Rebuilt engine, bent push rods?

73DusterPunk said

Sorry, you're gonna have to explain what "kick back" means. I wouldn't be surprised if they did, as a lot of the original parts were of the mixed material type. The timing and all are still dead on, and I know the cam was replaced with an rv cam, but the shop should have adjusted everything to within a very close degree. The engine cranks, just won't fire like there's no spark; I've already verified both fuel and spark though.

Click to expand...

gasoline engines in general have a tendancy to kick back in the opposite direction of normal run sometimes. especially when hot and after being run a long time.....and those with lower compression ratios. haven't you ever started a lawn mower and had it kind snatch the starter rope outta your hand? if not, you ain't cut enough grass. when an engine kicks back, it's NOT a non-violent event and if it has a nylon lined camshaft gear, it can rip off every single tooth and jump cam timing. In fact, I've even witnessed a small block run backwards in on of these kick back fits. really very strange. what actually happens if they do it badly is, they run on the heat in the combustion chamber. nothin you can do about it but wait for it to stop. it's called dieseling. most people don't realize an engine is actually running backwards when it diesels, but it does. if it only does it for an instant, instead of trying to continue to run, that's when it can rip the cam gear up.