Notices

Clutch jutter, variable engage, sticking in gear

 
Old 03-23-2007, 11:23 AM
  #16  
Adrienne
Addict
Lifetime Rennlist
Member
Thread Starter
 
Adrienne's Avatar
 
Join Date: Apr 2004
Location: Austin, Tx
Posts: 2,469
Likes: 0
Received 0 Likes on 0 Posts
Default

Chris - My mech. just bled the clutch a few weeks ago when we replaced the clutch hose. He thought it might be varying due to air bubbles since the clutch hose was leaking. But that didn't fix it....unless there are still air bubbles that is.

One additional thing that seems (in my mind anyway) to point away from the input shaft is that the clutch does not hang and suddenly release. The only action that affects the clutch engagement point is pushing the pedal back in. When I do this action, I do not feel any pressure change in the pedal...the only change I feel is the point of engagement changing. I'm not pumping the pedal like I would for a brake bleed (not that I have done that in my 993, but just as an example).
Adrienne is offline  
Old 03-23-2007, 03:54 PM
  #17  
chris walrod
Guru
Lifetime Rennlist
Member


Rennlist Small
Business Sponsor

 
chris walrod's Avatar
 
Join Date: Aug 2001
Location: yorba linda, ca
Posts: 15,614
Likes: 0
Received 1 Like on 1 Post
Default

Does the car shudder when you are off the gas and push-in the clutch while coasting?
chris walrod is offline  
Old 03-23-2007, 05:49 PM
  #18  
Adrienne
Addict
Lifetime Rennlist
Member
Thread Starter
 
Adrienne's Avatar
 
Join Date: Apr 2004
Location: Austin, Tx
Posts: 2,469
Likes: 0
Received 0 Likes on 0 Posts
Default

Nope. It only shudders/jutters when I am releasing the clutch in reverse, and will generally keep juttering until it gains speed.

It's in the mechanic's hands for the week. So I'll report back when it's cured. Good discussion here, which always helps me de-stress about car problems. Thanks guys!!
Adrienne is offline  
Old 03-27-2007, 10:09 AM
  #19  
ed devinney
Addict
Rennlist Member

 
ed devinney's Avatar
 
Join Date: Jun 2001
Location: Virginia USA
Posts: 1,324
Received 2 Likes on 2 Posts
Default

OK, data point but not really relevant to Adrienne's problem. I had my clutch replaced and applied all of the rennlist nostrums: LWF from Viper Bob, real Mobilube SHC gear oil, new slave & hose. So I can't tell what was most wrong before but the clutch action is smooth and the trans shifts very nicely now when warmed up. Still grumpy when cold, but I think that's the nature of the beast.

The old clutch was worn but not quite down to the rivets. Input shaft wasn't dry. Slave may have been bad, it's hard to tell.

DMF was still in pretty good shape and I saved the it in case I want to go back from the LWF - my wrench really doesn't like them for driveability reasons, but so far, so good. I did a couple other while-yer-in-there things since the engine was out: PS belt ($95 for the belt!!!), SAI check valve, and the spark plugs since that way I would be positive the 12th one was actually replaced :-).

Wallet empty, car promoted to daily driver and owner happy. Good luck, Adrienne, hope yours works out too.
ed devinney is offline  
Old 03-27-2007, 12:25 PM
  #20  
Mike J
Addict
Lifetime Rennlist
Member
 
Mike J's Avatar
 
Join Date: May 2001
Location: Vancouver, BC
Posts: 8,167
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Adrienne
Nope. It only shudders/jutters when I am releasing the clutch in reverse, and will generally keep juttering until it gains speed.

It's in the mechanic's hands for the week. So I'll report back when it's cured. Good discussion here, which always helps me de-stress about car problems. Thanks guys!!
That sure sounds like you have some oil on the disk....when the slave cylinder was leaking did any get onto the clutch? I find the reverse gear on these cars way too high, if you are backing up an incline you have to feather the clutch which promotes lots of wear...

Best of luck on the clutch!

Cheers,

Mike
Mike J is offline  
Old 04-12-2007, 06:31 PM
  #21  
Adrienne
Addict
Lifetime Rennlist
Member
Thread Starter
 
Adrienne's Avatar
 
Join Date: Apr 2004
Location: Austin, Tx
Posts: 2,469
Likes: 0
Received 0 Likes on 0 Posts
Default

---UPDATE---

It's fixed: The master cylinder had a rip in the rubber booty-thingy and it was gunked up, meaning it had been leaking a bit, and certainly letting air into the hydraulics...never good. So we replaced the master cylinder, and the clutch slave cylinder while there. We bled the clutch, and now it shifts like a champ!!
Adrienne is offline  
Old 04-12-2007, 06:40 PM
  #22  
viperbob
Former Vendor
 
viperbob's Avatar
 
Join Date: May 2002
Location: Tampa
Posts: 6,843
Likes: 0
Received 0 Likes on 0 Posts
Default

Glad it is fixed Adrienne. More than likely with these cars, it was your slave that was bad and causing your issues. 99% of the 993s out there if examined you would see the boot torn on the clutch master and a slight amount of gook (technical jargon ) on the arm. It is just as well you replaced it though as they do also wear especially when the slave has not been changed.
viperbob is offline  
Old 04-12-2007, 06:43 PM
  #23  
MarkD
Addict
Rennlist Member
 
MarkD's Avatar
 
Join Date: Sep 2005
Location: Still here...
Posts: 6,962
Likes: 0
Received 0 Likes on 0 Posts
Default

Cool! A happy ending
MarkD is offline  
Old 04-12-2007, 07:19 PM
  #24  
pguy
User
 
pguy's Avatar
 
Join Date: Dec 2002
Location: Antioch, Ca
Posts: 144
Likes: 0
Received 0 Likes on 0 Posts
Default

Adrienne,

Great news!!!

Quick question:
4. The car jutters in reverse.
is also fixed?

Thanks,
-pguy

Last edited by pguy; 04-12-2007 at 11:00 PM.
pguy is offline  

Thread Tools
Search this Thread

Contact Us - About Us - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: