Harbor Freight Tools xenon Advance Timing Light Product manual
Contents
1. creating an explosion that powers the vehicle Maximum power from the explosion must be delivered to the engine at a precise instant Attaining that precise instant is called Timing Timing is essential for fuel economy and power Automobile engine manufacturers determine the exact timing necessary for every engine they build Normal engine and ignition system wear causes the timing to change reducing both fuel efficiency and power Engine manufacturers use two terms when describing timing advanced and retarded Timing is advanced when the spark occurs before the piston reaches the top of a cylinder Timing is retarded when the spark occurs after the piston has started down in the cylinder Timing is changed by adjusting the ignition distributor To set timing the engine manufacturer provides timing marks on the engine s vibration damper Read the vehicle s manual or contact the manufacturer for the location of timing marks on the engine Also refer to the vehicle service manual or contact the manufacturer for the timing specifications for the particular engine When to Check Timing The instant that the spark plug fires is determined by the opening of the distributor ignition breaker points and will change any time the point gap or dwell angle is changed Normal wear on the breaker point rubbing block will change the dwell and effect the timing Most late model vehicles are equipped with bre2. 800 444 3353
3. different from those intended could result in a hazardous situation Service a Have the diagnostic tool serviced by a qualified repair person using only identical replacement parts This will ensure that the safety of the diagnostic tool is maintained Specific Safety Rules trigger does not turn it on and off di Maintain labels and nameplates on the tool These carry important safety information If unreadable or missing contact Harbor Freight Tools for a replacement Avoid unintentional starting Prepare to begin vvork before connecting the tool This product is not a toy Keep it out of reach of children People vvith pacemakers should consult their physician s before use Electromagnetic fields in close proximity to heart pacemaker could cause pacemaker interference or pacemaker failure Caution is necessary when near coil spark plug cables or distributor of running engine Engine should be off during distributor adjustment WARNING Handling the cord on this product will expose you to lead a chemical known to the State of California to cause cancer and birth defects or other reproductive harm Wash hands after handling California Health amp Safety Code 25249 5 et seq A SAVE THESE INSTRUCTIONS For technical questions please call 1 800 444 3353 Page 3 Operation Tips Timing Light Basics Automobile engines vvork by mixing air fuel and a spark to ignite the fuel air mixture
4. or for incidental contingent special or consequential damages arising from the use of our product Some states do not allovv the exclusion or limitation of incidental or consequential damages so the above limitation of exclusion may not apply to you THIS VVARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER VVARRANTIES EXPRESS OR IMPLIED INCLUDING THE VVARRANTIES OF MERCHANTABILITY AND FITNESS To take advantage of this vvarranty the product or part must be returned to us vvith transportation charges prepaid Proof of purchase date and an explanation of the complaint must accompany the merchandise If our inspection verifies the defect vve vvill either repair or replace the product at our election or vve may elect to refund the purchase price if vve cannot readily and quickly provide you with a replacement We will return repaired products at our expense but if we determine there is no defect or that the defect resulted from causes not within the scope of our warranty then you must bear the cost of returning the product This warranty gives you specific legal rights and you may also have other rights which vary from state to state Record Serial Number Here Note If product has no serial number record month and year of purchase instead Note Some parts are listed and shown for illustration purposes only and are not available individually as replacement parts CENT Ee Coe 3491 Mission Oaks Blvd st PO Box 6009 Camarillo CA 93011
