E92 Quaife Diff thunk problem found.. HELP i need Bearings

rambino · 01-03-2008, 01:26 AM

So my quaife diff went in and the dealership botched the install..

heres the letter i got from Kevin Bird about what they found..

We have stripped your differential and inspected it.
We believe that the bearings have been damaged during dissassembly. It seems that the installer used Fox Wedges or similar to part the bearings from the old differential, as there are visible marks on the old differential. Although it is not entirely clear how such damage could be caused by using this technique, the consequence is that the bearing on one side has overheated. This indicates that something was damaged or some foreign material got into the bearing at some point.

We also noticed that the pinion nut has been used to support the removal of the prop. shaft nut. It is not the correct procedure, and can cause the pinion bearings to become incorrectly loaded. We will examine the position further once we have decided what the repair should be.

We will try to find replacement bearings, but I have to tell you that last time we looked, we couldn't find a supplier!

The alternative would be to supply a complete final drive, which costs £1,014 in the UK.

Sorry this is bad news, but at least the problem is identified.

Regards, Kevin Bird."

Can anyone help with where i could get these bearings???

roadkillrob · 01-03-2008, 07:52 AM

If your dealer screwed up, let them fix it and buy you a new final drive or find the bearings themselves!

O-cha · 01-03-2008, 04:59 PM

+1 how exactly did you find out there was a problem. What were the symptoms.

ArmyBimmerDude · 01-03-2008, 05:01 PM

Quote:

Originally Posted by O-cha

+1 how exactly did you find out there was a problem. What were the symptoms.

He made a thread regarding noise and clunking after the LSD install

By the way +2. They fuck it up, they pay for it. GL

O-cha · 01-03-2008, 05:08 PM

Quote:

Originally Posted by ArmyBimmerDude

He made a thread regarding noise and clunking after the LSD install

By the way +2. They fuck it up, they pay for it. GL

I thought clunking was indicative of the diff not be seated right. Wouldnt a bad bearing make something more like a whining sound?

SCCAForums.com · 01-03-2008, 05:19 PM

Good Luck getting a dealer to pay for installing 'customer supplied parts'... very hard to do.

Bummer, and Kevin's language doesn't seem to say 100% that the dealer did it... just that they clearly Identified the problem. Sorry to hear!

Dave

John 070 · 01-03-2008, 05:59 PM

Quote:

Originally Posted by SCCAForums.com

Good Luck getting a dealer to pay for installing 'customer supplied parts'... very hard to do.

Bummer, and Kevin's language doesn't seem to say 100% that the dealer did it... just that they clearly Identified the problem. Sorry to hear!

Dave

That BS burns me up.....I had a Volvo in another life that had a fuel injection problem. The towing co. that AAA sent, towed the vehicle on the rear wheels in excess of 75 mph. When the shade tree mechanic looked at the vehicle for the starting problem, he said I had worse problems, my tranny was burnt up, and asked how they towed it, was it on the rear wheels?

Volvo is RWD, it should have been on the fronts, had dollies if the front was lifted, or best, on a flatbed. I fought AAA and they said they're not paying for anything as the tow co. did nothing wrong.

The only thing I could think of was to get even. I called the tow co. directly, said I need a tow back to his garage, and please bring a flatbed. I'm sure they saw $$$ in their eyes. When the flatbed arrived, I said oh, by the way, I have AAA Plus. We're going to Vermont. The driver's eyes lit up like he had something shoved up his you know what. AAA Plus provided free towing up to 100 miles at the time. We rode that flatbed 91 miles to Rutland, and he went back to NYS empty. (I actually had a shop/salvage yard fix everything @ $24/hour with used parts)

stressdoc · 01-03-2008, 06:58 PM

This is why my SA had to decline to install mine. He said that there was no source for the bearings or shims. They looked into it pretty thoroughly. Hopefully the situation is better in Euro. I would highly recommend that you pm Brett at KMS.

judec · 01-03-2008, 08:21 PM

heh, one more reason to get it installed by Birds... sorry to hear about your problem. I hope U get it fixed soon.

