a4sfed928

I installed a new front shifter ball cup and it is loose and sloppy. I measured 18.25mm diameter on the front ball and it shows no signs of wear. I have the torque tube out of the car so there was no damage from installation. I seem to remember another thread like this but I couldn't find it. Is this normal?

Garth S

I've found them to be very tight when installed .... and it takes a fair bit of force to fit the cup/plastic insert over the ball, even when well greased. I've just refreshed the identical parts on the C4S ( similar shifter set-up on the torque tube), and used a floor jack to pop the cup on the ball.
The correct insert ( for the cup) is 928 116 145 03 IIRC.

Bus

Mine got loose after a couple of months from replacement also (actually, the cup started to slip up off the insert). I had installed a huge zip tie around the tube and shaft as a backup... but then I replaced it with a hose clamp and drew it down until it was snug... won't allow the movement, and shifter is precise!

John Veninger

The ball cup will wear out prematurely if the zip tie or hose clamp is on to tight. The plastic cup will start cracking. The zip tie it just there to prevent the rod from popping off.

If the cup went on tight, then your issue is with the rear coupler.

a4sfed928

I installed the new cup with the torque tube out of the car so I know it was fully seated. I pushed it down straight with a C-clamp and after installation I can grab just the ball socket and rattle it on the ball. There is no way you could pull it off by hand but it is loose. Could I have a mislabeled part which fits a different model with a 19mm ball?

Jim bailey - 928 International

the use of the clutch arm bushing 928 as a replacement for the plastic liner for the forward shift angular Joint linner was NEVER a Porsche approved substitution but the result of someone looking at the two parts and deciding that they "look about the same" different color plastic but close. In measuring several ***** on the central tubes they measure about 18.5 on some cheap calipers the clutch ball on the bellhousing is a strong 19 mm. So my conclusion is they are NOT THE SAME just close...You can sometimes find cheaper ways of doing things but quite frankly it is often very tough to do it BETTER than what Porsche designed. And I have no idea if black plastic is the same as white plastic in terms of hardness, material ,wear ?

Rod Underwood

Jim, you have a PM..
Rod

a4sfed928

Jim
I did not use a clutch bushing but after reading my inital post I can see where you would think so. I purchased the 928.424.005.01 Angular Joint. I have had it laying aroung for quite some time (over a year) I know this sounds strange but could it have dried out and shrank? The old one had no plastic left in it and the new one has a black cup in it. I looked at some photos of other failed angular joints in arcives and noticed they had white/tan plastic in them and this is why I wondering if there could be a part mix up.

Jim bailey - 928 International

The shift angular joint is the metal cup with an adjustment stud and a captive plastic socket bushing there is no Porsche replacement plastic bushing for this part . So the angular joint with bushing costs like $80 while the clutch arm bushing is only about $15 which is the motivation to "Mc Givver" it. Let's see the original correct part lasted 15-20 years but it FAILED ... a couple tiewraps a similar looking bushing ... pantyhose and Good to go !

a4sfed928

Jim,
Did you not read.....I purchased the 80.00 part!

a4sfed928

If I would have so called "McGivered" the thing I could accept a little extra slop for saving 65.00. Instead I went the proper route and now I’m trying to find out why I did not get proper results.

Jim bailey - 928 International

No I did NOT read your post since it happened while I was preparing posting my post . But to answer your question there is ONLY ONE front angular joint and a very slight amount of play is acceptable. The rear shift coupler has a bit of a slot designed for a bit of front to back play as well. Perhaps a throw back to when the shifter bearing bracket was bolted to the body (1978) rather than the torque tube.

a4sfed928

So they do have some play when newly installed. Maybe I'm over reacting to the acceptable amount of play.

John Veninger

Hey, don't let everyone in on the pantyhose trick!

Jim bailey - 928 International

obtaining the pantyhose is perhaps the most fun part of the exercise !