front control arm bushings

[inaminit]

Hello- The most recent issue of Excellence has an article about the RS America model from 93-94. The article discusses several things to watch out for on these cars. It mentions worn control arm bushings causing a vibration above 40. Sounds familiar,although my car is a 90. So I looked in the parts Katalog-but couldn't find a part designated "control arm". So-what part is it? Do MY90 cars have them? Thanks in advance.

[Bill Verburg]

Originally Posted by inaminit

Hello- The most recent issue of Excellence has an article about the RS America model from 93-94. The article discusses several things to watch out for on these cars. It mentions worn control arm bushings causing a vibration above 40. Sounds familiar,although my car is a 90. So I looked in the parts Katalog-but couldn't find a part designated "control arm". So-what part is it? Do MY90 cars have them? Thanks in advance.

964 has front A-arms which connect the bottom of the shock/strut to the chassis, oem there are 2 different hardness bushes used, one soft and one softer. RS used one hard and one soft.

I replaced the bushes on my 993 which has a very similar front suspension w/ bushes from Elephant Racing, the offer 2 different hardness of rubber bushes so you can emulate the RS w/ a hard and soft one or use 2 soft ones or 2 hard aka sport ones. I used to Sport hardness ones on each side.

Bushes in the bags




Bushes installed in the A arms


A arms installed in the car

[inaminit]

Thank you Bill! It looks like you just unbolt the control arm. Do the bushings need to be pressed out, or will they come out easily? Is there a written proceedure anywhere? Thanks

[deekay911]

You have to press them out, or be prepared to spend some hours with a hammer a chisel. Do a search on Rennlist for Walrod bushings - they are made for 993 but might fit 964 also.

[superuser]

Originally Posted by deekay911

You have to press them out, or be prepared to spend some hours with a hammer a chisel. Do a search on Rennlist for Walrod bushings - they are made for 993 but might fit 964 also.

I have Chris's bushings on my 964 and they are working out nicely.

[gaaz911]

Bill,

how freely do the conrtol arm move once torqued up, I have just fitted powerflex and torqued the bolts to 110 nm & 85 however there is a bit of resistance in the arm I assume this will loosen up with a bit of road use hopefully

[Bill Verburg]

Originally Posted by gaaz911

Bill,

how freely do the conrtol arm move once torqued up, I have just fitted powerflex and torqued the bolts to 110 nm & 85 however there is a bit of resistance in the arm I assume this will loosen up with a bit of road use hopefully

W/o any connection to the strut the A arm should move freely when p/u bushes are installed.

One of the issues w/ p/u is wear from lack of lubrication and misalignment, once worn they are sloppy and make noise

[creaturecat]

Thanks for the info. Bill.
Which of the bushings(front or back) is softer with the RS set-up?

[Bill Verburg]

Originally Posted by creaturecat

Thanks for the info. Bill.
Which of the bushings(front or back) is softer with the RS set-up?

On an RS the leading ones are soft and the trailing ones are harder

[creaturecat]

thank you, sir.