OWNER MANUAL - Hardin Marine
Contents
1. MANUAL FORWARD The operating instructions and maintenance recommendations in this manual will help you get acquainted with and get the most satisfactory performance from your new Hardin Marine Engine How well your engine will deliver the performance it has built into it depends in the care it receives This manual contains a listing of maintenance procedures that should be performed at recom mended intervals The operator or service personnel responsible for the care of this engine should be thoroughly familiar with these procedures This manual covers the full line of Hardin Gasoline Engines These engines have many differ ences however the operation and service is the same on all these engines In this manual we will cover the basic operation and service as well as some of the differences between engine models Hardin Marine takes pride in producing engines of quality for a wide variety of marine applica tions Engines that have been created through a great deal of research using high quality parts to achieve the upmost in performance and durability Should a need for replacement parts or service develop contact Hardin Marine or the Hardin Marine Authorized Dealer near you IMPORTANT OWNER REGISTRATION ee 2 INFORMATION2. ELECTRICAL SYSTEM 1 Refer to tune up chart page 5 for proper spark plugs for your engine 2 Remove and inspect each plug for broken glazed or blistered insu lators 3 Replace all plugs which are not serviceable 4 Besure all plugs that are installed are of the same make and number as other plugs in the engine FUEL SYSTEM Fuel Pump An externally vented marine type fuel pump is installed on Hardin engines A clear plastic hose is routed from the pump to the flame arrestor If fuel appears in this hose it indicates that a malfunction in the fuel pump has occurred Consult your Hardin Service Dealer as soon as possible for corrective service Under no circumstances should an automotive type fuel pump be used on any of the Hardin engines Fuel Filter A pleated paper filter is installed in the fuel intake fitting of the quadrajet carburetor This filter should be replaced once a season or whenever it be comes contaminated This filter will not allow water to pass and will need replacing should any water be picked up When checking the filter for dirt inspect the inside portion of the filter since the fuel flows from the inside toward the outside A bronze filter is used in the Holley carburetors This filter should be washed in carburetor cleaner and blown dry or replaced FUEL REQUIREMENTS Hardin engines are designed to operate on low lead or unleaded regular fuel of 91 octane Research Method or
3. Horsepower Figures Are Approximate And May Vary With Each Installation 5a 1 Borgwarner Transmission ATF Dextron 2 Twin Disc Transmission SAE 30 Detergent ENGINE SPECIFICATIONS MODELS H205 H225 H260 H280 Jet MODELS H225 H260 H280 V Drive 1 Flame Arrestor 7 Fuel Pump Inlet 13 Exhaust Manifold Drain 19 Engine Serial Number 2 Carburetor 8 Fuel Pump 14 Exhaust Riser 20 Starter 3 Fuel Pump Vent 9 Water Inlet 15 Exhaust Outlet 21 Oil Dipstick 4 Fuel Filter 10 Front Mount 16 PCV Valve 22 Trans Oil Dipstick 5 Oil Filler Cap 11 Rear Mount 17 Oil Pressure Sender 23 Oil Drain Hose 6 Fuel Line 12 Oil Filter 18 Alternator 24 Trans Oil Cooler ENGINE SPECIFICATIONS MODELS H333 H405 Jet 1 Flame Arrestor 7 Fuel Pump Inlet 2 Carburetor 8 Fuel Pump 3 Fuel Pump Vent 9 Water Inlet 4 Fuel Filter 10 Front Mount 5 Oil Filler Cap 11 Rear Mount 6 Fuel Line 12 Oil Filter MODELS H333 H405 V Drive 13 Exhaust Manifold 14 Exhaust Riser 15 Exhaust Outlet 16 PCV Valve 17 Oil Pressure Sender 18 Alternator 19 Engine Serial Number 20 Starter 21 Oil Dipstick 22 Oil Drain Hose ENGINE SPECIFICATIONS MODELS 260 H280 Tournament Skier MODELS H225 260 H280 H333 H405 Inboard Fresh Water Cooling 1 Flame Arrestor 7 Fuel Pump Inlet 13 Exhaust Manifold Drain 20 Starter 2 Carburetor 8 Fuel Pump 14 Exhaust Riser 21 Oil Dipstick 3 Fuel Pump
4. Oct Reg 87 Oct Reg 87 Oct Reg 87 Oct Reg 87 Oct Fuel Pump Pressure 4 7 PSI 47 PSI 47 PSI 47 PSI 47 PSI Idie RPM In Water Jet 850 RPM 850 RPM 850 RPM 850 RPM 850 RPM Idle RPM 1 0 V 750 RPM 750 RPM 750 RPM 800 RPM 800 RPM Or Direct Drive Max Recommended RPM 4600 RPM 5000 RPM 5000 RPM 5200 RPM 5200 RPM Point Dwell 26 Each 26 Each 26 Each 26 Each 26 Each Timing 8 700 RPM 8 BTDC 700 RPM 8 700 RPM 8 BTDC 2700 RPM 8 BTDC 2700 RPM Spark Plugs MR 43 T MR 43 T AC MR 43 T AC MR 43 T AC MR 43 T AC Spark Plug Gap 035 035 1035 1035 035 Firing Order 18436572 18436572 18436572 18436572 18436572 Normal Oil Pressure 1500 RPM 30 45 PSI 30 45 PSI 30 45 PSI 30 45 PSI 30 45 PSI Oil Viscosity and Type SAE 30 Class SFSE SAE 30 Class SFSE SAE 30 Class SFSE SAE 30 Class 5 5 SAE 30 Class SESE Oil Capacity with Filter 6 Quart 11 Quart 6 Quart 11 Quart 11 Quart Ou Filter Model AC PF 25 Fram HP 1 AC PF 25 Fram HP 1 Fram HP 1 Transmission Oil See Note See Note See Note See Note See Note Viscosity and Type 102 102 102 102 102 Minimum Battery Rating 73 Amp 73 Amp 73 Amp 73 73 Amp Alternator Rating 35 Amp 35 Amp 35 Amp 35 Amp 35 Amp Alternator Model 8 MR 2051 F 8 MR 2051 F 8 MR 2051 F 8 MR 2051 F 8 MR 2051 F Distributor Model YL 670AV 2 YL 670AV 2 YL 670AV 2 YL 670AV 2 YL 670AV 2 Normal Water Temp 120 180 F 120 180 F 120 180 F 120 180 F 120 180 F Maximum Temp 200 F 200 F 2009 200 F 200 F zit 1
5. Vent 9 Water Inlet 15 Exhaust Outlet 22 Trans Oil Cooler 4 Fuel Filter 10 Front Mount 16 PCV Valve 23 Trans Oil Dipstick 5 Oil Filler Cap 11 Rear Mount 17 Oil Pressure Sender 24 Oil Drain Hose 6 Fuel Line 12 Oil Filter 18 Alternator 25 Heat Exchanger 19 Engine Serial Number 26 Radiator Cap ENGINE SPECIFICATIONS MODELS H333 H405 Inboard Iron MODELS 400 425 H430 Off Shore 1 Flame Arrestor 8 Fuel Pump 5 Exhaust Outlet 22 Trans Oil Dipstick 2 Carburetor 9 Water Inlet 16 PCV Valve 23 Trans Oil Cooler Fuel Pump Vent 10 Front Mount 17 Oil Pressure Sender 24 Oil Drain Hose 4 Fuel Filter 11 Rear Mount 18 Alternator 25 Power Steering Unit 5 Ou Filler Cap 12 Oil Filter 19 Engine Serial Number 26 Oil Cooler 6 Fuel Line 13 Exhaust Manifold 20 Starter 27 Thermostat Housing 7 Fuel Pump Inlet 14 Exhaust Riser Pipe 21 Dipstick FILLING THE FUEL TANK CAUTION GASOLINE VAPORS ARE EXPLOSIVE ALWAYS USE SAFETY MEASURES WHEN FUELING AND STARTING YOUR ENGINE 1 Insure that all electrical equipment is turned off 2 Extinguish all open flame and all smoking material 3 The filler hose nozzle should be in contact with the fill pipe to prevent sparks BEFORE STARTING 1 Check engine transmission or outdrive for proper oil level 2 Check fuel supply 3 Operate bilge blower for at least 4 minutes prior to cranking the engine to remove any possible gasoline fumes from the engine
