Help: Automatic Damper Plate to Manual Clutch

loftygoals · 06-29-2010, 07:55 AM

I have a 1987 924S that I've been restoring on and off for some time. The body/interior is nearly perfect. The motor was shot, but I have a 60k mile motor ready to go in it. I just installed new shocks, new control arms, new tie rods, sport springs infront, and turbo swaybars. Despite being an auto, it should be a fun little driver.

So when I pulled the motor I discovered it's about time for a new damper. I'd like to make sure I don't need to change the damper 10k miles after I install the new motor. I'd like to replace the rubber damper with a manual clutch.

I have searched and found a number of posts about doing this, but nothing as far as a complete parts list. I have a compete manual clutch assembly including flywheel, clutch, pressure plate, bell housing, etc.

Assume that I can simply install the manual flywheel, clutch, and pressure plate and call it a day. Am I missing anything? Any help would be appreciated.

Thanks!
-bj

wild man · 06-29-2010, 08:13 AM

You are missing the pedal, master cylinder, slave cylinder, hydraulic hose, fork, and possibly some brackets.

loftygoals · 06-29-2010, 08:16 AM

Quote:

Originally Posted by wild man

You are missing the pedal, master cylinder, slave cylinder, hydraulic hose, fork, and possibly some brackets.

No, I'm not wanting to convert to a manual, simply replace the ruber damper with the manual clutch assembly. The damper needs to be replaced. Since I have all the extra manual parts I'd rather use them than spend $1000 for a new damper.

I mean I could convert it to a manual. I do have two extra manual transaxles, but then I'd need a manual torque tube, half shafts, peddle asemmble, etc. This is a DD, not a track car--I have enough of those.

Thanks,
-bj

944 Ecology · 06-29-2010, 09:27 AM

Go for it... let us know how it works out.

wild man · 06-29-2010, 09:43 AM

Oh, OK. My 1st P-car was a 77 924 automatic. Truthfully, I hate automatics, but I was unable to pass up on the opportunity. What I can say in favor of it, is that it was probably the most solid automatic transmission that I ever beat upon. I accidentally pushed the button on the shifter once as I was downshifting when starting to climb a mountain. As I struggled to quickly pull it out of 1st @72mph, I witnessed the tach wind all the way around past 9 or 10 grand. The only damage was a pie slice missing from the head of one of the exhaust valves. Must have floated it, I guess.

mr5296 · mr5296's Garage

yes i am wanting to do the same, replace the damper with a manual flywheel and clutch plate, so any actual replies would be greatly appreciated.

John_AZ · 06-29-2010, 01:57 PM

Quote:

Originally Posted by loftygoals

I have a 1987 924S that I've been restoring on and off for some time. The body/interior is nearly perfect. The motor was shot, but I have a 60k mile motor ready to go in it. I just installed new shocks, new control arms, new tie rods, sport springs infront, and turbo swaybars. Despite being an auto, it should be a fun little driver.

So when I pulled the motor I discovered it's about time for a new damper. I'd like to make sure I don't need to change the damper 10k miles after I install the new motor. I'd like to replace the rubber damper with a manual clutch.

I have searched and found a number of posts about doing this, but nothing as far as a complete parts list. I have a compete manual clutch assembly including flywheel, clutch, pressure plate, bell housing, etc.

Assume that I can simply install the manual flywheel, clutch, and pressure plate and call it a day. Am I missing anything? Any help would be appreciated.

Thanks!
-bj

Here is what I think you need to know.

Late model 944 manual clutch assembly into a late model automatic. In this case, the automatic transmission stays in.

No parts list, this is OJT job.

OR

Here is a link on a full swap:
Transmission fitment - Rennlist Discussion Forums

Pedal and clutch master cylinder info (on a 928--close enough

)

Clutch Linkage

GL
John

loftygoals · 06-30-2010, 08:52 AM

Quote:

Originally Posted by John_AZ

Here is what I think you need to know.

Thanks!

I'm going to get going on this soon. I'll take some pics and document my findings.

-bj

wild man · 07-01-2010, 06:19 AM

I don't know if it helps anyone or not, but the first time the plate failed on my 77 924, it was the splined part that the collar goes over that broke. I welded one from a (other make) used clutch disc onto it, and it held for a while. But when the rubber part later failed, so I ended up putting another one (from a JY) on it. I do remember that the shifts on that transmission were very hard - placing a great deal of stress on the rubber plate.

todd84944 · 07-01-2010, 10:06 AM

I have a good used dampner that I took out of a car that I converted to a 5-speed. Looks to not very old at all. Make me a offer.

wild man · 07-01-2010, 10:34 AM

Quote:

Originally Posted by todd84944

Make me a offer.

Like Bill Engvall would say: There's your sign!

todd84944 · 07-01-2010, 11:33 AM

It is not that bad to convert to 5-sp. I have done 4 conversions. You already have most of the parts. It is a bolt in operation with no fab work required. The only thing you have to cut is the bracket that hold the auto shifter down. I always switch out the tt. Some folks don't and just drill the holes for the shifter. As far as installing a clutch and pressure plate instead of the dampner, you will greatly shorten the lift of the auto tranny. There is a reason Porsche put a rubber disc in there!!!

todd84944 · 07-01-2010, 11:34 AM

Oh... the dampner I have, I talked to the owner of the car I took it out of, it has around 10k miles on it.

loftygoals · 07-23-2010, 06:28 PM

Wanted to follow up. I ended up installing a manual flywheel, clutch, and pressure plate. There is a good chance that this car is about to be purchased and the new owner wants a manual transmission. So I installed the throwout bearing and clutch fork too. It should make the swap a lot simpler in the future. I have a write up and pics coming soon.

-bj