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914World.com _ 914World Garage _ rear shock failure or spring failure?

Posted by: opera guy Feb 24 2005, 01:22 AM

i have a question regarding rear spring/shock.

after i park my car, i get out, and pull up on the rear wheel well, the body will come up about 2 inches, and stay up there, until i push it down, or sit back in the car. is this a case of faulty springs, or faulty shocks? both? should i stick a chopstick in the rear strut somehow and find out?

thanks in advance

Posted by: redshift Feb 24 2005, 05:13 AM

Shocks.

2 inches? Come on!

M

Posted by: MecGen Feb 24 2005, 05:55 AM

Hello
The springs are the deciding factor for ride hieght,
You mght have a stuck shock. Take one side appart and see
Cheers
Joe

Posted by: groot Feb 24 2005, 06:18 AM

Probably a bent shaft on that shock..... Poor rear suspension design with regards to shock binding during suspension travel.....

Posted by: Jeroen Feb 24 2005, 08:28 AM

[hijack]
Hey Kevin,
You mentioned this earlier.
Do you think some kind of monoball setup for the rear top shock mount would fix this
(like the ones Tangerine Racing sells)
Or is the bottom mount causing problems as well?
[/hijack]

Posted by: groot Feb 24 2005, 09:05 AM

Hyjack reply....

Personally I think one needs to create additional degrees of freedom at the bottom first. If you only do it at the top, there still is a bending moment on the shock and you're asking that rubber bushing at the bottom to accomodate the misalignment, creating a bending moment. Ideally, one would replace the bottom bushing with a spherical bearing. A bearing at the top is a good idea, too.

I feel pretty strongly about this modification and it's importance in the grand scheme of getting a suspension to do its thing.

Posted by: Dave_Darling Feb 24 2005, 11:37 AM

Back on-topic--
Another possibility if you have aftermarket bushings on the rear trailing arms: The bushings are binding up, not letting the trailing arm swing up and down. Seen it on more than one car...

--DD