6. automotive system with the heat ex changer working as a radiator This system allows you to keep the engine protected from salt water if operating in salt water areas and also protects from sand and dirt build ups if you are operating in extremely silty or shallow water SALT WATER OPERATING When the engine is operated in salt or silty water it is recommended to flush engine with fresh water after each days use If salt water is allowed to stay in the engine deposits from salt build up and corrosion could buildup to the point of shutting off the flow of engine cooling water which could re sult in severe engine damage COOLING SYSTEM FLUSHING PROCEDURE 1 Disconnect hose at coupling in front of drive unit or install an ap proved flushing attachment and connect a garden hose a On Free System run water through system until water is clear or salt free coming out of the exhaust ports b If Recirculating System is used the engine should be started and run at idle at operating temperature while flushing water isbeing applied This allows the water to pass through the thermostat housing and recirculation pump for complete flushing Do not run longer than 5 minutes 2 If engine has been operated in silty water for several hours it is a good practice to flush the block for sand deposits a With engine running open petcock on the side of the block and apply flushing water to the engine See Figure 18 b Open drain p
7. compartment 4 Check that all the engine and exhaust manifold drain plugs on the engine are closed tight STARTING A Boats equipped with single lever control such as Morse MV J 1 Place lever in neutral detent 2 Pull button out or pull outward on lever to disengage shifter 3 Pump throttle by moving shift lever full forward and return two or three times to prime a cold engine Do not pump throttle if engine is hot Throttle should be at idle when starting engine 4 Turn ignition key to start and as soon as engine starts release key and allow switch to return to run position 10 OPERATING INSTRUCTIONS DO NOT OPERATE STARTER FOR MORE THAN 15 SECONDS WITH OUT PAUSING TO ALLOW STARTER MOTOR TO COOL FOR 2 MINUTES B Boats equipped with Foot Throttle d Place shift lever approximate neutral and place one hand on lever while starting This will enable you to keep the boat in neutral when the engine starts Pump throttle as in an automobile to start cold engine Use starter limitation as listed previously AFTER ENGINE STARTS 1 2 3 4 Check oil pressure It should be at or above 10 Ibs at idle cold engine Run engine at close to idle until a rise in temperature can be detected on the temperature guage Place throttle in neutral and push button in to engage shift cable You are now ready to get underway Move shift lever forward to place drive in forward and a
8. cost of returning the defective product to an authorized Hardin Marine service dealer or Hardin Marine travel lodging or loss or damage to personal property 6 Some states do not allow the exclusion or limitation of incidental or consequential damages so the above limitations may not apply to you 7 This warranty is the only express warranty applicable to Hardin Marine Products and is in lieu of any other express or implied warranties including warranties or merchantability and fitness for a particular purpose All implied warranties are limited in duration to the minimum period required by State law Hardin Marine assumes nor authorizes any other person to assume for it any other liability or warranty in connection with its products 8 Some states do not allow limitations on the duration of implied warranties so the above limitation may not apply to you 9 This warranty gives you specific legal rights and you may also have other rights which may vary from state to state HARDIN MARINE INC 1711 S Claudina Way Anaheim California 92805 714 956 9100 BPI Revised 1 88 Printed in U S A
9. higher NOTE Research Method Motor Method Road Method 91 octane 83 octane 87 Road Method rating is posted on gas pumps Gasoline Containing Alcohol or Gasohol The use of Gasohol is not recommended in your Hardin Engine Carburetor Adjustments The carburetor has been adjusted at the factory and should not need adjusting However change in fuel altitude and climate may make it neces sary to re adjust Idle Mixture With the engine at operating temperature and at idle RPM adjust idle mixture Turn adjustment screw turn at a time until the maximum RPM is indi cated on the tachometer Idle Speed After both idle mixtures have been adjusted on engines coupled to jet drive adjust the idle RPM to 900 RPM if the boat is in the water On engines coupled to transmission set idle RPM to 850 RPM in neutral Insure that the choke is fully open before setting idle RPM FUEL SYSTEM HOLLEY CARBURETOR Figure 20 QUADRAJET CARBURETOR Figure 21 TROUBLE SHOOTING CHART TROUBLE POSSIBLE CAUSE WHAT YOU CAN DO Distributor points burned or mis adjusted E 1 Engine will not crank A Neutral start switch A Make sure shift control lever is in neutral B Loose or corroded battery cables B Tighten cables on battery If corroded clean de and or wiring harness plug scribed under Electrical System C Low Battery C Check level of electrolyte and refer t
10. or ater leaks Every time engine is used Clean crankcase vent filter x Replace PCV Valve x Replace carburetor ifuel filter x x Check battery x x Clean battery cables x Clean flame arrestor x x Cooling system hoses amp clamps x x x Check alternator belt tension x x Lubricate U joint x x d Engine tune up x 18 COOLING SYSTEM Hardin engines are offered with three types of engine cooling systems 1 Free system which is standard on all Hardin engines 2 Recirculating system which is optional on all Hardin engines 3 The closed system which is optional FREE SYSTEM Water is supplied to the engine from the jet drive or from an engine driven water pump when coupled to a transmission 1 Water enters the front of the exhaust manifold and is preheated as it passes through the manifolds on the way to the engine 2 The weter is routed from the exhaust manifold to the front cover plate of the engine and through the block and exits through the water dome on top of the engine 3 The water then passes through the risers and is dumped into the ex haust hose at the rear of the engine or directly into the exhaust in the case of some V drives NOTE When the jet is the source of water for the engine particular at tention should be given to the idle RPM of the engine Ifthe idle is set too low below 900 RPM in the water the jet will not develop the pressure required to cool down an eng
