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04-11-2020, 08:46 PM | #1 |
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Pinned Crank Hub Failure - Installation Error or Possible design issue?
See link: https://f80.bimmerpost.com/forums/sh...1&postcount=80
Basically the guy’s tuner said that the Maxpsi CH had a major fail. He said “The issue was at the pin site it was actually backing itself out, and the oil cog I believe had a bunch of premature wear.” Now is this one of those rare pinned hub failures due to installation error? Or possible design issue? Not trying to throw shade at the MPSI CH, but just concerned as I’m going to look for a solid fix in the near future. |
04-11-2020, 09:06 PM | #2 |
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This has always been one of my concerns if I ever went down this path. You get a crank up fix done and something goes bang afterwards.
How will you ever know if the fix actually failed or the installation wasn't done correctly and you are left to cover all the damage and two parties blaming each other.
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Mineral White | Black Leather | DCT Last edited by Ghosn; 04-11-2020 at 09:13 PM.. |
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04-11-2020, 09:20 PM | #4 |
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04-11-2020, 09:26 PM | #5 | |
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I use to have vtt v1 with the bolt capture on my car and I just recently pulled out and went for insane performance crank hub and I use vtt bolt capture on the ip crank hub |
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04-11-2020, 09:52 PM | #6 | |
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04-11-2020, 09:52 PM | #7 |
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The central bolt backing out is known to happen on other manufacturers also. For the sake of a 100 bucks why the fuck wouldn't you install it if just paid ~3k for a upgraded hub.
Just blows me away sometimes. Each to their own I guess. It is great that the poster clarified his statements otherwise we would have had another 50 pages of speculation. https://www.bimmerpost.com/forums/sh...php?p=26037427 /rant
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04-11-2020, 09:55 PM | #8 | ||
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04-11-2020, 10:12 PM | #9 |
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04-11-2020, 10:18 PM | #10 |
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Drives: 2022 Taycan GTS, 2018 M4, 2016
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I heard v2 will dig into the crank pretty bad. not sure its true of not. but i am probably change to v2 soon if not going to a build engine...
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Chris@VargasTurboTech1949.00 Ferchoo3.00 |
04-11-2020, 10:24 PM | #11 |
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04-11-2020, 10:38 PM | #12 |
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Chris@VargasTurboTech1949.00 |
04-11-2020, 10:49 PM | #13 |
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Chris@VargasTurboTech1949.00 |
04-12-2020, 09:30 AM | #14 |
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Exactly how do you presume adding a pinned hub would stop the bolt from becoming loose?
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04-12-2020, 12:33 PM | #15 |
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It’s not what I believe, as I already have a CBC installed, but it’s what people have said when installing the pinned designed hub from what I read on the forum. If I were to ever do a complete fix, I would always add the CBC.
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04-12-2020, 12:49 PM | #16 |
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The central screw will always be able to loosen. It is not so common with keyed solutions because for something to be damaged, the length of the key would have to be loosened, in addition, those who assemble these solutions always tend to tighten the central screw with more torque than the original screw. The cbc will always help or even completely stop the screw from loosening. In my opinion, if it is not to modify the car with turbos, the cbc is a good initial bet. Anyway if I switched to a key solution, I would always put cbc for security, always.
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04-14-2020, 06:24 AM | #19 | |
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Last edited by TheMaster1971NL; 04-22-2020 at 05:11 AM.. |
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04-15-2020, 02:04 PM | #21 |
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Should always fit the CBC either in isolation or in conjunction with an aftermarket hub. Plenty of fanboys seem to hate on the CBC without apparent reason. Bottom line is the CBC is an effective way of preventing backing out of the central screw only, period. Given there have been plenty of examples of hub failures where upon strip down the central screw has been found to be finger tight, I suggest it is mandatory to have a CBC installed when running even a stage 1 tune. Of course the hub can still slip internally via friction disc failure, that is where the an aftermarket one piece hub comes into play.
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M2C_OZ212.50 |
04-16-2020, 01:32 PM | #22 |
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