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Old 01-23-2019, 10:52 AM   #1
Ken/Alabama
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Default Cam Bearings

Is it a bad idea to reuse cam bearings? Removed a set from my V12 and they are in good condition , probably less than 2K miles on them. New ones are available, just pricey.
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Old 01-23-2019, 11:59 AM   #2
Kurt in NJ
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Default Re: Cam Bearings

I have reused rod bearings, main bearings with over 300000 miles on Mercedes engines and had good results, but I looked close with magnifying glass for embedded debris, , much depends on the failure that caused removal of the bearings, with cam bearings the removal process, installation can damage them, perhaps the interference fit may be compromised by removing and installing--- if the fit is good, the clearance is good and there are no embedded debris go for it, if it doesn't come out good you can always spend for new
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Old 01-23-2019, 03:46 PM   #3
Ol' Ron
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Default Re: Cam Bearings

The cam bearings are the best lubricated bearing in the engine. AS for new bearings, I've recieved word from a few builders that the bearing sizes are no good, one was ,006 under. Measure the cam and bearings if the clearance is under .003 uz them
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Old 01-23-2019, 04:54 PM   #4
51 MERC-CT
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Default Re: Cam Bearings

Won't the clearance depend on whether measured as installed in engine?
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Old 01-24-2019, 08:51 AM   #5
Ol' Ron
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Default Re: Cam Bearings

The only way to measure the cam bearings is: in the block,as they are a press fit. I use a snap gauge, takes alittle practice.
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Old 01-24-2019, 08:57 AM   #6
JSeery
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Default Re: Cam Bearings

Quote:
Originally Posted by Ol' Ron View Post
I use a snap gauge, takes a little practice.
That's a fact!
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