Dynamite Specialty Products .15S User's Manual
Contents
1. Dynamite 15S Water Cooled Engine Instruction Manual Thank you for purchasing the Dynamite 15S marine engine We are confident that you will enjoy many hours of exciting R C boating action with this engine as your power plant Please read the instructions carefully in order to get the most out of your Dynamite Engine Water Cooled Because your Dynamite 15S engine is water cooled make sure that you do not run the engine for an extended period of time out side of the water Also continually monitor the water outlet while operating to make sure that the water continues to circulate through the cylinder head If the tubing gets clogged or for some other reason prohibits the water from circulating through the cylinder head the engine will overheat and fail This could cause permanent damage to the engine It is very important that you properly hookup the water pickup line to the engine to provide the necessary cooling Double Taper Piston Sleeve Your Dynamite 15S Engine features a double taper piston and sleeve Each piston and sleeve is hand matched Replacement piston and sleeves are sold as a set since you never want to replace just the piston or the sleeve individually Crankcase Porting Your Dynamite 15 Engine has a third port that is machined into the crankcase to significantly enhance the intake flow resulting in more horsepower Crankshaft Balancing The 15S provides a well balanced crankshaft which offers a smooth2. engine If the engine starts retighten the plug with the attached glow driver while the engine is running If the engine does not start refer to the Troubleshooting Guide in the manual You may have to blip the throttle on the transmitter applying throttle on off while trying to start the engine New engines are harder to start because of the tight piston sleeve fit Never start an engine to full throttle Over revving an engine will cause pre mature wear and breakage When the engine starts the muffler should emit excessive white blue smoke and the engine should be rich to such an extent that it is not providing horsepower or idling smoothly During the first tank of fuel advance the idle via the idle adjust ment screw more than normal to prevent stalling at idle due to the rich fuel mixture for break in For the break in period we recommend a slightly rich low speed needle setting and a very rich high speed needle setting for the first few tanks Again if the engine does not start after several tries refer to the Troubleshooting Guide or call the Horizon Service Center at 217 355 9511 After you get the engine started drive your boat around varying the throttle of your transmitter on and off through one tank of fuel making sure that the engine is rich Make sure that you do not travel too far from shore at this time as it may be neces sary to retrieve it if the engine dies After two or three tanks of fuel start lean
3. you need to replace the pull starter of your 15S remove the aoe Proving Warrant ONA ONS AVE eect yoursndine Secs in sha SS aaa es eee 15S ree ee three screws from the pull starter case Be very careful when Wi DA TEpaNSa lee en enet DYN6560 haa a a anes 12SPD 15S 295 DYN6565 taking the pull starter case off of the engine and make sure the Non warranty Repairs Sneule your PARAIr Cost Exceed S3000 DYN6561 Carburetor Ci a a 12S 12SPD 15S 395 recoil spring does not dislodge from the unit The recoil spring is VOU WEDE PrOVICEO WII AN eoulimete oul ing owe your nar a S une Enea very difficult to wind back onto the rope pulley and install back BEF One Any nee piake gne ornon wabienty o a nue ieee ee ee ee into the pull starter case In most cases it is easier to have a to you l l DYN657 1 W e i coe ee 15 95 replacement Recoil Spring in your pit box DYN6542 or Pull Payment method Please advise The Horizon Service Ponie ol DYN6572 cae ae oe za i 15S 2 95 Starter unit DYN6535 which includes the recoil spring rope pul pie Pay Ment Mer DOn YON pre UE aE PAE wed oF site sia i i ley and pull starter housing For other replacement parts for the paste Ear OF yon may TAAU A MRE Or O win EC OEE AEA R a ee pull starter and disassembling guidance refer to the line drawing in Porgy ne MDE pallis ATE Corn Pieter th YOu PrerEr tO USE your cee ca cea e a a the manual When reassembling the pull starter be absolutely sure Ii caray Diedse CGS YOUrCATAM
4. UMDRT aha EXPINANON AERE A a sable aan HR ata oe i DYN6576 Piston Cylinder Set 15S 34 95 that each part is oriented in the correct manner Section 8 Warranty Dynamite s engines are guaranteed against workmanship and manufacturing defects for period of 2 years from the original date of purchase This engine is of excellent design and materials and will provide many hours of modeling enjoyment If properly cared for this engine is extremely durable However if normal common sense care is not given to your engine it will not function properly for as long as intended The following items can shorten its life and will not be covered under warranty e Damage due to insufficient maintenance e Damage related to over revving the engine e Rusted bearings e Crash related damage e Damage due to use of improper fuel and or glow plug e Damage due to lean runs e Damage caused by foreign objects such as dirt or broken glow plug elements e Damage caused by unreasonable mounting or running conditions ff DYN6556 DYN6557 DYN6558 DYN6560 DYN6555 f DYN6565 DYN6551 DYN6562 DYN6552 DYN6553 DYN6565 DYN6559 DYN6554 On DYN6565 Richer High Speed Ldle Low Speed Needle Valve lt DYN6537 yy DYN6565 oy DYN6536 DYN6540 DYN6538 DYN6539 DYN6543 A T Nea ______ yneso DYN6541
