Quote:
Originally Posted by The_big_dill
I know the fundamentals of the operation of the engine.
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When you are referring to "spark jumping", do you mean if a spark is present when the cylinder reaches TDC?
Do you want me to check for spark while turning manually and when i feel compression? (See if it sparks on compression stroke)
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Take no offense; I was trying to make a visual representation that the proper TDC around which the spark should jump between the plug's electrodes.
You will not feel compression as the spark plug should be out and the cams should be visible to observe each timing.
That was the next test that occurred to me if leakage cannot be verified, just in case such dramatic change in behavior is due to an accidental non-congruence between the sparks and valves times.