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Oil pump drive bolt failure

posted by  Art Benstein on  Mon Apr 15 06:53 CST 2013
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last visit: Fri Oct 17 20:10 CST 2014
[RELATED]

Hi Mike,

If I read you right, you are saying a photo is not enough to tell how the bolt started its life in service. Someone needs to check the hardness and know how the bolt was used. I wonder if that hardness check is a quick and easy scratch test at a machine shop? I'll post back if Mick has any more info, but I thank you for your term "vibratory life." I thought about those words when using non-impact (chrome plated) sockets instead of the black ones with a rattle gun. Are the black ones softer? Built for vibratory life so they don't shatter?
--
Art Benstein near Baltimore

What engineers say and what they mean by it:
"The entire concept will have to be abandoned"
The only guy who understood the thing quit.






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