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cl8ton's Avatar
 
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Throw out bearing question

Received my new bearing and noticed this difference in height visible in the pic.

Part # of the new bearing is 930 116 081 11

Both the the new and old bearings have the same numbers stamped on them F&S Typ KZA/Z-2 3151 019 231

Do I remove the clip and change out the center piece? or am I missing something here?
Guess I expected to get exactly the same part as my old one.

PET shows diff part numbers for Turbo and Carrera, so made sure to get the right one.

Thanks in advance!


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2010 - 997 PDK, Black on Black, Daily driver.
1987 - 930 Grand Prix White, Not looking for crazy HP, just harmony!

Last edited by cl8ton; 01-07-2009 at 05:30 PM..
Old 01-07-2009, 05:26 PM
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It probably doesn't help much, but I have also just replaced my TO bearing and the old and new ones looked same as your new one (the one on the left?) for an 86 930.
Maybe your clutch and TO bearing isn't stock?
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1988 Carrera - 3.6 engine (with ITBs, COPs, MS3X) and a whole set of turbo body panels waiting in the attic.
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Old 01-07-2009, 06:11 PM
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Thanks billjam...

Here are all the numbers/letters stamped on the rear of my clutch assembly pictured below.

88 3082 999 594
Sachs Sporting
TYP GMFZ 024
3032 042 099
F&S West Germany
3 32.97

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Rod...
2010 - 997 PDK, Black on Black, Daily driver.
1987 - 930 Grand Prix White, Not looking for crazy HP, just harmony!
Old 01-07-2009, 06:21 PM
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sudo apt-get purge 930
 
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My 1979 uses the one on the left too. There is a guy on here, dspturtle??? that had a custom TO bearing that was long like that. I think it was made by Patrick Motorsports.
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Old 01-07-2009, 06:41 PM
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Here: Clutch Porn
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Mark 1979 930 Euro ***GONE AND DON'T MISS IT AT ALL***

"Worrying about depreciation on your car and keeping mileage down is like not ****ing your girlfriend so her next boyfriend finds her more appealing"
--clutch-monkey
Old 01-07-2009, 06:42 PM
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Thanks Mark, between Google, my first tear down and the thread you posted an image is forming in my head now
Gotta love PO's and surprises
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Old 01-07-2009, 06:48 PM
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The short release bearing fits the early 930 clutch which had the tall pressure plate to accomodate the rubber centered disk.

Old 01-07-2009, 06:49 PM
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The bearing on the right is used in the RS setup for a turbo to make up the difference in pressure plate height. I am not certain if you can swap the ones you have. If you look at the picture with the pressure plate that huge billet ring on the top is also not part of the pressure plate and is an adapter to allow the difference again in height to be right for the ring gear. The TOB is longer to reach the throw out fork.
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Old 01-07-2009, 06:56 PM
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so if im running the aluminum pressure plate with the spacer i would need the longer throw out bearing?
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Old 01-08-2009, 03:24 PM
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Using a early pressure plate (75-77) with a later transmission (78-up) you will need the longer throw out bearing and spacer for the ring gear.
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Old 01-08-2009, 08:55 PM
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I'm confused guys. I have an 87 that had the early spring centered disk, PP and short TOB.

I now have a KEP stage 2 PP and their disc with the short TOB.

No mods. No rings. No adapters.

To me, it seems they were all bolt in. What am I missing?
Old 01-09-2009, 11:03 AM
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If you run the lighter weight pressure plate from the early 3.0L Turbo, you need a TO bearing extension adapter and a starter ring gear spacer, to make the pressure plate work with the longer tranny bell housing of the later cars.
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back in the saddle: '95 993 - just another black C2
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Last edited by sand_man; 01-09-2009 at 11:08 AM..
Old 01-09-2009, 11:05 AM
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Quote:
Originally Posted by A930Rocket View Post
I'm confused guys. I have an 87 that had the early spring centered disk, PP and short TOB.

I now have a KEP stage 2 PP and their disc with the short TOB.

No mods. No rings. No adapters.

