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WTF bearing fretting

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Not just compression, leakdown too. When you pump air into the cylinder(s), listen at the Throttle Body (intake valve leak), the Exhaust pipe (exhaust valve leak) , and if you can at the dipstick (compression ring leak).


I don't know about Comp Turbo's qualifications.


I used Diamond Diesel in Oakland, CA for two rebuilds without issue. Well, except on the most recent rebuild they painted the exhaust housing and removed the OE intake plate to affix their own. Then again, I didn't specify "what not to touch".


Call Dave at Precision about your pump.

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Thanks for your valuable input. What’s the full name for Precision? Location?


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Precision Automotive Research




Dave Redszus Sr.


or David Redszus, PHd.



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