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Re: [alfa] Rear axle noise on high(est) mileage GTV6



Jeff,

FYI - I actually "consumed" a pinion bearing several years back... almost made it 430 miles to the repair shop in Austin under its own power, but it gave out about 60 miles short of the destination - much better than a 430 mile tow!

I've passed on your suggestions to my Alfa specialist so he can mull in over and do some checkin' on the car. I'll report back once the situation is resolved.

Mille grazie,
'nardo
500k or bu$t(ed) - gotta get back from the moon!
(but at 12-15k a year it's could be a while)
hope to see many of y'all in Seattle next year - w/the GTV6

Jeff Greenfield wrote:


Well, that was the first thing that came to mind.

It is pretty unusual for the CV joints or halfshafts to wear out, but I
suppose with the kind of mileage that you've got on the car anything is
possible as you are kind of in un-chartered territory.

There is also a carrier bearing for the stub-axle at the transaxle. Could be
those ...

Only other thing that I've seen once that took me forever to find, was a
lose race for the pinion bearing in the differential housing. Caused a high
pitched whine that changed with speed as I recall. Never saw it again, so I
don't know if this was a rare one-time occurrence or just that I haven't
seen or heard of any other failures of this nature.

Jeff

-----Original Message-----
From: B.D. Zelazny [mailto:[email protected]] Sent: Tuesday, December 14, 2004 9:45 PM
To: Jeff Greenfield
Cc: 'Alfa Digest'
Subject: Re: [alfa] Rear axle noise on high(est) mileage GTV6

Thanks for the advise, Jeff, but it's definitely not the wheel bearings -
BTDT many, many times (more accurately, my Alfa specialist has). Don't feel bad, you're the second reply indicating such.

It's the "short shafts" or "half-shafts" worn out from all my hard
cornerin'. My specialist replaced 'em w/used ones years ago (at about
300k) and it made it better, for a while. Since then, they've gotten
worse. Now I want to REALLY fix 'em.

'nardo
driver, NOT a mechanic

'83 GTV6 w/420k+ (s)miles
TX LP: 3M ZTA3

Jeff Greenfield wrote:



Most likely the rear wheel bearings. They are not terribly long lived ...
back in the days when these cars were (relatively) new, I could count on
them coming into the shop at 40,000 miles for a water pump and rear wheel
bearings.

Replacement is not too difficult, provided you have the proper tools and
things aren't too rusty. In the proper tools department, you need the
special socket for the bearing retainers, a very large air impact wrench,
and either the special alfa tool for removing/installing the bearings.
Also, oxy-acetylene torches will help greatly most times.

Wheel bearings should be readily available from any of your favorite Alfa
parts suppliers, or locally through any better parts stores that know
European stuff. The bearings fit many other applications (VW/Audi/Saab,
etc).

You will also need replacement retainers.

HTH,

Jeff

-----Original Message-----
From: [email protected] On Behalf Of B.D. Zelazny
Sent: Tuesday, December 14, 2004 7:12 PM
To: Alfa Digest
Subject: [alfa] Rear axle noise on high(est) mileage GTV6
Happy holidays to all!!

My '83 GTV6 has a "cyclical" noise in the rear wheel areas on whichever
side that's takin' the load when I corner - the faster I corner, the louder it gets. I've never seen/heard of another GTV6 w/this problem,
>>but then how many GTV6s are there with 420k (s)miles on them? I believe
>>the noise is caused by the worn splined short shafts and the female
>>receptacle (for use of a better term) they mate with to drive the rear
>>wheels.
Can this be repaired or would they need to be replaced?

If they can be repaired, how?

If they need to be replaced is there a source for either new or very low
mileage components to replace the worn ones with?

Grazie in avanzamento,
'nardo - Alpine, TX
83 GTV6 - currently being repaired in Austin, TX
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