Clutch question?

[opata]

Hello,
I am collecting parts for my engine rebuild on my 80sc. I plan on replacing my clutch disc. Do I need to replace the pressure plate? throw out bearing? Release lever? Anything else I really need to replace since its all apart?

Thank you!!!!!
Alan

[steve911T]

Opata,

The list of endless, first buy Wayne's book, 101 Projects and go through the book. Fix all oil leaks and potentials, replace all of the clutch plus seals, probably replace the soundproofing, adjust the valves while it is out and I am sure there is more but this is my $.02 cents worth.

Steve

[Oh Haha]

You realize the parts you've listed kinda go with the gearbox,right?

















j/k

You should replace the pressure plate, TObearing, and possibly the flywheel. If it is scored and burnt, it should be checked for flatness and replaced if it cannot be machined.

As far as bits for an engine rebuild, that's a whole 'nother story.

[opata]

Thanks for the replies. I am following Wayne's rebuild book. Have the case split open and ready to send stuff to the machine shop. I kinda knew the answer to my question but I need reassurance to spend another $500 At this point what's money anyway??? I hope to have the engine put back together and running by the end of the summer. So far it has gone very smooth...just expensive. I will probably go ahead and just buy a clutch kit. Already decided to go with a stock rebuild. Just can't justify the cost for such a minimal HP gain with aftermarket pistons and SSI's.......

thanks again!
Alan

[Oh Haha]

Get the Sachs "Power" clutch kit.

It should last you many miles and will handle any upgrades you might do in the future.

[Walt Fricke]

Why replace your pressure plate? Were you having troubles with the clutch? Is it deeply scored? If so, what's the flywheel look like. Problems with one are apt to include problems with the other.

I would pull the TOB and look at the amount of wear on the diaphragm spring fingers where the TOB sits. Shiney is OK, worn down is not so good.

How does the TOB spin? Just fine?

The internal tranny throwout fork (release lever) can break, though how often this happens I can't say. Mine haven't, though one did on a VW van (a much weaker part). I'd not worry about that - it is a nice forging. You could clean and inspect it.

It might be worth your while to drive out the drift pin and remove the vertical shaft, on whose top this fork sits. You can clean the shaft and bearings, and lubricate them. This would allow you to give a good cleaning and close inspection of the fork. Or not do any of this if the fork and shaft move easily enough.

A new disk makes sense. If the other parts are good, why replace them as part of a stock rebuild? Now that you know what is involved, you can pull your engine and deal with any clutch problems which might pop up later. Not the same as having to open the engine case back up.

[opata]

Hello,

That sounds practical to me. Certainly less money. Never had any problems with clutch...except the car would hop a little when i let clutch out hard. I figured this was due to bad engine and tyranny mounts. (which are shot) Other than that it shifted fine. If I replace everything I will go with the sachs unit. Thank you!!!!

Alan