We have used multiple timing lights to check the accuracy of our dyno timing light. We use the French-Grimes light which requires 12v to power it. It appears to be as good as anything available. The real reason for the question is more based upon cylinder pressure changing the observed...
We have checked multiple timing lights and found that it is not uncommon to see 1 degree variation. Let me add another twist: We had a customers engine that he had assembled. After he had adjusted the valve lash, he left an adjuster loose. We began to perform a timing loop to determine the...
The question came up at work: Does the timing light flash as the current passes through the inductive pick up or does it flash as the current jumps to ground via the spark plug? We set timing at WOT at 6000 rpm fully loaded on the dyno. We set individual cylinders to read the same as cylinder...
