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Troubleshooting

Fault

Possible Causes

Solution

No Flash

1.  Battery clamps are reversed.

2.  Poor connection of battery clamps.

1.  Swap the clamps over.

2.  Make sure the clamp connections are clean

1.  Inductive pick-up wire lying too 

close to the other spark plug wires.

1.  Move the pick-up wire away from the  

other wires.

Light Flashes 

Intermittently

Timing Adjustment

PLEASE NOTE: Before adjusting the timing, the

“dwell angle” or “gap” should be adjusted on

vehicles fitted with contact breaker points.

1.  Check manufacturers specifications for correct-

timing for engine being serviced.

2.  Loosen the distributor clamp bolt so that the-

distributor can be rotated in either direction.

3.  Locate engine timing mark and use a rag to-

clean all grease and dirt from the mark and 

the pointer. It may help to use chalk or white 

paint on the mark to make it more easily seen.

4.  Start and run the engine until normal operat-

ing temperature is reached. Approximately 15 

minutes and then stop engine.

5.  Start the engine and operate at normal idle 

speed, aiming the timing light towards the  

timing mark.

6.  Trigger the timing light and observe the  

reading from the timing mark.

7.  Compare the reading obtained with the  

manufacturers specifications. If the timing is 

not as specified, slowly rotate the distributor 

slightly to obtain a correct reading.

8.  Stop the engine.

9.  Tighten the distributor clamp bolt.

10. Restart and check the timing.

11. If it is the correct reading, stop the engine and 

reconnect the vacuum hose.

3

Summary of Contents for 555-40750

Page 1: ...Digital Inductive Timing Light User Guide 555 40750 9 16 Volt ...

Page 2: ...op Dead Center When the timing is retarded the spark occurs after the piston has started to go down in the cylinder 1 T D C T D C T D C Pulley Timing Marks Pointer Before Top Dead Center B T D C Figure 01 T D C A D C Top Dead Center After Dead Center Introduction Contents 1 For checking and setting ignition timing on automotive agricultural and marine engines 2 For use on 9 16 volt systems 3 Rever...

Page 3: ...low descriptions 1 Clamp the inductive pick up around the No 1 Spark Plug wire Make sure the arrow on it is facing towards the spark plug Do not allow the inductive pick up to touch the exhaust manifold or surrounding parts as these areas become extremely hot and will damage the inductive pick up 2 Connect the RED clamp to the positive battery terminal 3 Connect the BLACK clamp to a secure engine ...

Page 4: ...rotated in either direction 3 Locate engine timing mark and use a rag to clean all grease and dirt from the mark and the pointer It may help to use chalk or white paint on the mark to make it more easily seen 4 Start and run the engine until normal operat ing temperature is reached Approximately 15 minutes and then stop engine 5 Start the engine and operate at normal idle speed aiming the timing l...

Page 5: ... and unauthorized persons away from the working area 9 Always store the timing light in a safe dry and child proof location when not in use 10 Always run the engine in well ventilated areas 11 Always remember that a flashing timing light freezes rotating components Do not be tempted to touch an apparently stationary component which is in fact rotating 12 Never use the timing light if it is damaged...

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