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1982 928S
Join Date: Oct 2010
Location: Las Vegas, NV
Posts: 207
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RE: bearing sound
Hi guys, iam back after a short vacation to calif. i took my car for a drive yesterday
and i heard a a sound like bearing sound from the rear drivers side, could that be a bearing or axle going bad, one of the boots on the axle is torn, could that be the problem. thanks in advance. Ed. |
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10-16-2011, 04:11 PM
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Registered User
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Wheel bearings usually start to growl when going bad. They will also change tone when weight is shifted side to side. CV joint usually get loose and "clunk". If the boot is torn all the grease has probably all flown out so it may make a noise. If they aren't bad they will be soon.. address the boot and check for play asap
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1979 928 85 Euro 2v motor,S4 Brakes and suspension, 1988 951 street legal track car(sold) Neon SRT4 track car |
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10-16-2011, 05:24 PM
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Moderator
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As Pete says, check play on the CV's. Safely, jack up the rear with the rear wheels off the ground and in Neutral. Make sure you put some Jack Stands under there and/or some old rims. Safety First! With the wheel free, you can grab the rear axle and see if there is any play, if not, move to the wheel and see if there is play there, if so, wheel bearing.
It seems as if most PO's never change the CV Boots and they crack, but with the centrifugal force, the grease is more than likely right up against the CV Joint and ok. The problem with torn boots, they introduce dirt/sand which will eventually break down the bearings. I think on my next CV job, I will just buy a pre-packed rebuilt one as it some serious dirty work.
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1981 Porsche 928 "Euro" Auto Gunsmoke Metallic Flat - Black Interior 1983 Porsche 928S "US" Auto Light Bronze (Copper) Metallic - Brown Interior **SOLD** 
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10-16-2011, 06:14 PM
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1988 Porsche 951