01-03-2008, 01:26 AM	#1
rambino M Master 74 Rep 551 Posts Drives: M6 / X6M Join Date: Jun 2007 Location: SoCal / Florida iTrader: (3)	E92 Quaife Diff thunk problem found.. HELP i need Bearings So my quaife diff went in and the dealership botched the install.. heres the letter i got from Kevin Bird about what they found.. We have stripped your differential and inspected it. We believe that the bearings have been damaged during dissassembly. It seems that the installer used Fox Wedges or similar to part the bearings from the old differential, as there are visible marks on the old differential. Although it is not entirely clear how such damage could be caused by using this technique, the consequence is that the bearing on one side has overheated. This indicates that something was damaged or some foreign material got into the bearing at some point. We also noticed that the pinion nut has been used to support the removal of the prop. shaft nut. It is not the correct procedure, and can cause the pinion bearings to become incorrectly loaded. We will examine the position further once we have decided what the repair should be. We will try to find replacement bearings, but I have to tell you that last time we looked, we couldn't find a supplier! The alternative would be to supply a complete final drive, which costs £1,014 in the UK. Sorry this is bad news, but at least the problem is identified. Regards, Kevin Bird." Can anyone help with where i could get these bearings???
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01-03-2008, 07:52 AM	#2
roadkillrob Major General 866 Rep 5,451 Posts Drives: 08 335i,22 X3M, 2012 C63 Black Join Date: Jul 2007 Location: Boston iTrader: (15)	If your dealer screwed up, let them fix it and buy you a new final drive or find the bearings themselves!
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01-03-2008, 04:59 PM	#3
O-cha Brigadier General 218 Rep 4,726 Posts Drives: Mcoupe Join Date: Oct 2007 Location: In front of you iTrader: (2)	+1 how exactly did you find out there was a problem. What were the symptoms. __________________
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01-03-2008, 05:19 PM	#6
SCCAForums.com Captain 39 Rep 726 Posts Drives: Race Cars Join Date: Dec 2007 Location: Chandler, AZ iTrader: (2)	Good Luck getting a dealer to pay for installing 'customer supplied parts'... very hard to do. Bummer, and Kevin's language doesn't seem to say 100% that the dealer did it... just that they clearly Identified the problem. Sorry to hear! Dave __________________ 2010 ZR1 3ZR Wht/Blk 10.7 @ 132 2011 C63 AMG P31 Car Blk/Blk 11.8 @ 117 2010 Nissan GT-R 10.8 @ 129 (Sold) 2008 Lexus IS-F (Sold) 12.5 @ 113 / 2008 Shelby GT500 (Sold) 11.3 @ 126 2008 e90 M3 6MT 12.8 @ 111 (Sold) / 2006 e60 M5 12.4 @ 114 (Sold)
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01-03-2008, 06:58 PM	#8
stressdoc Moderator 618 Rep 10,855 Posts Drives: BMW i8; Toy 4runner TRD pro Join Date: Jun 2005 Location: Waco TX iTrader: (0)	This is why my SA had to decline to install mine. He said that there was no source for the bearings or shims. They looked into it pretty thoroughly. Hopefully the situation is better in Euro. I would highly recommend that you pm Brett at KMS. __________________ My recent ED photos: http://f80.bimmerpost.com/forums/sho....php?t=1026808 my not-so-recent ED: http://www.e90post.com/forums/showthread.php?t=31829 Please join BMWCCA http://bmwcca.org/index.php?pageid=c...&ref_by=300279
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01-03-2008, 08:21 PM	#9
judec born to be turbocharged 24 Rep 1,347 Posts Drives: Not a bimmer yet Join Date: May 2007 Location: Slovakia iTrader: (0)	heh, one more reason to get it installed by Birds... sorry to hear about your problem. I hope U get it fixed soon. __________________ Disclaimer: All this message was written with recycled electrons.
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