| View previous topic :: View next topic |
| Author |
Message |
Bockscar
Joined: 16 Nov 2010
Posts: 392
Location: Sandy, Oregon
|
 Posted: Sun Mar 25, 2012 5:19 am Post subject: Clutch question |
 |
|
I'm having a simple problem with my clutch. Currently, the clutch pedal is sitting on he floor. I've added a copious amount of break fluid to the master Cylinder and still nothing is changed. However, I can move through out the gears as if the clutch is disengaged.
_________________
Brian
'79 924 - Restoration In Progress
'81 924 Turbo w/EFI - Scrapped |
|
| Back to top |
|
 |
fiat22turbo
Joined: 18 Jan 2006
Posts: 4040
Location: Portland, OR
|
| Posted: Sun Mar 25, 2012 6:05 am Post subject: |
|
|
It's similar to 944 and 911 clutches. Check out Clark's Garage for more info, but I suspect you've got to at least pull the inspection panel underneath and take a look. A thorough bleeding of the hydraulic system might help, but you'll likely need to rebuild/replace the clutch master and slave cylinders.
Good luck!
_________________
Stefan
1979 924 Carrera GTS (clone-ish)
1988 944 Turbo S (Silver Rose) |
|
| Back to top |
|
|
ideola
Joined: 01 Oct 2004
Posts: 15550
Location: Spring Lake MI
|
| Posted: Sun Mar 25, 2012 10:12 am Post subject: |
|
|
Sounds like one of the cylinders is shot. You might as well replace them both, as it's a bitch to bleed, and you'll only want to do it once. I would suggest getting the Motive Power Bleeder, as this will greatly help in bleeding the system (you can do it by yourself with no need for someone to sit there and pump the pedal). If you need pricing on the clutch hydraulics, let me know, I can get all that stuff now.
_________________
erstwhile owner of just about every 924 variant ever made |
|
| Back to top |
|
|
Bockscar
Joined: 16 Nov 2010
Posts: 392
Location: Sandy, Oregon
|
| Posted: Sun Mar 25, 2012 10:25 am Post subject: |
|
|
Well let me give a little more back story. The break line to the front drivers side caliper wasbusted and I fixed it, added more break fluid, but I have not bled anything yet. The reservoir is holding fluid and I haven't seen any leaks anywhere
_________________
Brian
'79 924 - Restoration In Progress
'81 924 Turbo w/EFI - Scrapped |
|
| Back to top |
|
|
Bockscar
Joined: 16 Nov 2010
Posts: 392
Location: Sandy, Oregon
|
| Posted: Sun Apr 01, 2012 3:12 pm Post subject: |
|
|
| ideola wrote: | | Sounds like one of the cylinders is shot. You might as well replace them both, as it's a bitch to bleed, and you'll only want to do it once. I would suggest getting the Motive Power Bleeder, as this will greatly help in bleeding the system (you can do it by yourself with no need for someone to sit there and pump the pedal). If you need pricing on the clutch hydraulics, let me know, I can get all that stuff now. |
I went ahead and bought 2 new cylinders (slave and master), and bled the heck out of the system. Problem is that now the clutch play is about 1 1/2 inch. Also when I bleed the system with my trusty power bleeder, it seems like the air bubbles never stop.
_________________
Brian
'79 924 - Restoration In Progress
'81 924 Turbo w/EFI - Scrapped |
|
| Back to top |
|
|
9xx
Joined: 18 Jun 2006
Posts: 627
Location: Jarvenpaa, Finland
|
| Posted: Sun Apr 01, 2012 5:19 pm Post subject: |
|
|
| Bockscar wrote: | | Also when I bleed the system with my trusty power bleeder, it seems like the air bubbles never stop. |
It will help if rear end of the car is higher than front end.
_________________
Mikko
All gone: 931 '82 Alpine White, original option "220" G31 with LSD + 3 x 944 |
|
| Back to top |
|
|
ideola
Joined: 01 Oct 2004
Posts: 15550
Location: Spring Lake MI
|
| Posted: Mon Apr 02, 2012 12:33 am Post subject: |
|
|
Did you bleed the entire system? You need to start with the right rear brake caliper, then go to left rear, then right front, then left front, and THEN do the clutch slave.
There should only be about 1/2" of play in the clutch pedal when properly bled and adjusted. After you get ALL of the air out of the system, if the play is still too much, you can adjust the threaded portion of the master cylinder-to-clutch pedal rod to bring the play within spec. Consult FSM or Haynes supplement for details, as I have neither handy at the moment.
And +1 to getting the rear higher than the front.
_________________
erstwhile owner of just about every 924 variant ever made |
|
| Back to top |
|
|
Bockscar
Joined: 16 Nov 2010
Posts: 392
Location: Sandy, Oregon
|
| Posted: Mon Apr 02, 2012 10:39 am Post subject: |
|
|
| ideola wrote: | Did you bleed the entire system? You need to start with the right rear brake caliper, then go to left rear, then right front, then left front, and THEN do the clutch slave.
There should only be about 1/2" of play in the clutch pedal when properly bled and adjusted. After you get ALL of the air out of the system, if the play is still too much, you can adjust the threaded portion of the master cylinder-to-clutch pedal rod to bring the play within spec. Consult FSM or Haynes supplement for details, as I have neither handy at the moment.
And +1 to getting the rear higher than the front. |
Ok, I need serious help here. I've bled the entire system, with the rear raised higher than the front. Breaks feel great clutch still had about an inch and a half of play. The push rod is as loose as it possibly canbe without falling out. My friend says it seems like the throw out bearing on the clutch is missing. Through the inspection cap is can see the plunger press against the clutch fork all the way, but it only returns about halfway without me pulling on the clutch pedal.
_________________
Brian
'79 924 - Restoration In Progress
'81 924 Turbo w/EFI - Scrapped |
|
| Back to top |
|
|
|
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
924 FAQ (Technical)
