Pelican Parts
Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   Pelican Parts Forums > Porsche Forums > Porsche 924/944/968 Technical Forum


Reply
 
LinkBack Thread Tools Rate Thread
Author
Thread Post New Thread    Reply
Registered
 
Join Date: Jan 2002
Location: Long Beach, MS
Posts: 39
Send a message via AIM to jeh1995
Angry 944 Clutch Slave Cylinder

I blew out the slave (an obvious thing from the puddle and action of the old one) and bought a replacement. I also have a MityVac kit and tried to bleed the system with no real luck. My driveway is on a bit of an incline with the front of the car being higher (a little) than on a flat surface. I jacked up the back and that helped a little.

I suspect that I was drawing air into the hose as I sucked the brake fluid in... It was dark and cold of course.

So... just what are the Porsche tricks here. I read about jacking the rear end up. Should the clutch pedal be against the firewall or in the released (up) position? Will the MityVac thing work or am I just wasting time? What is the best way to get my toy on the road again?

Thanks in advance for the help!

Old 01-08-2002, 08:21 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #1 (permalink)
Registered
 
Join Date: Jun 2001
Location: MN
Posts: 604
Clutch pedal up. This is a ***** so go over to 944 Garage and look at their procedures. Short story is you do want the rear end of the car higher but it may not do it. Take the bleeder nipple off and put some grease on the nipple threads so air can't get by. Try pulling the slave off to bleed and tilt it rear up; then put it back in. The problem is air gets trapped due to poor design and if that isn't bad enough air wants to get back in around the threads and the tube of your Mighty Vac. Power bleeder from the top is better.
Old 01-08-2002, 10:17 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #2 (permalink)
Registered
 
Join Date: Dec 1969
Location: Maine
Posts: 494
Garage
I've used the Mity Vac twice to bleed my clutch. I had no problems with it either time. The clutch pedal should be completely up. Bubbles coming through the threads were annoying but I don't think that it allowed air into the system. Just make sure that the reservior never gets low during the bleed.

If you still can't bleed completely, you may have a leaky seal. Just a guess.

I agree with IceShark. The pressure bleeder is much better. I helped a friend with his Mercedes and a pressure bleeder. Quicker, more thorough, and less messy than a vacuum bleeder.
__________________
-Dave-
1969 911/3.0l SC
Old 01-09-2002, 10:04 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #3 (permalink)
Registered
 
Join Date: Jun 2001
Location: MN
Posts: 604
Dave, the problem is he replaced the slave and has total air in the system. Your good experiences with mighty vac are now invalid, believe me, and you don't need to ask me why I know this. A power bleeder may not work so great in this situation either.

The slave has an air pocket condition because of design and the nipple not being at the absolute high point of the slave. Once air gets in it is plain tough to get out which is why if you tilt things like pulling the slave out or raising the rear of the car very high you can usually solve the problem.

Old 01-09-2002, 10:37 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #4 (permalink)
Reply


 


All times are GMT -8. The time now is 11:21 PM.


 
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2025, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2025 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page
 

DTO Garage Plus vBulletin Plugins by Drive Thru Online, Inc.