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Posted by Gordon Maney [208.126.138.206] on Monday, November 01, 2010 at 15:15:32 :
In Reply to: Damper diameter. posted by ChrisCase [76.212.213.65] on Monday, November 01, 2010 at 14:47:13 :
I remember using that method in the 70's. If I could discern motion there, any slack, I thought it was bad, and would reject a chain.
The best, or worst, example I can recall was a 1973 Chevy car with a 350. Most of the time it ran great and some of thee time it ran horribly. The bad times were typically during test drives. I fail to mention, this was a used car on our lot.
I did this very test several times and got no lash, deciding the chain was fine. I think it had 20,xxx miles. New enough the chain should have been good.
This car haunted me because I was the one who got the first job on it, so when it came back, it came back to me. We had a first birthday party for that car, the only one we had ever seen. The car was on the lot for a year.
One day it started running badly and continued to run badly.
I removed timing cover to replace the chain as a last ditch effort. It was one of the aluminum sprockets with plastic teeth. The teeth were all gone.
After removing the intake manifold, I found all the teeth littered across the valley.
I hate plastic sprockets.
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