heinrich

Would someone who knows S4 auto trannies please help me out?

I need the ***generic parts list*** for a trans recondition including generic bearing part numbers please :-)

torque converter bearing
torque tube bearings
trans service kit (i know, just being complete)
trans seal kit

Anything else?

byrdman454

H,
I am in the middle of this right now. Here is some info. I will get the rest to you after I get home from work.

TC shaft bearings: 6008-2RS1TN9/C4HGJN (SKF bearing)
My quote through KAMAN was more than buying them through 928 Specialists, so I ordered them form Jeannie.

TT bearings: 6006 ZZ C5 HT51 (SKF bearing)
This is a major pain in the butt trying to find. They are no longer available anywhere. The C5 tolerance has not been made in forever. Everyone I talked with is ordering part number 60062ZJEM. This is a SKF bearing. Best price I found is through KAMAN for $16.68 each. The entire part number on the bearing is 6006 ZZ C3 GJN. This is the bearing that will come when ordering p/n 60062ZJEM. The C3 tolerance is tighter and the GJN grease replaces the HT51.

Trans service kit is cheapest through 928 INTL, @ $35.00. It is OEM for the Mercedes tranny.

I have the other seal p/n's at home. Just got done buying them. I am also replacing the oil pump seals. I do not want to mess with replacement again...

byrdman454

Here is the rest:
AT Main Pump Gasket 126.271.128.0 1X
AT Main Pump Sealing Ring 126.272.095.5 2X
AT Oil Pump Seal-large 016.997.144.8 1X
AT Oil Pump Seal-Small 018.997.044.7 1X
AT Transmission Filter Kit 960.307.901.01 (928 INTL) 1X
AT TC Drain Seal 900.123.033.20 1X
Transaxle Drain Plug Seal 900.123.118.30.OEM 1X
AT Drain Plug Seal 900.123.062.30

Tom928

Quick question - are the AT pump seals/gaskets difficult to replace?

Jim bailey - 928 International

Once you have the trans on the ground it is simple just be sure the torque convertor drops ALL the way back into place...

killav

Hey H.

I just called one of our local bearing suppliers (Motion Industries) and they also could not find the C5 tolerance bearing from any of their suppliers. Just thought I would give it a shot.

heinrich

MIKE:
thank you sir!!!!!!!! exactly what I needed.

Killa:
Thanks for looking Dude

928 Intl:
Thank you guys for sharing info so freely and selflessly in the phone

heinrich

Mike, the sleeves for the shaft bearings ... yager?

BC

This has been alluded to previously. I am using NTN bearings, and some have a looser feel then others. I would think tighter is okay.

jon928se

I think we found some NSK bearings in C4 in NZ when we did Eric (Dragon) s '85 TT last year.

C5 has approx 3x the radial internal clearance of C3.
The larger internal clearance is normally used to allow for differential temperatures between inner and outer races or bearings pressed onto shafts or into rigid housings causing distortion of the bearing races.

In the TT in a 928, I don't think either of those circumstances apply -the bearing inner and outer will sit at roughly the same temp. and the bearing is not pressed into or onto anything rigid enough to distort it.

So I can't figure out why they used C5 but I'm not a bearing specialist. At worst using a bearing with a closer radial tolerance could lead to a shorter bearing life. But beggars can't be choosers - if C3 is all you can get at least the bearings are new - just need to be changed more often.

byrdman454

H,
I would try and use the stock inserts if they can be removed without damage. This is what people normally do. The last one we just did for my Dad, the bushings got F'ed up during removal. I ordered one from Jager, but it got lost in the mail. Canada Post is horrible.

The 944 guys were doing a run of these bushings out of delrin, same as Jager. The design for this bushing is on www.clarks-garage.com. This is a 944 site. Be aware, this design and the 944 group buy is for the 25mm shaft. If you have a '89 newer, you will need the larger ones. If this is the case, I think the only option you have is Jager. Not sure anyone has made any for the larger shaft.

Hope this helps.

byrdman454

The part numbers I listed earlier were for the '91 tranny I am putting into my '88. YMMV!

I wanted the 2.54 gear ratio. I also got my TC stall increased locally for $175. I can't wait. I think the optimum stall for the S4 cams is 2200rpm and for the GT is 2400rpm.

BC

The guy doing the bushings or "liners" is Jon Moeller, and I am in the process of ordering two sets right now.

ROG100

Most bearing manufactures have this spec 60062ZJEM bearing and it is pretty easy to find. ***, SKF, Timken and on and on.
Cheapest is General at about $10 each.
I have to buy a reasonable quantity to get that price.
Roger

Vilhuer

They surely didn't put C5's in just for the heck of it. What is longest anyone has run C3's, what C rating, shielding and grease temp range factory, 928 Intl etc. rebuilds use? Lot of unanswered questions. Locally we can find SKF C4's for $35-40 a piece.