87 4k CSQ tranny bad at 67k miles?

[Dupree, Jim]

I doubt the trans is the problem, I have only seen 1 fail and it was due to
lack of oil. I don't know where you are at but if it comes to it I have a
used 85 4kq trans at home (N. California).


Thanks
Jim

 -----Original Message-----
From: 	Robert ExperimentalError [mailto:porter_dog at hotmail.com]
Sent:	Thursday, October 10, 2002 5:32 PM
To:	dupree at alldata.com; quattro at audifans.com
Subject:	RE: 87 4k CSQ tranny bad at 67k miles?


  That's a _really_ good idea, but I get the noise even when the propshaft
isn't spinning (park brake on).  I wanted it to be the driveshaft or support

bearing (considerably easier to deal with) but I don't think I can wish hard

enough to make it reality.
Robert

>From: "Dupree, Jim" <dupree at alldata.com>
>To: "'Robert ExperimentalError'" <porter_dog at hotmail.com>,
>quattro at audifans.com
>Subject: RE: 87 4k CSQ tranny bad at 67k miles?
>Date: Thu, 10 Oct 2002 16:41:37 -0700
>
>I had a very similar situation. Noise and vibration most prominent in trans
>near output flange for the rear axle. I could not (that I recall) feel the
>vibration in the pedal though. I assumed it was bearings in the trans but
>wanted to eliminate other possibilities. I removed the propshaft to the
>rear
>axle and locked the center diff. Car drove fine with no noise or vibration.
>The front CV joint on the propshaft was totally worn out (had water in it).
>I replaced the front CV joint, replaced the center support bearing,
>repacked
>the center u-joint and repacked the rear CV joint. I have had no problems
>since. One nice thing was that I could drive the car with the center diff
>locked and the propshaft in my garage. It gave me all the time I needed to
>work on the propshaft, plus all the procrastination time I wanted as well.
>I
>probably drove for 6 months in two wheel drive.
>
>Thanks
>Jim
>
>  -----Original Message-----
>From: 	Robert ExperimentalError [mailto:porter_dog at hotmail.com]
>Sent:	Thursday, October 10, 2002 3:09 PM
>To:	quattro at audifans.com
>Subject:	87 4k CSQ tranny bad at 67k miles?
>
>
>Hiya, new guy here, liked the 86 4kQ beater I bought last December so much
>I
>shopped for and bought a nicer one, an 87 with only 67k miles on it.  Ever
>since I've had it though there's been a bit of a vibration from the front
>end at speed- you can feel it in the gas pedal.  It's gotten worse, winter
>is coming, time to address the problem...
>
>   I originally thought it was the wheel bearing, but the noise is not
>sensitive to sawing the wheel back and forth at speed (slalom-like).  Last
>night I put it up securely on jackstands and let it idle in 5th.  I then
>used a stethoscope to try and pinpoint the noise, but was unable to do so
>(I
>could hear the noise with near equal clarity at every point I listened to).
>It _seemed_ to be worst at the propshaft exit.  It's not the wheel
>bearings.
>
>   Tranny lube is fresh and there's plenty of it.  There's no sign of
>leakage
>from the transmission or the CV joints, but the heatshield which should
>protect the inner CV on the passenger side from the downpipe heat is
>missing.
>
>   Tires are all the same and in very good condition.
>
>   I spoke with Steve at German Transaxle and he said that the pinion
>bearings go bad in these transmissions, but not usually so early.  He also
>said it could be the "4 point bearing" (?) which supports the end of the
>mainshaft.  $2030 for a reman unit with a 2 year warrantee or 'about $1k'
>plus freight to fix this one.  Ouch.
>
>   A guy on the audiworld forum suggested that it could be CV related, had
>a
>hard time believing that the trans would be bad at such low mileage, and
>suggested I try this list.
>
>    If you've any thoughts on diagnosis, alternate failures which could be
>causing this noise, or a trustworthy transmission shop in the Detroit area,
>I'd be very grateful to hear about it.
>
>   Thanks for your time and the bandwidth,
>Robert Mangas
>
>
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