11. purchaser each new engine assembly manufactured by Hardin Marine to be free from defects in material and workmanship 2 The warranty period shall commence on the date the product is first placed in service or thq date of purchase by the first retail purchaser whichever comes first and shall continue for a period of one year from that date under normal non commercial use In the case of commercial use this warranty shall be effective for a period of 90 days from the date of purchase by the original retail purchaser Hardin Marine s limited warranty engine model H425 OS shall be for period of three months from the datg of original retail purchase y 3 Claims under this warranty shall be made by returning the defective part to an authorized service dealer of Hardin Marine nearest to the purchaser s residence the address of which will be furnished by Hardin Marine upon your request or by returning the defective part to Hardin Marine at the address below Hardin Marine will not pay for tabor and or materials furnished by other than Hardin Marine or its authorized service dealers 4 Any product determined by Hardin Marine to be defective in either material or workmanship during the warranty period will be repaired or replaced at Hardin Marine s option without charge for parts or labor Hardin Marine s liability hereunder shall be limited to repairing or replacing parts found to be defective during the warranty period 5 Hardin Marine reserves t
12. this procedure START ENGINE TURN ON WATER TURN OFF WATER STOP ENGINE ON JETS ONLY 4 For V Drive engines or engines equipped with an engine driven Figure 8 water pump follow this procedure TURN ON WATER START ENGINE STOP ENGINE TURN OFF WATER Gate Valve 5 Water injected headers are DRY and HOT at idle They are also hot the first 6 inches out from the head to the water inlet fitting and the chrome will blue to this point Failure to do any of above or if system is not working correctly could result in SEVERE ENGINE DAMAGE 11 OPERATING HINTS FOR BOAT OWNERS A When launching your boat do not back the trailer in at a fast pace and hit the brakes to shoot the boat off the trailer This launching tech nique could force water up the exhaust port and into the engine which could cause severe damage to the engine The in the exhaust ports and the risers on the exhaust manifold are designed to prevent this from happening under normal use See figure 9 Static water Line FIG 9 NOTE If the engine should develop a hydro static lock water drawn into the cylinder through the exhaust system the following steps should be taken 1 Loosen the connection between the exhaust riser and the exhaust manifold This will allow any water that is trapped inside the exhaust chamber to drain out Retighten the riser 2 Remove all spark plugs remove the center wire of
13. R 43 T MR 43 T MR 43 T ARF 32 Plug Gap 035 035 035 035 035 Firing Order 165432 18436572 18436572 18436572 15426378 Normal Oil Pressure 1500 RPM 35 45 PSI 30 45 PSI 30 45 PSI 30 45 PSI 35 65 PSI Oil Viscosity and Type SAE 30 Class SF SE SAE 30 Class SESE SAE 30 Class SFSE SAE 30 Class SF E SAE 30 Class SFSE Oil Capacity with Filter 5 Quart Approx 6 Quart 6 Quart 6 Quart 6 Quart Oil Filter Model AC PF 51 AC PF 25 AC PF 25 AC PF 25 CIAZ 6731 A Transmission Oil See Note See Note See Note See Note See Note Viscosity and Type tor2 1 2 1 2 1or2 tor2 Minimum Battery Rating 73 Amp 73 Amp 73 Amp 73 Amp 73 Amp Alternator Rating 35 Amp 35 Amp 35 Amp 35 Amp 35 Amp Alternator Model 8 MR 2051 F 8 MR 2051 F 8 MR 2051 F 8 MR 2051 F 2051 F Distributor Model Prestolite YL 670AV 2 YL 670AV 2 YL 670AV 2 D3JL 12100 Normal Water Temp 1209 1809 120 1809F 120 180 120 160 120 1809F Maximum Temp 200 F 200 F 200 F L pat aad Horsepower Figures Are Approximate May Vary With Each Installation 1 Borgwarner Tran on 2 Twin Disc Transmission SAE 30 Detergent ENGINE SPECIFICATIONS H 333 H 400 OS H 405 H 425 OS H 430 OS 17 27 18 Net Horsepower 333 400 360 425 430 Bore 425 425 425 4 25 4 25 Stroke 40 40 40 40 40 Displacement 454 C l 454 454 454 454 Compression Ratio 81 88 1 88 1 88 1 88 1 Fuel Requirements Reg 87
14. Warranty Form Warranty Card Engine Serial Number PHE DELIVERY Col Ye ele eueeg eege 3 OWNERS RESPONSIBILITIES 10 Hour Inspections ENGINE SPECIFICATIONS 5 9 OPERATING INSTRUCTIONS Starting Engine Operating The Header Gate Valve Operating Hints 10 Hour Break in Period Instruments LUBRICATION Engine Oil Engine Oil Draining Universal Drive Lines Throttle Cable Crankcase Breather Filter PCV Valve Maintenance Service Chart TABLE OF CONTENTS COOLING SYSTEMS Description Salt Water Operation Flushing Procedure ELECTRICAL SYSTEMS Alternator Battery Spark Plugs FUEL SYSTEM Fuel Pump Type Fuel Carburetor TROUBLE SHOOTING 2 rere enr dle EA KEEN 25 27 WINTER STORAGE PREPARATION OF ENGINE FOR SERVICE 30 WIRING ER EEN EEN 31 33 WARRANTY SERVICE Inside Back Cover WARRANTY STATEMENT Back Cover IMPORTANT INFORMATION IS POINTED OUT BY BOLD RED TYPE IMPORTANT OWNER REGISTRATION INFORMATION WARRANTY FORM Included with this manual is a warranty form which must be filled out and mailed to Hardin Marine to initiate the warranty on your new Hardin engine and or drive This form is pre add
15. Water Temperature Gauge The water temperature should be observed closely during the break in period Normal operating range is from 120 F to180 F Maximum opera tion temperature is 195 F During break in period special attention should be given to engine temperature at idle If necessary idle the new engine higher than normal to provide adequate cooling during break in period Ammeter The ammeter indicates the difference between alternator output and cur rent draw Should the ammeter indicate discharge when the engine is running above 1000 RPM have your dealer check the circuit as soon as possible Normal ammeter reading at average current draw is 20 amps at 1500 RPM Higher readings will be seen if the battery has a very low charge Voltmeter Your boat may be equipped with a voltmeter in place of an ammeter The voltmeter indicates battery and alternator conditions With switch on the voltmeter indicates battery conditions of 11 to 12 volts During normal op eration the voltmeter should indicate 12 5 to 14 volts During starting 9 5 volts is normal Should voltage drop to 7 while cranking or remain at 12 volts during normal operation see your Hardin Dealer for an electrical check up ENGINE INSTRUMENTS Tachometer This indicates the RPM at which the engine is running A decrease in maximum RPM indicates a loss of horsepower from the engine and may be an indication of need for a tune up An increase from the normal maxim
