1992 Porsche 911 Clutch assembly

DWAFFORD

MEMBER
1992 PORSCHE 911

I'm assembling the clutch on a G50/03 transmission from a 1992 911. I need advice on how to install the assembled pressure plate/release bearing to make certain that the release bearing interacts properly with the fork. I'm accustomed to seeing the release bearing attached to the fork, but on this transmission that's not the case. There are two ears on the release bearing, which it would appear would engage with the arms of the fork, but unless they are somehow connected, it seems the release bearing would be spinning, and when the clutch was pressed, the ears would bang against the stationary fork arms. Advice on how to install properly would be very much appreciated.

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HMAC300

MECHANIC
48,601 POSTS

Installation
Ensure marks on flywheel and clutch are aligned. Tighten pressure plate bolts evenly in a diagonal pattern. Use clutch alignment tool to center disc. If installing new clutch, balancing marks on clutch and flywheel should be offset 180 degrees.
With transaxle installed, pull release lever away from engine. At least.78" (19.8 mm) clearance must exist between release lever and transaxle housing. Lubricate all sliding surfaces of clutch release mechanism and gear teeth of drive shaft with long-term grease. Position release fork in release bearing. Using adhesive tape, fix position of release fork. Mount transmission to engine.
Ensure seals are positioned properly on clutch release shaft. See Fig. 1. Guide clutch release shaft with sealing rings into release fork. Remove adhesive tape through assembly hole. Pack needle bearing cap with long-term grease. Install needle bearing cap and bracket onto clutch release shaft. Tighten bracket into place using bolt. To complete installation, reverse removal procedure

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Tuesday, February 18th, 2014 AT 6:31 AM

DWAFFORD

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This is very helpful, but I'm still unclear on one point: how does the fork engage the release bearing? Do the arms on the fork drop down between the release bearing ears and the pressure plate springs? Thanks again.

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Tuesday, February 18th, 2014 AT 6:45 AM

HMAC300

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You have to pull the shaft so you can put the release bearing on the fork then put the shaft back in reread what I sent.

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Tuesday, February 18th, 2014 AT 6:56 AM

DWAFFORD

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I'm sorry for being dense. I understand what you've written, about pulling the fork shaft, etc, except for "put the release bearing on the fork" - just not certain about how to do that specifically. Do the arms on the fork hook between the ears of the release bearing and the face of the pressure plate? In other words, I would drop the arms of the fork down between the ears on the release bearing and the pressure plate, tape it in place so it doesn't drop down, slide the transaxle into place, then reach through the access opening to align the fork with the shaft bearing holes, and slide the fork shaft into place. Is that correct? Thanks again for your patience.

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Tuesday, February 18th, 2014 AT 7:16 AM

HMAC300

MECHANIC
48,601 POSTS

The release bearing goes on with the transmission. Prior to putting it on the engine the ears of the bearing must be in the release arm. THEN you put the trans to the engine. The release bearing will have to slide onto input shaft of trans there is no other way to do this