To me, it seems they were all bolt in. What am I missing?
.. cl8ton......So as you are using the non original competition lightweight clutch ( used in the 77 and prior 930 ) instead of the later rubber disc one you will need the corresponding TO bearing. Patrick Motorsports ( Phoenix AZ ) indeed will have the correct TO bearing for your application. Just give them the list of parts you have, the year of the transaxle & bell housing and they will get you the right part(s). I went thru this myself with lots of hassle until I made the call. I did the reverse. I had the same clutch set up as yours in a 88 transaxle. I had my bell housing re-machined to short bell housing trans spec ( sans Patrick Motorsports) so it would work in a pre 78 chassis application. I had to discard the ring gear spacer and get the short TO bearing.

Last edited by voitureltd; 01-09-2009 at 12:44 PM..
Old 01-09-2009, 12:01 PM
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A930Rocket, maybe you have a early transmission with a short bellhousing. post a pic...
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Old 01-09-2009, 01:47 PM
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The setup I posted in pics below is already installed in my car(by a previous
owner, it was like this when I bought the car) I am only changing the TO bearing.

Since the new bearing has the same part no as my old bearing, I am assuming
I can just swap the longer sleeve out of my old bearing into my new bearing after removing the shorter sleeve.

This should be fine, right? (i.e. I don't need anything else from Patrick Motorsports to finish this)

Quote:
Originally Posted by voitureltd View Post
.. cl8ton......So as you are using the non original competition lightweight clutch ( used in the 77 and prior 930 ) instead of the later rubber disc one you will need the corresponding TO bearing. Patrick Motorsports ( Phoenix AZ ) indeed will have the correct TO bearing for your application. Just give them the list of parts you have, the year of the transaxle & bell housing and they will get you the right part(s). I went thru this myself with lots of hassle until I made the call. I did the reverse. I had the same clutch set up as yours in a 88 transaxle. I had my bell housing re-machined to short bell housing trans spec ( sans Patrick Motorsports) so it would work in a pre 78 chassis application. I had to discard the ring gear spacer and get the short TO bearing.
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1987 - 930 Grand Prix White, Not looking for crazy HP, just harmony!
Old 01-09-2009, 02:13 PM
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ok but is it possible to use the short throw out bearing with complications? crappy pedal, clutch slippage under boost?
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Old 01-09-2009, 03:37 PM
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Quote:
Originally Posted by lite75 View Post
A930Rocket, maybe you have a early transmission with a short bellhousing. post a pic...
I'm pretty sure Rocket has a standard '87 tranny. He's running the KEP gear, which requires no additional adapters...same as what I have, except I have the Stage One pressure plate, and he is on Stage Two.

You can run the early 3.0L Turbo clutch disc with a standard (standard for an '87) Sachs Pressure plate. Perhaps that's what he had before turning to KEP...that's what I had.
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back in the saddle: '95 993 - just another black C2
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Last edited by sand_man; 01-09-2009 at 04:23 PM..
Old 01-09-2009, 04:21 PM
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I think Jeff is right. When I bought the car, the clutch had a spring centered disc in it when I pulled the engine a couple of years later.

I didn't know what it was, but bought a new sachs set up for an early 930 from IA. It was a bolt in as was the KEP.

Quote:
I'm pretty sure Rocket has a standard '87 tranny. He's running the KEP gear, which requires no additional adapters...same as what I have, except I have the Stage One pressure plate, and he is on Stage Two

You can run the early 3.0L Turbo clutch disc with a standard (standard for an '87) Sachs Pressure plate. Perhaps that's what he had before turning to KEP...that's what I had.

Last edited by A930Rocket; 01-09-2009 at 07:00 PM..
Old 01-09-2009, 06:55 PM
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i just changed out my stock 78 clutch with the center force light weight kevlar set up from patrick motor sports they sent a short t/o and long adapter i just pulled inside clip and switched short one would not work .
Old 01-14-2009, 06:40 PM
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Quote:
Originally Posted by jomama View Post
i just changed out my stock 78 clutch with the center force light weight kevlar set up from patrick motor sports they sent a short t/o and long adapter i just pulled inside clip and switched short one would not work .
Why wouldn't it not work? Here is a shot of my RS long sleeve switched onto a new TO bearing.


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1987 - 930 Grand Prix White, Not looking for crazy HP, just harmony!
Old 01-14-2009, 06:50 PM
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