16. drain plug located in engine crankcase oil pan and drain in suitable container Replace drain plug NOTE If you are unable to drain the oil through the oil pan drain plug remove the oil dip stick and pump the oil out of the engine via a plastic tube inserted in the dip stick tube See Figure 10 NOTE Beginning in 1985 Hardin Engines will be equipped with an oil drain hose To drain the oil on these engines simply remove the brass cap at the end of the hose and drain in to a suitable con tainer 3 Remove the oil filter Coat seal on face of new filter with clean engine oil and install new filter Tighten 2 3 turn past finger tight 4 Pour fresh oil into engine through filler cap on top of engine SAE 30 5 Start engine and turn on water Check for oil pressure and run at idle for 2 minutes Check for leaks 6 Stop engine and check oil level with oil dip stick Add oil if necessary to bring level up to the full mark When checking oil level the engine should be near level the dip stick pushed down fully and sufficient time should be allowed for theoil to drain back into the oil pan area OIL PAN PLUGS MUST BE TORQUED 25 FT LBS TO PREVENT WATER DILUTION OF OIL Figure 10 Method B Remove Oil Through Oil Pressure Fitting at Front of Engine 1 With coolant water flowing to engine and transmission or jet drive in neutral start engine and allow to reach normal operating tempera ture but not longer t
17. dwell Ignition coil bad Ignition wiring cracked or corroded wire ends Spark plugs fouled Throttle not fully opened oo Replace filter Have Hardin Dealer check Adjust or see Hardin Dealer Have Hardin Dealer check Clean or replace Clean or replace Adjust throttle cable 26 TROUBLE SHOOTING CHART TROUBLE WHAT YOU CAN DO POSSIBLE CAUSE d 5 Loss of RPM under full A Fuel filter dirty A Replace throttle B Foreign material or water in fuel B Replace fuel filter and clean fuel system C Spark plugs fouled C Clean or replace D Incorrect dwell D Adjust E Incorrect timing E Adjust F Distributor points burned F See Hardin Dealer G Stuck power piston in carburetor G See Hardin Dealer H Partially closed choke j H Free linkage or adjust choke 6 Engine backfires A Spark plug wires installed wrong A Correct wiring order B Engine starving for fuel B Check fuel supply system 7 Alternator will not ore 73 Drive belt loose or broken SI A Adust or replace belt or has low output B Wiring connections on alternator B Clean and tighten connections and check wiring loose corroded or broken C Battery has no charge C Check battery conditions D Circuit breaker tripped if installed D Reset 27 WINTER STORAGE WINTER STORAGE a Free System Long periods of storage can adversely effect the internal parts of your engine unless methods of preser
18. g your engine with the boat in the water A 5096 mixture of antifreeze and water may be added to all systems Exhaust Manifold after draining to help minimize the chance of freezing Drain Plug Figure 23 28 J H A 1 1 1 11 WINTER STORAGE 3 Open petcocks on port and starboard side of the engine See Figure 24 b Recirculating System Same as above plus disconnect large water pump hose and crank engine over to empty recirculating pump c Closed System 1 Drain heat exchangers 2 Add anti freeze to system to prevent freezing 10 Drain oil cooler if installed 11 Remove the battery from the boat clean posts check electro lyte level and store in a ventilated area that is not exposed to children The battery should be fully charged when stored to prevent damage from freezing and should be recharged peri odically if stored for an extended period of time over months 12 Coat all engine electrical connections with a light coating of rust preventative 18 Cover the intake area of the flame arrestor and exhaust ports with tape to minimize condensation inside the engine NOTE The preceding procedure is intended for preparation of your boat for dry storage Hardin Marine does not recommend leaving a Hardin equipped boat in the water for an extended period of time if you do not intend to operate the boat on a regular basis For more information on leaving your Hard
19. han 5 minutes Shut off engine 2 Remove oil pressure sender from engine block 3 Install a threaded nipple into the sender fitting see Figure 11 4 Install rubber hose over nipple and place other end into an oil drain pan 5 Start engine and run at 1000 RPM until oil stops running out rubber hose Normally this takes about 25 seconds In all cases do not run engine for more than 60 seconds with oil pressure sender removed NOTE Running procedure for Jet Drive Engines START ENGINE TURN ON WATER TURN OFF WATER STOP ENGINE ENGINE LUBRICATION Figure 11 6 Remove oil filter Coat seal on face of new filter with clean engine oil or grease and install new filter Tighten 2 3turn past finger tight Re install oil pressure fitting 7 Pour fresh oil into engine through filler cap on top of engine SAE 30 8 Start engine and turn on water Check for oil pressure and run at idle for 2 minutes Check for leaks An optional oil filter relocator which aids in the removal of the oil filter andan oil drain kit are available Ask your Hardin Dealer for further details NOTE Running procedure for V Drive Out Drive or Engine Driven Water Pump Engines TURN ON WATER START ENGINE STOP ENGINE TURN OFF 16 WATER ENGINE LUBRICATION UNIVERSAL JOINT Use a hand grease gun at the Zerk fittings on each cross of the universal joint Do not overgrease these as the seals may be damaged by excess grease Use a 150 weight EP2 au
