924Board.org

[McGyver]

What parts are needed to put 931 Hydraulics Clutch in to 924?

I have already 931 snailshell gearbox with 931 torque tube installed with 924 clutch - somehow it was made and still work.
_________________
931 82' - 5000km after full engine rebuild

SOLD: 924 81' N/A- with turbo gearbox "dogleg" - great but mysterious car
www.mauser98k.internetdsl.pl - if someone like german rifles (English version avalible)

[morghen]

interesting...i wanted to do something similar but "the many" aka the people on this board concluded that its not possible. so i've purchased everything related to the 931 clutch and going to restore my 932 to hidraulic clutch instead of installing the 924 cable clutch.
What you have there is probably a home made or a custom system or at least a NA modified system.

here is a list of parts you need:

931 flywheel
931 clutch disc
931 pressure plate
931 release bearing
931 fork/shaft
931 bellhousing
931 starter motor
931 hydraulic cylinder slave
931 hydraulic cylinder master
931 hydraulic cylinder line
931 hydraulic pedal (complete with spring and stopper)

i have already converted my 924(CGT) to hidraulic clutch when i dropped the turbo engine in it. you need to drill the hole for the master cyl, the hole is marked and its there but its just a blank so you need to drill it...wich is a pain in the ass if you dont take the dash off or the engine out.
_________________
Supercharger and EFI kits
https://www.the924.com

[Slam]

So does this mean the difference in length of the torque tubes for the Audi vs. the snail is at the rear?

If one was to use a 931 hydraulic setup with a snailshell, then I'd think the torque tube for the snail would be used, yes? But is the snail torque tube the large diameter one? I'd think your first issue would be matching drive shaft diameter n/a to turbo.
_________________
'84 944 - kid blew motor
'83 944 - resting comfortably. For 12 years
'87 944 - sideswiped by trucker
'80 924 - gone
'78 924 - gone
'77 924 - rusting comfortably

[McGyver]

That's what I found yesterday:



Someone cut big hole under the gear stick. Gear shaft to that place (from gearbox) have 25mm diameter. Something in photo could be "Vibration dumper" what I found in Haynes and that something looks like gear wheel it could be bearing. I'll try to push it back and see what is near clutch if it's possible. Any ideas?
_________________
931 82' - 5000km after full engine rebuild

SOLD: 924 81' N/A- with turbo gearbox "dogleg" - great but mysterious car
www.mauser98k.internetdsl.pl - if someone like german rifles (English version avalible)

[ideola]

Michal, as we discussed, it could be a grafted / welded driveshaft.

But one other possibility is that the previous owner was ingenious enough to find or fabricate a clutch disc that accepts the 25mm driveshaft but still works with the 924 NA setup. Sounds like the answer to the mystery will be at the clutch end of the torque tube!
_________________
erstwhile owner of just about every 924 variant ever made

[McGyver]

Tooday I go under the car to check can I get some more details about what is going on. Unfortunatelly still nothing what I want to know. But I find out that something like gear whell is for bearing - but the bearing is not there. That big thing is that Vibration Dumper what can be found in Haynes. i don't think it's still working. It take some time to move it a few centimeters to gearbox. So I'm sure drive shaft have 25mm up to 65-70cm before clutch - half way to go
I don't think someone could weld 20mm drive shaft to 25mm, It would be not enought strong and will broke. maybe someone make new end what will fit 20mm cutting out that 5mm or found good clutch for 25mm... Only way to know is to remove it... maybe some day
Next photos:



_________________
931 82' - 5000km after full engine rebuild

SOLD: 924 81' N/A- with turbo gearbox "dogleg" - great but mysterious car
www.mauser98k.internetdsl.pl - if someone like german rifles (English version avalible)

[ic932]

interesting stuff. I just hope your TT hasn't been machined down to 20mm to fit a 924 disc.

[McGyver]

I don't know that I hope it is some other clutch disc... if not I have to think about new TT
_________________
931 82' - 5000km after full engine rebuild

SOLD: 924 81' N/A- with turbo gearbox "dogleg" - great but mysterious car
www.mauser98k.internetdsl.pl - if someone like german rifles (English version avalible)

[Martijnus]

What I'm curious about is the fact that you're mcgyver... and you don't know how to fit the 931 clutch on a NA...
You can build planes from bamboo and some tape... whut's the prob?

_________________
"Rule: Turbo's make torque, and torque makes fun." (C. Bell)

924 "50-jahre", 1981.
MSII/extra, LPG, ITB's, 5lug.
To be turbo'ed in a while.
Killed her at the Nurburgring, Porscheless at the moment

[McGyver]

Yes it's right. But if I want to do that I do it in right way i hope

Can anyone tell me how much weight torque Tube with drive shaft from 931? best will be in KG if not conversion shouldn't be any problem.

The lenght of drive shaft is something about 160cm, approx

Just in case: maybe someone have one TT&DS for sell somewhere near?
_________________
931 82' - 5000km after full engine rebuild

SOLD: 924 81' N/A- with turbo gearbox "dogleg" - great but mysterious car
www.mauser98k.internetdsl.pl - if someone like german rifles (English version avalible)

[endwrench]

I can't tell you how much your TT weights but I do know the 20mm tube weights 50 lbs and the 25mm Audi (944) tube weights 63lbs.

I'm not sure if you are just looking for more holding power with your G31 but you might take a look at this just to give you something to think about it:

http://www.924board.org/viewtopic.php?t=22052&highlight=

Todd
_________________
'79 924NA. Rebuilt 9.5:1, MSDS header, Mega Squirt Injection, MJLJ-EDIS Ignition, 1.6L Whipple Charger and Intercooler, 10lbs Boost, 944 Trans, Custom HD Clutch.
"simsport" said....superchargers are better than turbos its official!....