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Hope someone can point me in the right direction. First is the background. Engine locally rebuilt 10/16 with about 1200 miles on it. Stock rebuild including 2150 carb rebuilt. New cto sensors and such. New starter, battery and cables, all new vacuum hoses routed properly. Always starts right away and when warm only 1 to 2 seconds on starter and is running fine.
I drove it to work and everything was normal. Went to go home and would crank and run several seconds then quit. After much cranking would start and quit. It wouldn't fire off until I left off key, but then not start. Backfired out the exhaust twice. Trailered it home. I put timing light on coil wire and would not light until I left off key.
So I bought Echlin ignition control module from NAPA and starts right up and runs like it always has. Drove it a bit, no problems. Fast forward a week decided to drive it some. Started and ran fine. After 20 minutes shut off. No rough idle spit and sputter, just off. Now a lot of cranking I got it started but running rough, drove home and it wanted to shut off. Had to 2 foot it. Still shut off. Now trying to crank it, it was a little slow to turn over a couple of times, Like timing was too far advanced. Got it to run but was rough, then smoothed out but still wanted to stall close to idle. Put timing light on coil wire and lighting up like it should. Checked timing with advanced plugged and was right at 12 advanced. Idled for 20 minutes, no problem.
So what would you check next? How do I check the coil? Don't want to just throw parts at it and it magically runs without me really knowing what was the real issue is. Sorry for the long post but hopefully all the info points us in the right direction. Thanks
I drove it to work and everything was normal. Went to go home and would crank and run several seconds then quit. After much cranking would start and quit. It wouldn't fire off until I left off key, but then not start. Backfired out the exhaust twice. Trailered it home. I put timing light on coil wire and would not light until I left off key.
So I bought Echlin ignition control module from NAPA and starts right up and runs like it always has. Drove it a bit, no problems. Fast forward a week decided to drive it some. Started and ran fine. After 20 minutes shut off. No rough idle spit and sputter, just off. Now a lot of cranking I got it started but running rough, drove home and it wanted to shut off. Had to 2 foot it. Still shut off. Now trying to crank it, it was a little slow to turn over a couple of times, Like timing was too far advanced. Got it to run but was rough, then smoothed out but still wanted to stall close to idle. Put timing light on coil wire and lighting up like it should. Checked timing with advanced plugged and was right at 12 advanced. Idled for 20 minutes, no problem.
So what would you check next? How do I check the coil? Don't want to just throw parts at it and it magically runs without me really knowing what was the real issue is. Sorry for the long post but hopefully all the info points us in the right direction. Thanks
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