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drive shaft came apart in the center!
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07-15-2009, 02:26 PM | #1 |
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drive shaft came apart in the center!
so, for the last 3 weeks or so I had been hearing a minor knocking noise from the underside of my car, sounded like it was coming from the drive shaft but I didn't think that was very plausible, especially since I just installed my bmw perf. ssk w/ the shifter lever, so i figured it was something having to do w/ that.
2 weeks ago i went for some 'mexico' runs w/ a few guys & the day before the runs the knocking noise had gotten a bit worse but i wasn't too worried cuz i had heard a lot about these runs & was willing to risk my car for the thrill of a good race, haha, stupid, i know but oh well, i did it anyway. long story short, my car felt like shit out there & i was getting beat pretty bad by cars i should've definitely at least kept up with if not beaten & on the very last run my car felt like it was going to explode, the noise was incredibly loud & the car just felt terrible, the c63 i was running against said he could see my head lights jumping up & down like i was going over speed bumps & he knew something was wrong.. so, i took it in to bmw to have it looked at & come to find out, my original un-plausible thought was correct, it wasn't the ssk at all. the bolts that hold the "guibo joint" of the drive shaft together came out. when the noise was minimal, the bolt was just loose & after doing a few pulls at 150mph+ the bolt wiggled out & was just sitting on the plastic heat shield. this is an unlikely situation but just wanted to give the community warning incase anybody ever hears a knocking noise coming from the drive shaft area of their car..& if anybody has their clutch replaced you might want to double check with them & make sure the guibo joint is properly secured & torqued to spec..
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Last edited by nlakind; 07-15-2009 at 05:06 PM.. |
07-15-2009, 02:27 PM | #2 |
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This could be a driveshaft install issue from when they dropped your transmission.
Match marks must be used on 2 piece driveshafts and re-assembled back the same exact way. Bolts must be properly torqued or sometimes even replaced.
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07-15-2009, 02:31 PM | #3 | |
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Was it the guibo or the center bearing, two completely different things. There is no such thing as a "center" guibo, there is just a guibo and a center bearing, which should not be refered to as a guibo unless you had a complete monkey working on your car.
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07-15-2009, 02:33 PM | #4 |
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Because he recently just had an ACT clutch installed. The transmission obviously was removed for that along with the propeller shaft.
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07-15-2009, 02:33 PM | #5 | |
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I agree with Malek. I bet it has to do when they installed the clutch.
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07-15-2009, 02:42 PM | #6 | |
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07-15-2009, 02:43 PM | #7 |
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& this was my assumption as well, but again, wanted to give warning because more & more ppl will start replacing clutches so this is possible to happen again
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07-15-2009, 02:46 PM | #8 | |
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This wouldn't happen if the shop properly does the install. This can happen to any car, especially those with 2 piece driveshafts. This isn't isolated to these cars only.
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07-15-2009, 03:42 PM | #9 |
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no no, i get that! let me have a re-do, lol. i came to the 335 from owning 2 evo's previously & in the 4g63 community, the evo community in particular(for me), i never would've posted this because what you just responded w/ would be common knowledge & i feel a lot more ppl would've known how to diagnose the issue but i can say that i've seen some incredibly ignorant posts on here & i wanted to give a heads up to ppl who might not be as educated in drive shafts or how cars work, what is done when a clutch is replaced, etc..i just wanted to educate ppl if they were ever having this issue & would help them to know where to look if they went to a southbay autohaus for ex.
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Last edited by nlakind; 07-15-2009 at 03:59 PM.. |
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07-15-2009, 04:47 PM | #11 | |
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07-15-2009, 04:53 PM | #12 |
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Ah, well you guys seem to know more about the OP then me then, my bad as I don't pay much attention anymore.
But on the topic at hand the guibo uses self locking nuts that are supposed to be replaced when removed, even so, 90% of the time they are not replaced, nor is it an issue unless you take them on and off over and over again. Like a lot (but not all) of the replace when removed components they are simply replaced because they would need to be if removed and reinstalled many times and there's no realistic way to keep track so they are just called to be replaced every time. Anyway, the torque for those suckers is something like 120nm and whoever did it probably did not torque them down enough or possibly replaced a/the nuts with a different nut, or stripped/cross threaded one without realizing and the list goes on. One thing is for certain though, someone Fed up and it's not something that would have happened otherwise. (and that someone includes you for driving, much more so racing, with such an obvious problem)
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07-15-2009, 05:03 PM | #13 |
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as stated in my OP, i am well aware that driving w/ the knock wasn't a good idea. but thank you for reiterating something i already stated.
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07-15-2009, 08:29 PM | #16 | |
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You, Mario and I should chill by the way!
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07-15-2009, 09:41 PM | #17 |
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no worries man, i get it..& yea, anytime!!! i think i'm gunna organize another beverly hills to neptunes net meet/cruise/cyn run soon!!!
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07-15-2009, 09:44 PM | #18 |
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Sounds dope.. I'll be there!
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07-16-2009, 12:11 AM | #19 |
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Looks like he was missing some required safety equipment for the drag strip, notably drive shaft loops!
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07-16-2009, 07:07 AM | #20 |
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Belated: Thanks for the warning, man.
Glad the car was not too badly damaged in the process.
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