5. the bolt or allow the distributor to move on its own 2 Start the engine and run until it reaches the standard operating temperature 3 Direct the beam from the Timing Light at the timing marks and slowly rotate the distributor in very small increments Rotate the distributor either right or left until the timing lines are lined up in line with the pointer See Figure 3 Stop the engine 5 Tighten the distributor lock down bolt using care not to change the position of the distributor 6 Start the engine and recheck the timing If the timing is incorrect the distributor may have moved while bolting it down Reset the timing 7 If you have no other tests to perform with the Timing Light turn off the engine and reconnect the vacuum line If you have further tests first check to see if the vacuum line needs to be connected for those tests 1 Many vehicles have two timing marks One at TDC and another at 10 before TDC Page 6 For technical questions please call 1 800 444 3353 Testing Centrifugal Advance 1 With the timing light still connected and the vacuum line still not attached speed the engine up slowly to the manufacturer s specified speed for this test often 2000 RPM and watch the timing mark 2 The timing mark should move steadily without jumping See Figure 3 Figure 3 Pointer Degree of Advance m Max Advance 3 Ifthe mark stays stationary or moves erratic
6. EMBLY DIAGRAM IN THIS MANUAL AS A REFERENCE TOOL ONLY NEITHER THE MANUFACTURER OR DISTRIBUTOR MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT HE OR SHE IS QUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT OR THAT HE OR SHE IS QUALIFIED TO REPLACE ANY PARTS OF THE PRODUCT IN FACT THE MANUFACTURER AND OR DISTRIBUTOR EXPRESSLY STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD BE UNDERTAKEN BY CERTIFIED AND LICENSED TECHNICIANS AND NOT BY THE BUYER THE BUYER ASSUMES ALL RISK AND LIABILITY ARISING OUT OF HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT OR REPLACEMENT PARTS THERETO OR ARISING OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTS THERETO Page 10 For technical questions please call 1 800 444 3353 Item 40963 Assembly Diagram Item 40963 For technical questions please call 1 800 444 3353 Page 11 Limited 90 Day VVarranty Harbor Freight Tools Co makes every effort to assure that its products meet high quality and durability standards and vvarrants to the original purchaser that this product is free from defects in materials and workmanship for the period of 90 days from the date of purchase This vvarranty does not apply to damage due directly or indirectly to misuse abuse negligence or accidents repairs or alterations outside our facilities criminal activity improper installation normal vvear and tear or to lack of maintenance VVe shall in no event be liable for death injuries to persons or property
7. Owner s Manual amp Safety Instructions Save This Manual Keep this manual for the safety warnings and precautions assembly operating inspection maintenance and cleaning procedures Write the product s serial number in the back of the manual near the assembly diagram or month and year of purchase if product has no number Keep this manual and the receipt in a safe and dry place for future reference m N de A a A TEM 40963 TIMING LIGHT _ Visit our website at http www harborfreight com Email our technical support at tech harborfreight com When unpacking make sure that the product is intact and undamaged If any parts are missing or broken please call 1 800 444 3353 as soon as possible AWARN ING Copyright 2007 by Harbor Freight Tools All rights reserved No portion of this manual or any artwork contained herein may be reproduced in Read this material before using this product any shape or form without the express written consent of Harbor Freight Tools Failure to do so can result in serious injury Diagrams within this manual may not be drawn proportionally Due to continuing SAVE THIS MANUAL improvements actual product may differ slightly from the product described herein Tools required for assembly and service may not be included Specifications 12 VDC Bulb AGA0374T SC Xenon Lead Length 0 to 60 in 2 Increments Important Safety Information 1 Work area safety b Use safety equipment Alway
8. akerless electronic ignition systems and will not allow a change in timing because there are no breaker points The Timing Light can still be used to note changes in the timing caused by problems in the ignition system or for resetting the timing when components are changed i e removed and or replaced ENGINE TIMING SETTINGS SPARK ADVANCED SPARK RETARDED BEFORE TOP DEAD CENTER AFTER T D C TD C T D C PLUG PISTON 9 CRANK SHAFT ROTATION PULLEY y TIMING MARKS ROTATION 4 T D C 7 ROTATION N Page 4 T A 3 CRANK POINTER For technical questions please call 1 800 444 3353 T D C PJROTATION Figure 1 Item 40963 Operating Instructions Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this document including all text under subheadings therein before set up or use of this product Note These general instructions will Timing Light Hook Up not apply to all engine designs and or vehicles Consult your engine manufacturer s service instructions which supersede these instructions 1 Locate the engine s timing mark by referring to the vehicle s engine manual or contacting the manufacturer Refer to the vehicle s manual or contact the manufacturer for the timing specifications of the engine being tested 2 Start the engine and run for 5 15 minutes until normal operating temperature is reached Stop engine Turn the Timing Advance Knob on t
