suspension question

[colin944]

Ok have rebuilt ball joints got a 968cs arb with poly bushes new struts ( standard) and standard springs. I get a twang type noise from the front end during tight turns. Sounds like a spring binding then letting go. or could be tension in the arb. Ive checked the top mounts, they are good and nearly new. Are the sided and can I have put then on the wrong side? or has anyione had a similar noise its driving me mad rest of suspension is all good and new. Any idea's ?????

 

[944 man]

968 Club Sport and Sport models were lower. I will guess that it you replace the 968 ARB with the original part, that the creaking will stop.

 

[edh]

I can help you out colin and send you my s2 arb as a swap for your cs one []

The top mounts - theres a small locating peg which I think means they only fit one way.

Is there anything catching? Brake hose, abs sensor wire?

 

[colin944]

I've the got the top mounts in with the peg located properly. I just wondered if they were sided ie passenger and driver side ?

 

[edh]

ORIGINAL: colin944

I've the got the top mounts in with the peg located properly. I just wondered if they were sided ie passenger and driver side ?

I hope not...[]

better check PET - I bet there's only one part number

 

[edh]

only one part - 951 343 018 04 (951 343 018 030 is m030 option)

 

[colin944]

I'm just not understanding this .... I can't work out why they are binding. The springs don't have an up and a down do they ?

 

[Paul 290T]

Check the ARB drop links. When i had one snap it made sound when cornered.

 

[colin944]

I've just ordered new drop link bushes. the ones on the arms as they are the only part of the front suspension that hasn't been changed.It's a loud twang noise. Sounds like the roll bat going under tension and poping back or the springs being rotated and getting stuck and then releasing.

 

[ChasR]

Maybe I have the wrong idea, but assuming you do not have to corner too hard in order to make the noise you could always remove the ARB and see if the noise goes away.

I suggest that since in my experience ARB bushes and bits being gone tend to rattle and knock, but there are no hard and fast rules.

 

[colin944]

Will try with arb off tomorrow. If that doesn't do it then I'm stuck for ideas. I may have to take it to a specialist suspension guy to get it fixed.

 

[colin944]

Where's Jon Mitchel when you need him. He's too far away to go and see.

 

[kdp]

Although the springs are located correctly in their seats it could be that one of them jumps out of its seat due to the twisting of the spring (worn seat?)when you turn sharply - hence the twang and reseats itself again once in the straight ahead position.

 

[edh]

Springs will move with the strut and top seat so there shouldn't be any resistance to the rotation of that whole assembly. Something odd going on between spring seat & top mount? Seems unlikely as that's a pretty simple setup compared to the early top mounts.

 

[colin944]

Didn't get a chance over the weekend to have a look. Will get it on a four post ramp this weekend and turn the steering from side to side. That will let me see what's going on. I think it's probably a top mount, but they are both new and seem to be fine. However the spring sounds like its twisting in its mount. So only looking and changing the top mounts will tell me if I'm right. I'll let you know what happens.