20. he right to change or improve the design of any Hardin Marine product without assuming any obligation to modity any such units previously manufactured EXCLUSIONS AND LIMITATIONS This warranty does not apply to 1 Any part accessory or product not manufactured by Hardin Marine and for which a manufacturer s warranty has been supplied to the consumer by the respective manufacturer 2 Normal maintenance items such as tune up lubrication filters and adjustments necessary as a result of normal wear and tear 3 Any engine assembly or part which has been modified altered or repaired by other than Hardin Marine 4 Products damaged as a result of misuse neglect negligence accident freezing normal wear and tear corrosion improper installation operation with fuels oils or lubricants which are not suitable for use with the engine failure to operate and maintain the product in accordance with the owner s manual supplied with each new Hardin Marine product products used for racing damage resulting from water or other substances entering through the exhaust manifold or carburetor operating the engine at RPM in excess of the maximum rated RPM as stated in the owner s manual or any cause other than a defect in the manufacture material or assembly of a Hardin Marine Product 5 Hardin Marine shall not be liable for any incidental consequential or other damages whatsoever including but not limited to loss of use loss of time inconvenience
21. ilter at the end of the 10 hour break in period 9 Change fuel filter If after initial break in period you wish to operate your engine at or near maximum RPM s in rough water conditions wherein the craft may become temporarily air borne it is recommended that a RPM Limiter be installed on your engine to protect your investment The RPM Limiter that is available from your Hardin Dealer is set at Maximum Rated RPM This is only to pre vent the engine from going to extreme RPM s should the engine suddenly unload under full throttle It is not designed to be a governor and the same RPM limitations for normal operation should be observed CAUTION FOR HIGH RPM AT NO TIME SHOULD THE ENGINE BE OPERATED BEYOND THE SPECIFIED MAXIMUM RPM RATING EN GINE FAILURE WHICH IS A RESULT OF EXCESSIVELY HIGH RPM WILL NOT BE REPAIRED UNDER THE WARRANTY MAXIMUM RECOMMENDED RPM IS AS FOLLOWS 205 4600 RPM H320 4600 RPM H405 5000 RPM H225 4400 RPM H333 4600 RPM H425 5200 RPM H260 4400 RPM H400 5000 RPM H430 5200 RPM H280 5000 RPM INSTRUMENTS A good habit to form is that of checking your engine gauges every few minutes They are the best source of information on the performance of your engine Oil Pressure Gauge Oil pressure should be checked each time the engine is started and at intermittent times during operation Normal oil pressure is between 30 40 PSI at 1500 RPM Minimum oil pressure at 900 RPM when the engine is throughly warm is 10 PSI
22. in equipped boat in the water consult the Hardin dealer in your area Figure 24 Block Drain 29 PREPARATION OF ENGINE FOR SERVICE Close petcock drains 1 port side and 1 starboard side of the block Replace drain plugs 1 port side and 1 starboard side of mani folds Replace plug in oil cooler if oil cooler is used Connect water hoses and check all hose connections Clean battery end of cables and install fully charged battery In sure positive cable is connected to positive post Apply light coat of oil to battery post Fill fuel tank with fresh fuel and turn fuel valve on RETURN ENGINE FOR SERVICE 7 Remove tape from flame arrestor and exhaust ports Remove spark plugs Clean and gap crank engine over for 15 seconds to insure all reciprocating parts are free and fresh oil is being pumped throughout the engine Install spark plugs and take care to connect plug wires in proper order Install new carburetor fuel filter 10 43 Check engine and drive for any foreign objects loose nuts etc Air out engine compartment thoroughly and start engine See engine starting procedures on page 10 INSTRUMENT WIRING AMMETER Blue 16 Instrument Lights E Red 10 Orange Black 10 e gl 5 45 3 5 E 58 11 Fuse si 3 9 71 ACC SWITCHES AGC 20 2 Fuse Red 14 B
23. ine after a hard run Maximum temperature for this engine is 195 F The engine should be run around 140 F under full throttle 19 Exit engine J From jet drive 77 FREE SYSTEM RECIRCULATING SYSTEM Water is supplied to the engine from the jet drive or from an engine driven water pump and is recirculated through the engine by a recirculat ing pump The temperature of the engine is controlled by a thermostat lo cated on the upper front section of the engine 1 Water enters the front of the exhaust manifold and is preheated as it passes through the manifolds on the way to the engine 2 The water is routed from the exhaust manifold to the bottom of the thermostat housing The thermostat determines what portion of tht water is used to cool the engine and the rest exits at the top of thi thermostat housing 3 The water in the block is circulated through the block by the recircu lating pump located below the thermostat housing 4 Water is routed from the top of the thermostat housing through the risers and dumped into the exhaust hose at the rear of the engine RECIRCULATING SYSTEM Figure 17 20 COOLING SYSTEM CLOSED SYSTEM Water is supplied to the engine by the jet drive or an engine driven water pump This water passes through the heat exchanger located at the front of the engine and into the exhaust risers The manifolds and engine are cool ed by a closed system much like an
24. iness hours for warranty repairs The following items are not covered by the warranty a b o a Normal tune up points plugs condenser carburetor adjust ments or wiring Malfunctions due to improper maintenance or lack of mainte nance Additional service work which is requested by you that is not necessary to repair the defect Damage from use of lower octane fuel than that specified or use of contaminated fuel Damage to the engine electrical system due to incorrect wiring of harness instrument panel or electrical equipment not provided by Hardin Marine Damage to engine from submersion or freezing Damage from water reentering engine through exhaust system Engine failure from excessive RPM Engines used for racing or subject to accident neglect alterations or imporper installations Repairs for normal wear rust or corrosion or failure of non authorized parts Pick up and delivery of boat mechanic s travel time or haul out charge Subsequent owners are not covered under the warranty Basically this warranty is designed to protect you from bearing the cost of repair of a Hardin engine drive unit or trans where that repair is caused by Hardin s neglect This warranty is not designed to protect you if your engine is not maintained and operated properly HARDIN MARINE LIMITED ENGINE WARRANTY 4 Hardin Marine warrants to the first original retail