9. ally the Centrifugal Advance or other automatic timing advances should be repaired by a certified mechanic 4 Turn the timing advance knob on the back of the timing light up slowly until the timing mark moves to TDC or 0 5 The reading on the timing advance scale indicates the amount of centrifugal advance Compare with vehicle service manual Item 40963 Testing Vacuum Advance 1 Speed the engine up slowly to the manufacturer s specified speed for this test often 2000 RPM and leave the vacuum line detached from the distributor 2 Aim the Timing Light at the timing marks and turn the timing advance knob on the back of the timing light up slowly until the timing mark moves to TDC or 0 3 Connect the vacuum line to the distributor 4 If the timing mark stays still the trouble could be a plugged line a leaky diaphragm or a frozen distributor plate See a certified mechanic if the mark doesn t move 5 Read the amount of vacuum advance from the timing marks on the engine Compare with vehicle service manual Checking Distributor Cam Wear 1 This test is done after the timing has been set and the timing light lines up with the reference pointer for cylinder number 1 Item 40963 For technical questions please call 1 800 444 3353 2 Connect the Timing Light to the spark plug wire directly opposite 180 from the number 1 cylinder on the distributor cap See Figure 4 4 Cylinder Opposite C
10. ght at the timing indicator pin of the front cover TRAILING LEADING Figure 6 4 Loosen the distributor locking nuts and rotate the leading side distributor body until the timing mark on the eccentric shaft pulley is in line with the timing indicator pin Tighten locking nuts and recheck timing 6 Repeat this process to set the trailing side distributor timing Page 8 For technical questions please call 1 800 444 3353 Item 40963 Maintenance and Servicing Procedures not specifically 3 To check the Lamp e pe must a Remove Rubber Sleeve 3 from e Per ormet ony 9y nozzle of the Timing Light a qualified technician AVVARNING TO PREVENT SERIOUS INJURY FROM SHOCK OR FIRE Disconnect from the vehicle battery before performing any inspection maintenance or cleaning procedures TO PREVENT SERIOUS INJURY FROM TOOL FAILURE Do not use damaged equipment If abnormal noise or vibration occurs have the problem corrected before further use 1 BEFORE EACH USE inspect general condition of tool Check for loose hardware misalignment or cracked or broken parts damaged electrical wiring b Remove the Bulb Cover 4 and any other condition that may affect its safe operation Bulb Cover 4 Rubber Sleeve 3 Xenon Bulb c The Xenon Bulb may develop a black spot around the anode this is normal 2 AFTER USE vvipe external surfaces If the bulb turns completely black of the tool with clean clo
11. he back of the timing light to 0 5 If the vehicle specifications and instructions require it locate the vacuum line that attaches to Figure 2 d hi the ignition distributor vacuum 9 advance and disconnect the 7 Start the engine and line and plug the end of it operate at idle speed A golf tee or small pencil may WARNING Be careful working around a be used to plug the line running engine Moving belts and fans Note The Spark Plug Clamp is fragile and can cause severe injury if contacted may break if dropped or struck sharply Metal engine parts are very hot 6 Connect the timing light to the 12 V Do not contact any part of the engine Battery and connect the Spark Plug 8 Squeeze the trigger on the timing light Clamp to the Spark Plug Wire as shown and direct the flash onto the engine The spark plug clamp must be timing marks to obtain a reading connected with the arrow on the clamp Compare the reading from the pointing towards the spark plug timing mark to the reading in the manufacturer s specifications If the timing does not match with the timing listed in the manufacturer s specifications adjust the timing Item 40963 For technical questions please call 1 800 444 3353 Page 5 Timing Adjustment 1 With the Engine stopped loosen the bolt that locks down the distributor but do not fully remove it It should be loose enough so that you can rotate the distributor back and forth Do not over loosen
