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Old 09-09-2019, 11:19 PM
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andrewwynn andrewwynn is offline
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Join Date: Jun 2015
Location: Racine, WI
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Boroscope through the oil cap is exactly how to look at the chain guides. You can see the main pressure guide right inside the hole.

If you only have tiny pieces my question is: have you replaced the main tensioner and part b did you use OEM?

My research shows lack of replacing the tensioner is the primary cause of chain guides fail on M62.

A buddy of mine's M62 sounded a lot like yours my advice was to drive a different car and order OEM chain tensioner immediately.

He installed the new one and heard the diesel sounding chain clank for about 7 seconds until oil pressure built up in the tensioner and now it sounds new. No clank no diesel knock sound.


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