25. lue 16 Tan 16 Gray 16 Lights To Blower 31 Blue 16 To Fuel Sender Acc Switches NOTE This diagram depicts voltmeter usage The use of the old style ammeter is not recommended Do not connect 12 volt power source to any Blue 16 Instrument Lights Black 12 Blue 16 Tan 16 terminal Do not connect any wire to voltmeter s terminal Hardin tachs may be used for 4 6 or 8 cylinder engines Insure jumper wir truments are compatible with all Hardin engines is connected to proper pin 32 INSTRUMENT WIRING VOLT METER WIRING DIAGRAM Engine with Slave Solenoid and Circuit Breaker BATTERY 12V SLAVE RELAY ALTERNATOR DISTRIBUTOR Violet 16 BALLAST RESISTOR STARTER Violet 16 Orange 10 ds CIRCUIT BREAKER 2223 PRESSURE WATER SENDER TEMP SENDER Tan 16 IMPORTANT FACTS ABOUT YOUR WARRANTY 1 A Warranty Form is sent with the engine and or drive This form must be filled by you and your dealer and sent to Hardin Marine for product registration within 10 days of purchase A Warranty Card will then be sent to you 2 A Warranty Card must be presented to a Hardin Marine Authorized Dealer before any warranty service is begun 3 The engine must be delivered to a Hardin Marine Authorized Dealer s place of business during regular bus
26. lugs in manifold and close engine drain petcocks and apply more flushing water Manifold drains are located in the lower rear portion of the manifold See Figure 19 c If equipped with an optional oil cooler or transmission oil cooler remove plug in cooler and allow water to flush through engine See Figure 20 CAUTION IF BOAT HAS OVER TRANSOM EXHAUST MAKE SURE NOSE OF BOAT IS UP START ENGINE THEN TURN ON WATER SHUT OFF WATER STOP ENGINE JETS ONLY 1 Figure 18 Figure 19 Figure 20 The electrical system of your Hardin engine consists primarily of an alternator transistorized voltage regulator battery and distributor ALTERNATOR The Hardin engine is equipped with a Motorola Marine alternator with a built in solid state voltage regulator which requires no adjustment The output of this alternator is 37 amperes at 1500 RPM and above Hardin en gines which are shipped from the factory prewired have a 35 amp circuit breaker which protects the electrical system This breaker is located on top of the engine bellhousing and should it trip you may reset it Should it continue to trip consult your Hardin Authorized Dealer to determine the cause Alternator belt tension may be checked by pressing the belt down mid way between the pulleys Under proper tension the belt should be dis placed about 7 inch To tighten belt loosen the top bolt on the alternator and the bolt in the sloted bracket at the bottom and adju
27. ne The engine serial number is stamped onto the engine block or head on the port left side of the front of the engine as indicated by the arrows below See figure 1 MODELS H320 H205 H225 H260 H280 H333 H400 H405 H425 H430 FIGURE 1 The selling dealer should assist you in being properly equipped accord ing to Coast Guard requirements and local regulations He should also assist you in water testing the boat to permit you to familiarize yourself with the handling and operation of the boat The dealer should conduct a pre delivery inspection of your boat priorto delivery to you The following items are to be checked Engine Oil Level Tightness of fuel and oil lines Battery charge All water hoses tight Tightness of all exhaust manifold nuts Control adjustments All drain petcocks closed Alternator belt tension 9 Exhaust hose and clamps 10 Alternator for charge 11 Engine idle speed 12 Bilge area for water leaks PM PHF oe Pe PRE DELIVERY INSPECTION OWNERS RESPONSIBILITIES A With the ownership of a new boat you receive certain responsibilities By law you are now responsible for all occupants of your boat It is required that you meet U S Coast Guard Personal Flotation Device PFD require ments Instruct at least one other person aboard in the basic handling skills of your boat to enable that person to operate the boat in case of an emer gency You should observe the rules and regulations of
28. ness Check the bilge pump and blower for operation Check all switches lights and other equipment for operation Launch the boat Start the engine and check the timing and dwell of the distributor Check the operation of all the instruments Check the carburetor adjustments Check for overheating at maximum RPM s and at idle RPM s Check the operation of the steering and shifting system If any deficiencies malfunctions or signs of abuse exist in the 10 hour inspection it should be noted brought to your attention and corrected at that time NOTE If defects are found in the equipment that is not supplied by Hardin Marine please contact that manufacturer for service information ENGINE H 205 H 225 H 260 H 280 Net Horsepower 205 225 260 280 Bore 4000 374 400 400 Stroke 3 480 3 48 348 348 3850 Displacement 262 305 350 350 460 Compression Ratio 931 853 91 Fuel Requirements Reg 87 Oct Reg 87 Oct Reg 87 Oct Reg 87 Oct Reg 87 Oct Fuel Pump Pressure 6 7 PSI 4 7 PSI 4 7 PSI 4 7 PSI 5 7 PSI Idle RPM In Water Jet 850 RPM 800 RPM 800 RPM 800 RPM 900 RPM Idle RPM 750 RPM 750 RPM 800 RPM 750 RPM V or Direct Drive Max Recommended RPM 4600 RPM 4400 RPM 4400 RPM 5000 RPM 4600 RPM Point Dwell 39 26 Each 26 Each 26 Each as Timing 8 BTDC 600 RPM 8 BTDC 700 RPM 8 700 8 BTDC 700 RP 8 BTDCQ550 RPM Spark Plugs AC MR 43 T M
29. not use a large burst of power above 1500 RPM unless you are getting under way For propeller drive boats be sure to maintain an adequate depth to prevent fouling the propeller OPERATING INSTRUCTIONS ENGINE 10 HOUR BREAK IN PERIOD All Hardin engines have been test run at the factory for a short period of time to make adjustments and check out all the systems This is not to be considered a break in of the engine The proper break in is essential to assume minimum oil consumption and maximum engine performance and service 2 First 10 minutes Idle RPM and check for oil pressure leaks proper cooling and proper control adjustment Next 15 minutes Minimum planning RPM 3 Next 35 minutes Up to 4000 RPM with no sudden acceleration Next 60 minutes Varied RPM up to maximum RPM momentarily with no sudden accelerations For the remainder of the first 10 hours of your engine s life vary the RPM with no full throttle accelerations Conduct 10 hour check and operate engine in accordance with nor mal procedures a o CAUTION DO NOT PULL SKIERS OR OPERATE UNCER HEAVY LOADS DURING THE 10 HOUR BREAK IN PERIOD OBSERVE INSTRUMENTS CAREFULLY DURING BREAK IN PERIOD TO INSURE PROPER OPERATION OF ENGINE 7 Also check for a Correct oil level b Proper cooling c Oil water or fuel leaks d Abnormal vibration or noise e Loose mountings fittings bolts nuts and clamps 13 8 Change oil and f
