Re: Chevy 250 Cid engine problem..

Posted by Steve Crum on July 24, 2005 at 15:13:47 from (4.156.231.13):

In Reply to: Chevy 250 Cid engine problem.. posted by Mike Burdick on July 24, 2005 at 09:14:49:

We had an old 62 chevy 4WD pick up on the farm that had a 235 engine in it that did just about what you described. Several mechanics worked on it but nobody fixed it. Dad finally got tired of dumping money in it and parked it. A few years later, I put together a hot 235 engine in tech school for the truck and put it in it. Several years later I pulled the timing cover off the old engine and found the cam to be two teeth out of time. The cam gear had 2 teeth side by side that were missing the back half of the teeth. Our conclusion was something had gotten into the gear and broke one tooth which broke the other. This forced the cam out enough to loose oil psi momentarily, and the cam snapped back into position albeit, 2 teeth out of time. Oil psi returned to normal and one of the mechanics apparently thought he solved the 'ignition timing' problem by setting the distributor accordingly.
That engine ran rougher than a cob for obvious reasons, amazing it ran at all. I've never killed a chevy 6, but replaced the 292 in my Grandfather's 66' C-60 stakebody with a 427 and he got better gas mileage.

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