12. s wear eye protection a Keep work area clean and well lit E Safety equipment such as Cluttered or dark areas invite accidents Keep children and bystanders avvay vvhile operating a diagnostic tool Distractions can cause you to lose control Electrical safety a Do not expose diagnostic tools to rain or vvet conditions Water entering a diagnostic tool will increase the risk of electric shock Do not abuse the cords Never use the cords for carrying pulling or unplugging the diagnostic tool Keep cords away from heat oil sharp edges or moving parts Damaged or entangled cords increase the risk of electric shock Personal safety a Stay alert watch what you are doing and use common sense when operating a diagnostic tool Do not use a diagnostic tool while you are tired or under the influence of drugs alcohol or medication A moment of inattention while operating diagnostic tools may result in serious personal injury For technical questions please call 1 800 444 3353 dust mask non skid safety shoes hard hat or hearing protection used for appropriate conditions will reduce personal injuries Avoid accidental starting Ensure the switch is in the off position before plugging in Carrying diagnostic tools with the finger on the switch or plugging in diagnostic tools that have the switch on invites accidents Do not overreach Keep proper footing and balance at all times This enables bet
13. ter control of the diagnostic tool in unexpected situations Dress properly Do not wear loose clothing or jewelry Keep hair clothing and gloves away from moving parts Loose clothes jewelry or long hair can be caught in moving parts Item 40963 Diagnostic tool use and care 5 a Item 40963 Do not force the diagnostic tool Use the correct diagnostic tool for the application The correct diagnostic tool will do the job better and safer at the rate for which it was designed Do not use the diagnostic tool if the Any diagnostic tool that cannot be controlled with the trigger is dangerous and must be repaired Store idle diagnostic tools out of the reach of children and do not 2 allow persons unfamiliar with the diagnostic tool or these instructions to operate the diagnostic tool Diagnostic tools are dangerous in the hands of untrained users 4 Maintain diagnostic tools Check for misalignment or binding of moving parts breakage of parts and any other condition that may affect the diagnostic tool s operation If damaged have the diagnostic tool repaired before use Many accidents are caused by poorly maintained diagnostic tools Use the diagnostic tool and accessories in accordance with these instructions and in the manner intended for the particular type of diagnostic tool taking into account the working conditions and the work to be performed Use of the diagnostic tool for operations
14. th however a new timing light is needed The bulb is permanently soldered in place and cannot be replaced Troubleshooting Possible Causes Likely Solutions No flash Switch in OFF position Move switch to ON position Battery clips connected Reverse the battery clip backward connections Poor connection of clips Clean battery post and reconnect No flash but Spark Plug Clamp flipped backwards 1 Make sure arrow on clamp double check points to 1 plug indicator is ON 2 Weak ignition or spark plug Connect to other plugs or spark plug wires Repair Gap Faulty lamp 3 Anew timing light is needed Light flashes Timing Light Spark Plug Clamp wire lying Route Spark Plug Clamp wire away intermittentl on or near to the other spark plug wires from the other spark plug wires Follow all safety precautions whenever diagnosing or servicing the tool Disconnect power supply before service Item 40963 For technical questions please call 1 800 444 3353 Page 9 Parts List Part Description Qty a Rubber Sieeve for a BulbCover r s fheas TT e Timing Advance kno KT e Jrear Cover fon o basce for a0 Tensonmesr fo Pt feta o Toa pra Riom foa as mor CS Internal Switch 1 15 Bord Cid tt Cd P16 cempe f 17 Cable Connector 1 18 Screw M3x10 5 PLEASE READ THE FOLLOWING CAREFULLY THE MANUFACTURER AND OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASS
15. ylinder 1 Cylinder 6 Cylinder Opposite 1 Cylinder Cylinder lt 6 O 1 8 Cylinder Opposite Cylinder 1 Cylinder Figure 4 Note The opposite cylinder is opposite the 1 Cylinder on Distributor Cap 3 Start the engine and aim the Timing Light towards the timing mark The reading should be the same as when the Timing Light was connected to the number 1 cylinder wire If not the probable cause is a worn out distributor cam bushing or bearing or bent distributor shaft Contact a qualified service technician for repairs Page 7 Small Engine Timing Rotary Engine Timing 1 The Timing Light can be used to 1 Connect the red and black power leads test the timing on any combustion to the battery Connect the Spark engine that utilizes an impulse or Plug Clamp to the wire for the leading magneto ignition such as motorcycles spark plug on the front rotor housing lawn mowers or outboard motors If the product does not have a 12 V battery then use an external battery 2 Connect a ground from the external battery s Negative Post to the engine 3 Connect the red clip of the Timing light to the Positive Terminal of the Battery and the black clip to the Negative Terminal of the Battery Connect the Spark Plug Clamp of the Timing Light to the spark plug wire with the arrow pointing towards the spark plug DIRECTION OF ROTATION Figure 5 2 Start engine and run it at idle speed 3 Aim the Timing Li
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