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Mountain Road Maniac
 
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Join Date: Aug 2007
Location: Durango, Colorado
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Finally figured it out

Thanks to the guys on on this forum, JohnAZ for sending the article on rear suspension ELEPHANT RACING Tech Topic, Polyurethane Bushings and Friction .
It turns out, after going through all the PO's records, he had Weltmeister poly-graphite bushings installed -inner/outer spring plate- and they are most definitely the source of the noise in the rear end. I like the way the car handles , but the noise has got to go! Is there anyway to make these things shut up , or do I have to bite the bullet and replace them with rubber?

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Steve
'83 944
'87 951- SOLD!
Old 11-23-2009, 10:58 AM
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wear ear plugs. no more noises

is there a grease fitting installed?
Old 11-23-2009, 11:09 AM
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i had delrin bushings in there, which are typically far quieter than polyurethane (graphite laden or not) - however, they made a racket no matter how much i lubed them - i tried them dry, with lithium, moly, and generic grease - no luck

i then changed to the elephant racing poly/bronze bushings - these are designed to stay lubed - they are grooved for the grease and have a grease fitting, and are shimmed to fit - MUCH better - i do still have one small squeak i am trying to track down on the driver's side, but i don't think it's those bushings - i have taken them apart and refitted them twice with no change - it sounds more metallic than those would make anyway, and it's pretty small, and only on the one side
Old 11-23-2009, 11:22 AM
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Mountain Road Maniac
 
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Ear plugs are fine and I can always crank the stereo up high... noise is still there, though. No grease fittings. I am considering the poly/bronze, not cheap, arrrrgh
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'83 944
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Old 11-23-2009, 11:41 AM
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Mountain Road Maniac
 
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How difficult a job is just replacing the bushings? Not going to mess with the torsion bars if possible...
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'83 944
'87 951- SOLD!
Old 11-23-2009, 12:40 PM
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Quote:
Originally Posted by ColoradoSteve View Post
Not going to mess with the torsion bars if possible...
Removing spring plates? Of course you are!

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Old 11-23-2009, 01:33 PM
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Mountain Road Maniac
 
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I want my mommy....
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'83 944
'87 951- SOLD!
Old 11-23-2009, 04:15 PM
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Your mommy can't help you now, boy.
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» 1980 931 - Got boost? ♦ 1987 924S - Pro44 ♦ 1987 924S - Junkyard score «

"DETERMINATION. Sometimes cars test us to make sure we're worthy. Fix it." - alfadoc
Old 11-23-2009, 04:48 PM
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yup - probably better living with it until you're ready to make spring rate changes - no point in doing that job twice
Old 11-23-2009, 04:59 PM
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I'm actually starting to like the sound of death metal . totally drowns out those F*****g bushings!
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'83 944
'87 951- SOLD!
Old 11-23-2009, 07:41 PM
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lol - did too many metal tours - can't listen to it now

Old 11-23-2009, 08:07 PM
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