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Join Date: Jan 2007
Location: San Mateo
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930 clutch options?

Hi .... the other day at the stoplight while holding the cltch down , I heard (and felt) a crunch in the pedal. Now the pedal only returns half way and the clutch disengages 3/4 of the way down.

I cant seem to be able to get in where the cable terminates up front but I suspect the problem in at the clutch arm to presure-plate/TO-bearing. Clutch slips really bad now as well. Hopefully it is something other than replacing everything.

Anywho ... now that I mst likely will pull hte engine to address this clutch issue I think I should probably just replace the clutch, pressure plate and throwout bearing.

I was wondering about clutch options? This car is moslty stock except for bolt on mods so high-hp setup is not necessary. Any suggstions on aftermarket set-ups or are the stock pieces the way to go?

thanks for any help,
Oskar
Old 09-02-2008, 03:45 PM
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It sounds like a broken diaphragm spring (pressure plate). No clamping force. Is the pedal easier to push down since the crunch?
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Old 09-02-2008, 05:57 PM
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Max Sluiter
 
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You checked the roll pin in the pedal cluster shaft below the footboard?
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Old 09-02-2008, 07:19 PM
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Use the early spring centered disc if you do need to replace the disc.
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Old 09-02-2008, 11:14 PM
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Before you make any assumptions and pull the tranny/engine, you really need to verify that something else isn't going on. Rule out the other things like:
-Fraying clutch cable
-Improperly adjusted clutch cable
-Worn, cracked, or dislodged "Omega" return spring on the bottom of the tranny
-Worn pedal bushings
-Broken pedal roll pin
-Cracked pedal cluster shaft - often the shaft the roll pin fits into, cracks right at the pin hole

To inspect the areas around the pedal cluster, it is often easier to gain access with the center console removed...and obviously the foot board that hides the pedal assembly.

There is no point in replacing expensive clutch components (pressure plate, disc, T/O bearing, pilot bearing, flywheel resurface/replacement, main seal) only to find out that your pedal still isn't right.
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back in the saddle: '95 993 - just another black C2
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Old 09-03-2008, 04:53 AM
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As for clutch ideas, the factory pressure plate weighs a ton...it's a freaking anchor!!!!! I wish that when I did my clutch job, I would have taken another path. These folks have some good ideas for "lighter weight" clutch parts. Their prices are a tad high, but it's a good starting point for research:

http://www.patrickmotorsports.com/parts/7/6/12/

I'm planning to run the KEP Stage 1 PP with the stock spring centered disc when I finally "do-over" my clutch...
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back in the saddle: '95 993 - just another black C2
*SOLD*: '87 930 GP White - heroin would have been a cheaper addiction...
"Ladies and Gentlemen, from Boston Massachusetts, we are Morphine, at your service..." - Mark Sandman (RIP)

Last edited by sand_man; 09-03-2008 at 05:12 AM..
Old 09-03-2008, 05:03 AM
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One other thing to add, if it does end up being your clutch, when you have your engine/tranny out and apart, a few other things to check for wear are the T/O bearing guide tube in the center of the tranny bell housing, the clutch fork shaft, and the fork itself. Yeah, yeah, I know it's no biggie to pull the engine, but I hate going back in...
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back in the saddle: '95 993 - just another black C2
*SOLD*: '87 930 GP White - heroin would have been a cheaper addiction...
"Ladies and Gentlemen, from Boston Massachusetts, we are Morphine, at your service..." - Mark Sandman (RIP)
Old 09-03-2008, 05:12 AM
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I'd stay away from Centerforce. When I get off my a$$, I'll be putting a KEP in mine.
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Old 09-03-2008, 07:47 AM
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Thanks , will check on these things. KEP pressure plate looks like the way to go.
Old 09-03-2008, 08:59 AM
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fyi my clutch was real stiff.replaced clutch cable pedal cluster with no luck.pulled moter replced disc and TO motor back in same thing pulled motor 2nd time found clutch fork had hair line crack on one side this would bind the TO on the shaft relaced fork problem solved
Old 10-06-2008, 08:36 PM
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"I wuz the liquor..."
 
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Quote:
Originally Posted by jomama View Post
fyi my clutch was real stiff.replaced clutch cable pedal cluster with no luck.pulled moter replced disc and TO motor back in same thing pulled motor 2nd time found clutch fork had hair line crack on one side this would bind the TO on the shaft relaced fork problem solved

This is exactly what I'm expecting to find when I get ready to do mine.
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back in the saddle: '95 993 - just another black C2
*SOLD*: '87 930 GP White - heroin would have been a cheaper addiction...
"Ladies and Gentlemen, from Boston Massachusetts, we are Morphine, at your service..." - Mark Sandman (RIP)
Old 10-07-2008, 05:05 AM
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