5. er running and more efficient engine and will help create more horsepower and reliability Section 1 Using the Proper Fuel and Glow Plug To achieve reliability and proper tuning of any 2 cycle model engine it is highly recommended that you use fuel and glow plugs that are specially designed for these types of engines Do not use any type of airplane glow fuel We recommend using Blue Thunder First Run Break In Fuel for the first six tanks of running This fuel will ensure maximum life of your new and or rebuilt engine After proper break in switch to Blue Thunder regular fuel or Blue Thunder Race Formula blend These fuels are vigorously researched and specifically formulated for excellent power and engine protection Blue Thunder the 1 car fuel in America The Dynamite MC 59 McCoy Power Plugs DYN2508 will provide the best performance and longevity for your engine Section 2 Pro Mix Carburetor Your 15S comes equipped with the Dynamite Pro Mix Carburetor Each Pro Mix Carburetor is preadjusted idle to make starting easier Adjustmen This setting should give Screw you a rich mixture of fuel to your engine This setting is approximately 2 turns open for the high speed and 7 turns open for the low speed needle Richer High Speed Needle Valve Low Speed Needle Valve If you have difficulty starting your engine check the factory setting When checking the number of turns the high speed needle i
6. he boat in the water for 1 2 minutes Then bring the boat back in shore Place a few drops of water on the head If the water immediately evaporates the setting is too lean If it takes about 3 5 seconds before the water evaporates the settings are correct If the water stays on the head longer than 5 seconds without evaporating set the boat back in the water and run it for an additional 1 2 minutes If you repeat this procedure and the water is still not evaporating within 3 5 seconds the setting is too rich To lean out the engine simply turn the high speed needle clockwise 1 8 of a turn and run the engine again Continue doing this until the high speed needle is set correctly Tuning the Low Speed Needle It is best to tune the low speed needle after setting the high speed needle When you have achieved the proper operating temperature idle the engine and pinch the fuel line with you fingers at the fuel inlet nipple of the carburetor If the engine dies immediately the low end is set too lean When you pinch the fuel line the rpm should increase for about 4 seconds and then the engine should die To achieve the correct setting always adjust the needle only 1 16 of a full turn then test it before continuing After you have attained the correct needle settings the engine will have a strong sounding high pitched whine at full speed A thin trail of whitish smoke will be seen coming from the exhaust Idle Adjustment The last sett
7. ine If you have any questions about this proce dure please see your local hobby retailer or contact the Horizon Service Center e Damage due to improper disassembly or re assembly e Modification of any kind Parts Listing Section 6 Troubleshooting Guide i DYN6502 15S Water Cooled Universal 139 95 PROBLEM POSSIBLE SOLUTION ae DYN6520 Connecting Rod 12S 12SPD 15S 19 95 a a Engine won t start Reset needles to the factory setting If your engine is in need of repair please follow these steps DYN6522 Head Shims 01 02 12SPD 15S 3 95 Improper needle setting 1 Ship your engine in its original box packaged in a sturdy box DYN6523 Screw Set 12S 12SPD w o PS 8 15S 3 95 DYN6575 Out of fuel freight prepaid to DYN6524 PS Uni Crankshaft 12S SPD 15S 19 95 DYNG522 Improper fuel DYN6529 Flywheel Hub 12S 12SPD 15S 1 95 DYNG573 Improper glow plug Horizon Service Center DYN6530 Crankshaft Nut 12S 12SPD 15S 1 95 Glow starter not charged ATTN Dynamite Service DYN6531 Front Sealed Bearing 12S 12SPD 15S 6 95 DYN6576 Dead glow plug 4105 Fieldstone Rd DYN6532 Rear Bearing 12S 12SPD 15S 8 95 DYN6572 Engine flooded Champaign IL 61822 DYN6535 Pull Starter 12S 12SPD 15S 19 95 217 355 9511 DYN6536 PS Backplate 12S 12SPD 15S 6 95 sheen Engine starts Pressure line blocked or unhooked DYN6537 PS One Way Bearing 15S 12 95 then dies Reset needles to baseline setting 2 Include a note containing a brief summary of
