RajDatta

Its more important to change needle, since that is what gets notched up from the bearings.
Raj

FRporscheman

Thanks Raj .

Miles, I'm using a Porsche 944S2 flywheel, clutch, PP, fork, and starter, and a 951 TT and bellhousing. Luckily the 968 clutch hydraulics could all be retained. So my clutch changes aren't this easy anymore! But I won't need to change it for several years.

blackboy

For those who have done or had this done, does the flywheel usually need to be resurfaced?

PorscheDude1

"Most" places will not resurface a DMF.
Also the rubber inside the DMF deteriorates over time
causing viberations. Depending on mileage, it should
be replaced as it is a wear item.

I saw a write up somewhere long ago on how to check
the deflection of the DMF, but have no idea where it was posted.

RajDatta

Essentially, if you twist the mating surface of the DMF against the back side of the DMF, it should deflect back right away. It it doesn't, its shot.
Pretty easy to see when you do the test.
Raj

FRporscheman

There are places that will resurface DMFs. Just call around, and tell them you want a "dual-mass "cup" style flywheel" resurfaced and see what they say. "Cup" style just means that there is a friction surface and a raised lip surface, so the flywheel is like a cup.

If nobody will resurface it for you, just take a disc sander with a standard pad and hit it nice and steady all the way around. Get the scorch marks to mostly disappear and you're good. You can also sand by hand but don't get carpel-tunnel. Don't use a sand blaster - the sand could get into the DMF and cause problems.

blackboy

Does anybody in the New York area have a flywheel lock that I can borrow? Preferably for this weekend as the car is already up on jacks partially apart. Thanks.

blackboy

I would pick it up and return it of course. Thanks.

PorscheDude1

I'll be in Brooklyn (Marine Park) on Thursday if you want to come pick it up?
Send it to me when your done.

rdhayward

I could loan out my Arnworx set, too.

Chaos

1. No mention of a hammer ?

RajDatta

I spoke to blkboy on the phone and he should not be needing a flywheel lock. He is only doing the clutch, not the flywheel.
Raj

blackboy

Thanks guys for your offers of help. As of now everything looks sorted and I hope to be posting pics and the results of my efforts in a few days. Thanks again.

dkdm

Hi,
I did a clutch job a month ago and found Raj's write up very helpful.

I want to add pictures and my two cents to his instructions.



No problems here just do this before you get the car in the air.


My exhaust came out in 1 piece without any trouble. Those pictures were too blurry to post. I guess I was moving fast at that point!



I left the wires attached and used a metal hanger to keep it out of the way. My son did bump his head on it - learning can be fun!








I'm going to break this into several replies. I already had to redo once after closing it by mistake

dkdm

You may notice on the last picture a bolt and nut on the flywheel lock. Someone has been here before The threads on that side of the starter were gone and they put a longer bolt and nut. Not sure if this a common issue.



You can see the bolt with the locking nut above the flywheel lock (you can see I sprayed penetrating oil around that area). I used a fairly short bolt screwed into the open threads on the end and then with some vise grips pulled the needle out. It really is more of a shaft than a needle. Below is a better picture of the bolt and then the needle.






The rubber cap there on the torque tube pops right off.



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