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garyw

I am replacing the clutch in my 1980 931. I have removed the clutch bellhousing and came across this.

[img]http://uk.pg.photos.yahoo.com/ph/gweinheimer/detail?.dir=804e&.dnm=9e35re2.jpg&.src=ph[/img]

Here is a link of the photo does not appear

http://uk.pg.photos.yahoo.com/ph/gweinheimer/detail?.dir=804e&.dnm=9e35re2.jpg&.src=ph

I does not look like the picture in the manual or the PET and has no visible clutch/pressure plate assembly. Any suggestions on what to do next to get at the clutch? Do I remove the starter ring? DO I need a special tool or do I need an allen key strong enough? I have already bent 2 allen keys on the nuts.

Thanks for any advise.

scotthusky89 · Joined: 13 Jul 2007 Posts: 78 Location: south wales uk

yep when i stripped the engone out of my 931 and changd the clutch mine looked like that one u have there and i took it off with a strong allen key bit once u undo the bolts thers 9 i think the starter ring comes off then the pressure plate comes off after and im not sure if there are one or two bolts under th starter ring i dont think there is but ? but once u undo them the plate should come off and then the clutch will be loose
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hi everyone nice to see and talk and hear from u

82 924turbo s2 english rhd verson

garyw · Posted: Sun Aug 12, 2007 11:00 am Post subject:

thanks.

-nick · Joined: 16 Nov 2002 Posts: 2699 Location: Cambridge, MA

Use a quality allen bit on those bolts and make sure it's seated completely - they can and will strip, then you're in for a world of hurt drilling them out with the engine installed.

You'll need a 3/8" drive bit and a matching 3/8" torque wrench to torque them down correctly when you reinstall anyway.

Be forewarned - the pressure is fairly heavy and will fall right on your chest when the last allen bolt comes out, along with the clutch disk.
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1980 931S
15psi boost, MS-II, EDIS, 951 IC, custom intake, Ford 5.0L throttle body, Forge BOV, WB o2, G31 w/LSD, 964 wheels, 968 rear sway, Bilsteins, 200# Welt. springs. A laptop, and a partridge in a pear tree.
1991 964 C4 Cabriolet

Paul · Posted: Sun Aug 12, 2007 11:29 am Post subject:

Yeah as you catch the pressure plate with both hands, the clutch disc will fall out and damage itself. Don't ask.

If you have a clutch alignment tool, install it to hold the clutch before removing those bolts.
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White 87 924S "Ghost"
Silver 98 986 3.6l 320 HP "Frank N Stein"
White 01 986 "Christine"
Polar Silver 02 996TT. "Turbo"
Owned and repaired 924s since 1977
Porsche: It's not driving, it's therapy.

jl924t · Joined: 03 Nov 2002 Posts: 214 Location: Surrey, BC Canada

Have you found replacement parts yet?
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1980 924 turbo

garyw · Posted: Mon Aug 13, 2007 3:34 pm Post subject:

I have all the parts. I just need to install them. I got everything from Autohaus Arizona.

924guy · Posted: Mon Aug 13, 2007 10:46 pm Post subject:

the pics your looking at in the book are probably a for an n/a 924, mine looks the same as yours.... im going to underline nicks post.. echo it, scream it .. go out and get the proper tool. its going to look similiar to this:

even with one, its still easy to strip them out, i stripped one bolt, then broke off a "bolt remover" inside the old bolt carcass, and im still trying to get the darn thing out, two new cobalt bits toasted so far, and several old ones burnt up. one bad bolt...
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Eric
78 924
82 931 SE "smokey"
99' VehiCross
Y2K Honda Insight
http://www.cardomain.com/id/924Guy
Performance by Pasha

garyw · Posted: Tue Aug 14, 2007 7:48 am Post subject:

Too late. The last bolt stripped. I have started to drill it out. The first part was easy, like the metal was soft but am now into some very hard metal. I picked up a bolt remover. I am hoping for the best but have also picked up some expensive drill bits to kep up the drilling.

Buwani 931 · Joined: 31 May 2004 Posts: 308 Location: Napa California

I did mine 7-8 years ago and I have lost a few brains cells since then but I somewhat recall stripping one of the heads. I used a bit and drilled just far enough for the head of the bolt to pop off. Left the threads and removed with vice grips after pulling clutch pack back. If you are hitting something hard now, sounds like the ring gear. Has the head seperated from the bolt yet?

Shawn
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1980 931
That's thirty minutes away. I'll be there in ten.

garyw · Posted: Thu Aug 16, 2007 1:11 am Post subject:

Thats pretty much my plan... drill out the head, take off then starter ring, then remove the remaining stud.

garyw · Posted: Thu Aug 16, 2007 1:14 am Post subject:

and no, the head has not yet seperated from the bolt. I needed to take a day off with the family.

Porsche must design their cars to maximize the hours they can charge for repairs. This is way too much work just to replace a clutch.

Paul · Posted: Thu Aug 16, 2007 9:22 am Post subject:

No they design them to be tanks and last forever.
_________________
White 87 924S "Ghost"
Silver 98 986 3.6l 320 HP "Frank N Stein"
White 01 986 "Christine"
Polar Silver 02 996TT. "Turbo"
Owned and repaired 924s since 1977
Porsche: It's not driving, it's therapy.

garyw · Posted: Tue Sep 04, 2007 7:45 am Post subject:

I got the nut out and the clutch off so thanks to everyone who gave advice.

The next question is about the release bearing guide tube. The new one I purchased is about .4 cm smaller outer size than the old one. Is this okay? Or will this cause a problem for the release bearing? The drive shaft splines still fit through the tube fine.

Thanks

Paul · Posted: Tue Sep 04, 2007 8:09 am Post subject:

Does the throw out bearing still fit over the guide tube?
_________________
White 87 924S "Ghost"
Silver 98 986 3.6l 320 HP "Frank N Stein"
White 01 986 "Christine"
Polar Silver 02 996TT. "Turbo"
Owned and repaired 924s since 1977
Porsche: It's not driving, it's therapy.