30. o Electrical System D Ignition Switch D Replace switch E Hydrostatic Lock water in engine E Remove spark plugs and turn engine over by hand See cylinder Hardin Dealer if engine is damaged 2 Engine cranks but will not A Empty fuel tank A Fill tank Eus B Tank vent clogged B Free vent of obstruction C Shut off valve closed C Open valve D Clogged fuel filter D Inspect fuel filter Replace if necessary as outlined under Fuel System E Choke stuck open E Free choke valve and linkage F Engine flooded F Open throttle full open and do not attempt to start engine for at least 5 minutes G Fouled spark plugs or improper gap G Inspect spark plugs Clean or replace See your Hardin Dealer for replacement of points TROUBLE SHOOTING CHART TROUBLE POSSIBLE CAUSE WHAT YOU CAN DO 3 Idles rough or misses while idling mmono Idle speed low Vacuum leaks Spark plugs fouled Mositure or cracks in distributor cap Burned or sticking valves Incorrect distributor advance or point dwell Incorrect idle mixture o mmono Adjust idle to specifications Correct leaks in hoses intake manifold or carburetor mounting bolts Clean or replace Clean or replace See Hardin Dealer Adjust or see Hardin Dealer Adjust 4 Engine hesitates on ac celeration or sluggish A Fuel filter dirty Accelerator pump inoperative Incorrect distributor advance or point
31. ressed to Hardin Marine and should be filled out by you and your dealer at the time of purchase Please fill out the card com pletely including the engine model and serial number and mail it within 10 days of purchase date NOTE The Federal Boat Safety Act of 1971 requires that registration lists of marine products sold in the United States be maintained by the manufacturers and dealers of these products Therefore it is extremely important that we receive your registration form both for warranty purposes and to comply with federal regula tions This product owner information will also enable us to con tact you should it become necessary to change or improve the product to protect the well being of you the owner and operator WARRANTY CARD When the completed warranty form is received by Hardin Marine a plastic Owner s Warranty Card will be made and sent directly to you This warranty card is your only valid identification for warranty work and must be presented to a Hardin Authorized Service Dealer for warranty work FAILURE TO RETURN WARRANTY FORM CONSTITUTES A WAIVER OF ANY NOTIFICATION AS DESCRIBED IN THE 1971 FEDERAL BOAT SAFETY ACT ENGINE SERIAL NUMBER The serial number should be recorded on the warranty form supplied with this manual and should be referred to in any correspondence concern ing your engine This number will be imprinted on your warranty card which must be used whenever any warranty repairs are made on this engi
32. s lever con tinues to move forward throttle will be advanced JET DRIVE ENGINES MAY BE RUN WITH BOAT OUT OF WATER ONLY IF WATER IS SUPPLIED TO THE INLET WATER HOSE FOR ENGINE COOLING DO NOT RUN OVER 2000 RPM OR FOR MORE THAN 1 MINUTE OR DAMAGE MAY OCCUR IN THE SEAL AREA OF THE JET DRIVE IF WATER IS NOT SUPPLIED TO THE ENGINE IT MAY BE STARTED BUT SHOULD ONLY BE ALLOWED TO RUN FOR A FEW SECONDS DO NOT START V DRIVE I O OR DIRECT DRIVE ENGINES WITHOUT A WATER SUPPLY AS DAMAGE MAY BE DONE TO THE WATER PUMP OPERATING INSTRUCTIONS CAUTION KEEP PASSENGERS AWAY FROM HEADER AT ALL TIMES FAILURE TO DO SO COULD RESULT IN SEVERE INJURY 7 In short allow only enough water to pass through headers to keet the rest of the chrome from blueing 8 Keep belongings and passengers away from header and engine at al times C Boats equipped with Water Injected Headers 1 The Gate Valve The gate valve see fig 8 is necessary so that you can regulate the amount of water that passes through the headers 2 Operating the Gate Valve A Turn valve clockwise to allow more water to headers B Turn valve counter clockwise to restrict the amount of water to headers C General rule to follow The faster the boat speed the more the valve should be turned clockwise The slower the boat speed the more the valve should be turned counter clock wise 8 When running boat on trailer make sure nose of boat is elevated Always follow
33. st to prop er tension and retighten both bolts Belt tension should be checked after the first 10 hours and several times a season thereafter ELECTRICAL SYSTEM BATTERY 73 AMPERE HOUR RATING Your boat should be equipped with a 12 volt minimum 73 ampere hour rating battery Battery cables should be as short as possible If the com bined length of the positive and negative cables is 8 feet or less number 2 gauge cables are required to enable you to crank your engine properly Periodically check water level in each cell and use only pure distilled water when replenishing the supply Make sure battery is fully charged when stored below 32 F This will prevent freezing Battery acid should be handled with care If it is spilled or splashed on any part of the body immediately flush the exposed area liberally with water Keep battery clean particularly the top of the battery Clean by washing with asolution of baking soda and water making sure neither soda solution nor water get into the battery cells Flush with clean water A light coat of oil will help retard corrosion on battery posts When connecting a battery insure that the negative terminal is grounded When connecting a booster battery or charger make certain the connections are plus to plus and minus to minus Failure to do this could damage the battery SPARK PLUGS To obtain the maximum performance from your engine use only the re commended spark plugs
