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03-16-2023, 07:50 PM | #2774 |
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Had my 2010 E90 M3 rod bearings serviced by MWorks in Cincinnati. 70k miles. Looks to be about perfect timing.
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03-17-2023, 11:44 AM | #2775 |
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2008 E92 M3
65k mi Work done at Bavarian Specialties. Great shop to work with. Blackstone report was unremarkable, but the top shells were looking rough. |
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03-17-2023, 09:09 PM | #2776 |
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Good job and thanks for posting. My thoughts are, if those are original OEM beaeings from the factory, then you’re a lucky man. The German bearing lottery is a game of tolerance stack up and yours just maybe on the looser side of the tolerance stack up window. Hence, the bearings look pretty good for that much mileage in an S65.
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03-19-2023, 06:34 AM | #2777 |
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Photos are rather dark, are the top shells showing copper?
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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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04-04-2023, 08:22 PM | #2778 |
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102000 miles, MY 2008. Need to check on my Blackstone reports; they were all clean, but don't recall if I did them for the past couple oil changes; don't drive it much for the past couple years. Car was lightly tracked in its most recent history. Ran the car with 0W40 for most of the past 40k miles, but upped to OEM weight for the last change, when it was tracked. Always drive it easy until warmed up. Shop says crank looks fine. It is notable that I bought it used, so can't speak for its first ~60k miles.
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04-05-2023, 10:42 AM | #2780 | |
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Quote:
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04-05-2023, 08:14 PM | #2782 |
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2013 57k. Looks worn.
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04-05-2023, 09:03 PM | #2783 |
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2013 e93 with 50k miles. Replaced with BE Bearings Std and Arp bolts. Only thing notable was the "dots" of something embedding in several bearings. No issues as crankshaft was perfect.
Also did engine mounts and slon Vanos covers. Feeling pretty good for 100k before anything else major. Already did breather valve. Tracking ICV and throttle actuators as next possible issues.
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04-08-2023, 12:25 PM | #2784 |
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04-08-2023, 07:29 PM | #2785 | ||
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Quote:
Ooo no4 has a nasty score! The crank alright there? Quote:
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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. Last edited by Assimilator1; 04-08-2023 at 07:35 PM.. |
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04-10-2023, 09:45 AM | #2786 | |
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Thanks for posting the photos. I still numerous cars on BAT and elsewhere without the rod bearings having being changed. As my Belgium friend says ///M Power-Belgium "it's a German lottery" but as the miles pile on, it's more of a time bomb IMO. What brand of bearings did you go with for replacements?
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Last edited by DrFerry; 04-10-2023 at 09:53 AM.. |
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04-10-2023, 09:54 AM | #2787 | |
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///M Power-Belgium68556.00 |
04-10-2023, 05:28 PM | #2789 |
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The switchover was gradual from 2010 through 2011. But yes, recent results suggest earlier = worse. The earlier ones regularly wear to the point of showing copper, whereas I'm pretty sure we still haven't seen a single set of the newer bearings where that has unambiguously happened. They do discolor, but the discoloration is superficial.
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DrFerry6748.00 Assimilator1615.50 |
04-10-2023, 06:41 PM | #2790 | |
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Did BE Bearings with ARP bolts. Actually bought them a long time ago and they just sat on the office shelf. |
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04-10-2023, 06:58 PM | #2791 | |
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///M Power-Belgium68556.00 |
04-10-2023, 10:16 PM | #2792 |
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They do. Deansbimmer and Assimilator1 confirmed this (close-up pics and sanding through the top layer, respectively). Not in the mood to find the links RN but the posts are in this thread. The original source for the “no copper” idea — the bearing Wiki — has been amended accordingly.
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04-11-2023, 07:06 AM | #2793 | |
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Updated: Found it. You were right: . http://wiki.rcollins.org/core/index....2F703_Bearings .
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Last edited by DrFerry; 04-11-2023 at 07:14 AM.. |
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04-11-2023, 02:40 PM | #2794 | |
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This is my post about it, where I rubbed down one of Helmsman's shells.
And here and here are a couple of posts by Deasbimmer on the tin/alu/copper bearings (and the lead/copper type). Quote:
There is physical wear happening to those bearings, not just deposition of (say) carbon on the shells, the shells micro grooves are often seen to have be worn, or even completely smoothed out. As can be seen in the 3rd and 4th photos in Deansbimmer post here and by these excellent quality photos by Ximian (the lower ones).
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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. Last edited by Assimilator1; 04-11-2023 at 03:01 PM.. |
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