8. ing on your engine is the idle screw To obtain a higher idle turn the idle screw clockwise for lower idle turn the idle screw counterclockwise Section 5 Engine Maintenance To ensure that your engine maintains its high performance and reli ability periodic maintenance must be performed After each day s use of the engine it is important to use a high quality after run oil or fuel in the engine The methanol used in the fuel draws moisture that can cause corrosion inside the engine We highly recommend Blue Thunder Final Run DYN2255 as it is formulated specifically for protecting your engine when it is not in use Follow these steps after each day s use of the engine e Empty all excess fuel from the fuel tank e Use Final Run Fuel following the Final Run instructions e Clean and inspect the outside of the engine Changing the Rod With the rod having most of the stress of any other part of a 2 cycle engine it is important to replace the rod after every 2 gallons of fuel that has been run through the engine This is a safe time frame for replacing the rod as it is less expensive to install a new rod than taking the chance of having it break and damage the engine To replace the rod refer to the line drawing on the back of the manual Study the drawing carefully and pay close attention when removing the piston sleeve and rod They must be installed exactly in their original position in order to avoid damaging your eng
9. ing out the high speed needle 1 16 at a time It generally takes about five to six tanks before you want to lean out the engine until it supplies good power Do not skip this process of breaking in the engine If you do not follow this procedure you could cause damage to your engine Remember be patient during your first start ups and runs With a high performance engine like the 15S first run attempts can take some time Once you are through the break in process your patience will be rewarded You will have an engine that is easier to start tunes more consistently and has more power Note It is common for an ABC engine to go through a glow plug or two during break in To test the plug let the engine idle at a properly adjusted low speed needle setting with the glow driver on Then remove the glow driver If the plug is good you will not hear a rpm change in the engine If the engine loads up and the rpm falls off the glow plug will need to be replaced Section 4 Setting the Needle Valves When adjusting the needle valves for maximum performance adjust the needles in small increments just 1 8 of a full turn at a time The worst thing you can do is to run the engine too lean doing so shortens the reliability of the engine When the engine is set too lean it will run strong at first but will then sag hesitate or stall when accelerating Tuning the High Speed Needle To check the high speed needle start the engine and run t
10. s open screw the needle clockwise leans out the fuel mixture using a straight tip Tuning Screwdriver DYN2775 and count the number of complete revolutions of the needle until it stops turning Do not tighten down on the needle valve Then unscrew the needle valve counterclockwise giving more fuel to the engine 2 turns before attempting to start the engine again When checking the low speed needle it is critical that the throttle barrel is closed when screwing in the low speed needle and that you don t over tighten the needle Use the same proce dure above for checking the low speed needle Section 3 Breaking in Your Engine The first start up of your engine is the most critical moment of your engine s life dictating how it will perform from that time forward Turn on the radio system and attach a glow driver DYN1925 DYN1950 to the glow plug Start the engine with the pull starter that is included on your engine Note When using the pull start of your engine never pull the rope out to its full length as doing so may cause damage and the rope may not retract Quick short pulls of the starter rope are the best technique to use with the pull starter If the pull starter is very hard to pull i e it will not extend out of the pull starter assembly the engine may be hydro locked Excessive fuel between the head and piston will not let the piston travel to TDC Top Dead Center Loosen the plug one turn and try to start the
11. the difficulty you DYN6538 PS Shaft 12S 12SPD 15S 2 95 DYN6550 Improper needle settings are experiencing and include the following information DYN6539 PS Cushion Spring 12S 12SPD 15S 1 95 DYN6565 elite content aad brenden uel DYN6540 PS Screw Set 12S 12SPD 15S 2 95 Engine runs Bad glow plug e Type of glow plug used DYN6541 PS Handle w Cotter amp Extension 12S 12SPD 15S 3 95 DYN6574 for partial tank Idle speed set too low e Type of air filter used DYN6542 PS Recoil Spring 12S 12SPD 15S 4 95 DYN6529 then dies Improper needle settings e Approximately how much running time the engine had before DYN6543 PS Rope Pully 12S 12SPD 15S 2 95 Overheated engine experiencing difficulty DYN6550 Carburetor 12S 12SPD 15S 24 95 Glow plug failed due to lean engine DYN6551 Carburetor Body w Spray Bar 12S 12SPD 15S 12 95 setting Please date your correspondence and be sure your name and DYN6552 Throttle Barrel 12S 12SPD 15S 5 95 a address appear on this enclosure Also include a daytime phone DYN6553 Throttle Barrel Boot 125 12SPD 15S 2 95 neo number DYN6554 Throttle Arm w Nut 12S 12SPD 15S 2 95 DYN6561 DYN6555 High Speed Needle Valve 12S 12SPD 15S 4 95 DYN6532 i i Warranty Repair To receive warranty service you must include DYN6556 High Speed Needle Holder 12S 12SPD 15S 4 95 Section 7 Replacing the Pull Starter your original dated sales receipt to verify proof of purchase DYN6557 High Speed Assembly Washers 12S 125PD 15S 2 95 If
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