wopfe

Hi Guys, i noticed a pretty heavy wobble around 100 km/h at the right front wheel yesterday. Took it to a tire shop to check the wheels, turns out is is not the wheel
Did anybody had this amount of movement before? Anybody an idea this is fixable with a "simple" overhaul of the steering rack?

icsamerica

Probably just inner tie rods.

If your budget allows and the rack is leaking I would just do a new rack with bushings, tie rods inner and outer and be done with it. Really helps with the feel of the car. Fresh fluid and a pressure hose also would be good too.

Mrmerlin

What ICS said plus you will need new rack boots and 4 banjo sealing washers they might come with the rack.
2 choices 928 INTL or 928sRus for a fresh rebuilt rack.
either one should provide a long term repair

mkhargrove

that's pretty serious wiggle. pull the boot back and you will be able to see what's going on with the inner ball joint on the tie rods. with that much movement, i would suspect that it's a combination of both end of the tie rods and a little play in the steering rack........

one question...did you try up and down movement? if you have up and down movement, it could be that the problem is created by wear in the wheel bearings....i think

wopfe

Thanks for the feedback! I pulled the boot back and made another movie: curious what you think, but it looks to me that the balljoint is the biggest problem?

icsamerica

That's an inner tie rod BTW. Great sound too !

wopfe

Euhm inner tierod (my english is pretty Dutch i am afraid) Anyone an idea what caused this? The fact that its 41 years old?

icsamerica

Your rhythm is good though. It is a ball and socket type joint but generally spealking in common parlance... "ball joints" connect the spindle to the upper and lower control arms. Anything associated with steering control is considered a "tie rod" no matter what type of connection technology is used.

mkhargrove

yeah, i think it's pretty obvious where the issue is. i'm glad that you were able to get it figured out!

wopfe

Thanks everybody!

worf928

Yeah, and the fact that its only lubrication is ATF leaking past the rack seals. It’s a dry ball joint. 50% or more of 928s I see for the first time need at least one.

wopfe

When was working on a replacing the tie rods, i noticed the steering rack is leaking quite a bit, so it took it out...Just started reading how to refurbish that ..While i am going to do refurbish the whole setup i understand its smart too also replace the "Steering Rack Bushings". Just saw it would cost about 240 euro's for 4(!). I see 928International also has a alternative plastic that is much cheaper...Anybody has an idea if that is also a good alternative for keeping to rising costs down?

ROG100

My rebuilt racks are $465 plus shipping. My racks come with new delrin rack bushes.

FredR

Owners have taken on rebuilding the racks but it is a pretty ambitious [foolish?] thing to do. I have a set of seals to do this that I got from Carl at 928 Motorsports- the kit alone is enough to put one off when you see the numbers of items in it!

If you do go down that route do keep us informed how you get on. Whilst at it replace the mounting bushes as well- I have a set of Roger's Delin bushes in my rack.

Replacing the inner tie rods is a relatively easy task- hardest part is getting the boot back on - do that at full lock as I recall and it is [relatively] easy to get a new one back on.

Schocki

Buy a rebuilt rack and check other components on the front suspension too. Since you are in Rotterdam, you can get a rebuilt rack easily. Shipping from the US for a 10 kg plus item is a killer. Plus you need to ship your old one back to be rebuilt. These guys here: https://www.lenkgetriebe.net/ have our steering rack in stock (most of the time). The rack is being shipped from the rebuilder in Spain (WAT) directly to you.

I'm always stunned how long and with what kind of worn out components people still drive around. The car's handling must be horrible and the play in the steering enormous.