broken shocks

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Fenvy
Posts: 5052
Joined: Thu Jan 29, 2004 9:30 am
Car: 2005 350Z Base 6MT

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I have had my kyb agx for about 6 months now

lately I been getting this annoying squeak whenever I go over bumps, especially emphasis over speed bumps. Even rocking the car up and down on the trunk will produce the sound.

I found out that both rubber bushing on the rear shocks, where it mounts to the RLCA (I think this is where it mounts to?) is torn.

So I drive it some more and now when center of gravity is shifted away from the rear (for instance, going down hills), I can feel I don't get as much traction and instead, the rear suspension makes clinking like noise and I can feel the vibration.

Is something like this fixable? is it possible to push in another bushing? I would have to have them sent back to kyb for repair.'

Anyone have experience with koni yellow on s13?


The Mic
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Joined: Sat Dec 21, 2002 6:33 am
Car: 3Z Wmb
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Replace your rod cone bushings.

There are some symptoms to make you want to check the cone bushings. Some of them are difficult to sense just as with worn shock absorbers- the real difference is only felt when they are replaced.

Perceptible Symptoms:

1) A squeaking when the suspension is at long travel such as when going over a speed bump at slow speeds.

2)A clunking knock, with matching feedback through the steering wheel when turning at slow speeds with the steering at full lock, particularly when on a dirt or gravel surface.

3) Eventually when the suspension is in a long-travel situation, the squeak will turn into a clunk like hitting a solid chunk of wood with a mallet. When you hear the squeak it is time to check the cone bushings.

The squeak is the rubber against the control arm. It happens because the rubber is worn, compressed, and worn; or in your case, torn. As soon as it begins to move (causing the squeak) its wear will rapidly increase causing poor handling, uneven breaking, accelerated tire wear, and can eventually lead to a very unsafe and even dangerous situation.

Since yours are already torn, I would consider replacing them. When you have the opportunity, put the car up on a lift and perform a bushing inspection before you buy replacements.

PSA: Always inspect the bushings before rebuilding your suspension setup.

Here are some bushing kits for your amusement.

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Fenvy
Posts: 5052
Joined: Thu Jan 29, 2004 9:30 am
Car: 2005 350Z Base 6MT

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thanks for the reply and your information

The hyperflex kit you linked me does not contain this peice according to their description of the ad:Quote »HYPER-FLEX SYSTEM Complete Master Bushing Set- w/ 27mm front & 16mm rear sway bar bushings Includes: Front control arm bushings, front strut rod bushings, front and rear sway bar bushings, tie rod end boots.[/quote]I think what I am looking for now is "Rear Strut Rod Bushing Set" or "Performance Polyurethane Shock Eyes" Anyone know the ES part number for that?

Lastly, I am unfamilar with "rod cone bushings" I did a search on yahoo and did not find what I am looking for. Can you be so kind to tell me what that is?

The Mic
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Ah, I forgot to include a word in my post. its "Control(Radius) Rod Cone Bushings". And yes, you are looking for a "strut rod bushing kit."

p.s. that Hyperflex system is designed for the s14, not the s13. The one I referred to is the Tanabe underneath the Hyperflex.

Modified by S13GUY at 11:44 AM 1/29/2005
Modified by S13GUY at 11:56 AM 1/29/2005

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Fenvy
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Joined: Thu Jan 29, 2004 9:30 am
Car: 2005 350Z Base 6MT

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what is Control(Radius) Rod Cone Bushings?

I did a quick scan of my service manual for the rear suspsnsion section and didn't find that

The Mic
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Joined: Sat Dec 21, 2002 6:33 am
Car: 3Z Wmb
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just replace the visible torn bushings.


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