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04-07-2021, 02:08 AM | #221 | |
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04-11-2021, 04:15 PM | #222 |
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Yes tight clearances means the load is spread more, which means the same bearing can handle a higher load, which may well be why BMW choose the clearances they did.
But tight clearances also needs thinner oil and smaller tolerances, and more rigid components (as it said in that video), but clearly something went wrong with at least one of these factors. And seeing as they choose one of the thickest grade oils for road cars combined with tight clearances, that's a major red flag.
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Oil analysis for finding wearing rod bearings?. Collation of oil analysis reports with some rod bearing photos for the M3's S65. My categorisation of pulled rod bearings in the rod bearing condition thread. My updated 'Blown engines' list. |
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04-11-2021, 06:17 PM | #223 |
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You got a new engine?
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04-11-2021, 08:06 PM | #224 | |
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2011 E92 M3 - 6MT, ZCP, ZF LSD, ESS G1, Some other goodies... |
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04-11-2021, 10:05 PM | #225 |
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Next UOA do TAN too. You want TAN with Easter oils.
SIlicone is not an issue in Redline. They pack Silicon in it. I have seen values up to 30ppm. |
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04-15-2021, 01:22 PM | #226 |
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Well this is odd, I can't read p12 of this thread...
Stranger still, this ended up on p11! Deleted post I guess.
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Oil analysis for finding wearing rod bearings?. Collation of oil analysis reports with some rod bearing photos for the M3's S65. My categorisation of pulled rod bearings in the rod bearing condition thread. My updated 'Blown engines' list. |
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04-15-2021, 03:34 PM | #227 |
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04-16-2021, 01:40 PM | #228 |
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Glad it's not just me then! lol
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Oil analysis for finding wearing rod bearings?. Collation of oil analysis reports with some rod bearing photos for the M3's S65. My categorisation of pulled rod bearings in the rod bearing condition thread. My updated 'Blown engines' list. |
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