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2013-2015 Range Rover MkIII / L322
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Discussion Starter #1
Just had Blackstone Labs analyze my oil and it was a good report. Just wondering if this analysis could be used to tell you timing chain tensioners are failing. Anybody know how it would show up in the analysis or would it?

Thanks,



2012 RR-180924 copy.jpg
 

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You'd see some sparkles in the oil, too, from the tensioner beating its way thru the back of the guide. That's not magnetic of course so can't use magnet to collect the bits. more relevant, the bits are too big to show up on blackstone's equipment.

btw I found the most definitive proof was, sometime when it starts and the slapping is particularly loud, stop right away (engine off) and pull the oil fill cap, then use a right-angle pick and see if the timing chain is loose, or taught like a guitar string.

I did the same blackstone report and mine was clean too... in the middle of replacing the tensioners/rails now. wish me luck.
 

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Discussion Starter #4
MPH, would love to hear how your project goes. What vehicle are you doing this on?
 
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