34. the area in which you are going to operate your boat in order to protect your passengers well as yourself For additional information contact the local U S Power Squadron American Red Cross or the State Boating Authorities B As a boat owner you are responsible for the normal maintenance and replacement of service items These are not considered defects in material and workmanship within the terms of the warranty 1 T OWNER S RESPONSIBILITIES 10 HOUR INSPECTION To insure that you receive the maximum service from your Hardin equip ment you should ask your Hardin Dealer about a 10 hour service and in spection after the first 10 hours of operation ALTHOUGH THE 10 HOUR SERVICE I8 NOT COVERED UNDER THE WARRANTY POLICY the cost to you will be minimal and should a malfunction be found and corrected at this time the inspection will pay for itself many times over The following is a list of items to check or service Check for oil fuel or water leaks Drain oil and replace filter see oil change pg 15 17 Check and re tighten engine mount bolts Check fuel line fittings for tightness Check hose clamps and hoses Check the alternator belt for correct tension Check throttle linkage Check the flame arrestor Check the fuel filter Check all electrical connections for tightness Seernoneeona 11 12 13 14 15 16 17 18 19 Check exhaust manifold bolts for tight
35. the coil and crank engine for 15 seconds 3 Squirt approximately 1 teaspoon of motor oil in each cylinder and crank engine again for 15 seconds 4 Replace spark plugs re install the coil wire and start engine If engine does not sound normal do not continue to operate your engine until your Hardin Marine Dealer has checked it out thor oughly 12 OPERATING INSTRUCTIONS B If your boat is a low profile type boat with an open engine compartment you should be aware of the following wake of your boat when you are slowing down and the boat settles back into the water as it comes off Plane A little nudge of power from your engine just as the wake ap proaches the stern of your boat will prevent water from splashing over the transom and into the engine compartment C Before turning your engine off insure the following 1 The boat speed is below 2 MPH This will help prevent the following wake from forcing water up the exhaust ports 2 The engine is at idle This will prevent exhaust water from being drawn into the manifolds by a coasting engine D At full throttle and top boat speed a jet obtains water from 2 below the bottom of the boat However if full throttle is suddenly applied at zero boat speed a jet is capable of pulling in water and debris from up to 6 feet below the jet intake This is especially true when operating in re verse Therefore when maneuvering your jet boat in shallow water 6 feet or less do
36. tomotive chassis type grease but do not use a high pressure gun such as that used in a service station Figure 12 Figure 13 THROTTLE CABLE Spray WD40 or light weight oil on exposed end of the throttle cable at the engine end and work the cable in and out to lubricate CRANKCASE BREATHER FILTER The crankcase breather filter is located on the left hand valve cover on engine models H225 H260 H280 H333 and H405 See Figure 14 gine model H320 the crankcase breather filter is located on the right hand 17 valve rocker cover Should this filter become plugged blow by fumes would be condensed in the crankcase resulting in the formation of acid sludge build up oil dilution oil blow by higher oil consumption and rust Any of these conditions could shorten the life of your Hardin engine Tc prevent this remove the filter at each oil change and wash in solvent re oi lightly with clean engine oil and replace Figure 15 PCV Valve A positive crankcase ventilation valve is located on the right hand valve rocker cover of the engine left side on the H320 This valve should be re placed at least every 24 months See Figure 15 ENGINE MAINTENANCE CHART ENGINE LUBRICATION Maintenance Log First Every Evry At Least Service 10 Hours 50 Hours 100 Hours Once A Year Change engine oil x Change oil filter x x x Inspect for fuel oil
37. um RPM would be an indication that the jet drive or V drive may not be func tioning properly 1 Oil Pressure 4 Ammeter or Voltmeter 2 Water Temperature 5 Fuel Guage 3 Tachometer ENGINE LUBRICATION ENGINE OIL Use only SF engine oil SF oil meets quality standard GM 61636 M and 2 101 It is recommended that SAE 30 used at all times The oil change interval and the new engine warranty are based on the use of oil which meets these requirements Oil conforming to these standards con tain detergent anti wear additives NON DETERGENT AND LOW QUALITY OILS ARE SPECIFICALLY NOT RECOMMENDED THE USE OF PROPER ENGINE OIL AND OIL CHANGE INTERVALS IS EVEN MORE IMPORTANT IN A MARINE ENGINE DUE TO THE HIGHER LOADS AND RPM THAT CAN BE AP PLIED TO THE ENGINE FOR EXTENDED PERIODS OF TIME The oil and filter that were installed at the factory should be changed at the 10 hour inspection Oil and filter changes should be made every 50 hours of operation or every 60 days thereafter whichever occurs first ENGINE OIL DRAINING PROCEDURE There are two basic procedures which can be used for draining or re moving oil from the engine s crankcase 15 Method A Remove Oil Through the Oil Pan Drain 1 With coolant water flowing through the engine and transmission or jet drive in neutral start engine and allow to reach normal operating temperature but do not run longer than 5 minutes Shut off engine 2 Remove oil
38. vation are used Your Hardin Authorized 1 Remove the hoses from the water inlet manifold dome on tor Dealer is equipped to provide this service for you of the engine See Figure 22 This will prevent vacuum holding water in the block The following procedures will give you maximum protection 2 Remove plugs on port and starboard manifolds See Figure 1 Warm up engine to normal operating temperature with cooling water 23 flowing through engine 2 Change engine oil and filter See Lubrication System 3 Run engine a few minutes to distribute fresh oil throughout engine Shut off engine and check oil level to insure it is at the full mark Shut off fue supply and remove and clean flame arrestor Start engine and run a fast idle of 1000 1200 RPM while slowly pour ing 1 cup of SAE 20W oil or rust preventative for this use into the carburetor while the fuel in the carburetor and fuel line is being burned Stall the engine by dumping the last few ounces rapidly into the carburetor Turn ignition off and replace flame arrestor 6 Drain fuel from fuel tanks to prevent gumming of the fuel 7 Loosen alternator belt 8 Flush engine see Flushing Procedures If a sand or silt deposit is allowed to remain in the block for an extended period of time it may become important to flush the engine prior to lay up rather than after the lay up period LES 9 Drain engine to protect from freezing during storage Hardin does not recommend drainin
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