Go Back   Club Cobra > Club Cobra Tech Areas > Transmission Talk

Welcome to Club Cobra!  The World's largest non biased Shelby Cobra related site!

  •  » Representation from nearly all Cobra/Daytona/GT40 manufacturers
  •  » Help from all over the world for your questions
  •  » Build logs for you and all members
  •  » Blogs
  •  » Image Gallery
  •  » Many thousands of members and nearly 1 million posts! 

YES! I want to register an account for free right now!  p.s.: For registered members this ad will NOT show

Keith Craft Racing
Nevada Classics
Main Menu
Nevada Classics
Nevada Classics
Keith Craft Racing
MMG Superformance
Advertise at CC
Banner Ad Rates
Keith Craft Racing
MMG Superformance
MMG Superformance
June 2022
      1 2 3 4
5 6 7 8 9 10 11
12 13 14 15 16 17 18
19 20 21 22 23 24 25
26 27 28 29 30    
  #1 (permalink)  
Old 05-13-2022, 09:31 PM
fastd's Avatar
CC Member
Visit my Photo Gallery

Join Date: Sep 2008
Location: Austin, TX
Cobra Make, Engine: ERA FIA, 351W
Posts: 764
Not Ranked     
Default Clutch engagement

Iím having some trouble with my clutch / hydraulic throw out bearing

With the car on jack stands, is it normal for rear wheels to spin with the trans in 1st gear (or any gear) with the clutch fully depressed?

After about 1000 miles on a new clutch, I couldnít get the car into gear while the engine was running; problem developed fairly quickly. 3 drives ago, trans reluctantly went into gear after cold start but no problem getting gears after the first struggle to get in gear. Got only slightly progressively worse until it wouldnít go in gear at all. I figured that the new clutch needed adjustment but adjusting the master cylinder push rod did not help. I bled the system several different solo ways but the old fashioned two person technique worked best.

The car goes into gear now after bleeding but the tires spin when trans is in gear and clutch fully depressed. Is this normal?

Reply With Quote
Sponsored Links
Sponsored Links
  #2 (permalink)  
Old 05-14-2022, 03:38 AM
Tommy's Avatar
CC Member
Visit my Photo Gallery

Join Date: Feb 2002
Location: Dadeville, AL
Cobra Make, Engine: Sold my EM.
Posts: 2,175
Not Ranked     

Turning the wheels on jackstands may be ok, but it shouldn't have enough grip to move the car on level ground. . . . . Instructions for setting the pedal stop on my HTOB was to bleed the system and then have one person slowly push down on the pedal while another attempted to turn the rear wheels by hand (on jack stands). The pedal stop was set to allow the pedal to travel 1/4 inch beyond the point where the wheels could be turned.

It is not normal for the HTOB to work normally at first and then not after only 1,000 miles. I'd guess two possible reasons. One is the pedal stop was not properly set at the beginning and the HTOB was overextended at some point, causing it to leak. The other is that the gap between the HTOB and the clutch fingers was not properly set at installation. You may be able to check for a leak with a small inspection camera system, but you'd need to pull the transmission/bell housing to check the gap.
Cheetah tribute completed 2021 (
Previously owned EM Cobra
"Never attribute to malice that which is adequately explained by stupidity." - Hanlon's Razor

Last edited by Tommy; 05-14-2022 at 03:44 AM.. Reason: Correct error
Reply With Quote
  #3 (permalink)  
Old 05-14-2022, 01:23 PM
t walgamuth's Avatar
CC Member
Visit my Photo Gallery

Join Date: Jan 2018
Location: Lafayette, IN
Cobra Make, Engine: Looking to buy
Posts: 1,280
Not Ranked     

There could be an air bubble in the clutch system. I'd try to bleed it first unless you changed the stop screw setting when you had it apart.

and no imho it should not spin on jackstands.
Cobra loving, autocrossing Grandpa Architect.
Reply With Quote

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -7. The time now is 07:59 PM.

Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2022, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.0
The representations expressed are the representations and opinions of the forum members and do not necessarily reflect the opinions and viewpoints of the site owners, moderators, Shelby American, any other replica manufacturer, Ford Motor Company. This website has been planned and developed by and its forum members and should not be construed as being endorsed by Ford Motor Company, or Shelby American or any other manufacturer unless expressly noted by that entity. "Cobra" and the Cobra logo are registered trademarks for Ford Motor Co., Inc. forum members agree not to post any copyrighted material unless the copyrighted material is owned by you. Although we do not and cannot review the messages posted and are not responsible for the content of any of these messages, we reserve the right to delete any message for any reason whatsoever. You remain solely responsible for the content of your messages, and you agree to indemnify and hold us harmless with respect to any claim based upon transmission of your message(s). Thank you for visiting For full policy documentation refer to the following link: CC Policy