imported post
Working on a 1100 we just purchased not running. Compression is great - mechanically the timing is perfect (cams and crank are perfect). No fire other than occasional backfire. Put a timing light on the #1 cylinder and the spark is occuring about 30 degrees before TDC. I moved the light to the other 3 plug wires to make sure the wiring wasn't wrong - but none of them lined up so the wiring looks fine.
I ohmed out all the electrical - even the pulse generator. Everything is working great - just firing at the wrong time. I tried manually advancing the vacuum advance with a vacuum pump - but it can't make up 30 degrees.
Has anyone had the pulse generator go bad in this fashion? Is it possible to install it in the wrong position on the motor?
Working on a 1100 we just purchased not running. Compression is great - mechanically the timing is perfect (cams and crank are perfect). No fire other than occasional backfire. Put a timing light on the #1 cylinder and the spark is occuring about 30 degrees before TDC. I moved the light to the other 3 plug wires to make sure the wiring wasn't wrong - but none of them lined up so the wiring looks fine.
I ohmed out all the electrical - even the pulse generator. Everything is working great - just firing at the wrong time. I tried manually advancing the vacuum advance with a vacuum pump - but it can't make up 30 degrees.
Has anyone had the pulse generator go bad in this fashion? Is it possible to install it in the wrong position on the motor?