SUPPORT OUR SPONSOR

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

MMG Superformance
Nevada Classics
MMG Superformance
Main Menu
Nevada Classics
Nevada Classics
MMG Superformance
Advertise at CC
Banner Ad Rates
Keith Craft Racing
MMG Superformance
MMG Superformance
Keith Craft Racing
January 2026
S M T W T F S
        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 31

Kirkham Motorsports

 
 
LinkBack Thread Tools Rate Thread Display Modes
Prev Previous Post   Next Post Next
  #9 (permalink)  
Old 10-25-2010, 01:51 PM
kitcarbp's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jun 2004
Location: Potomac, MD
Cobra Make, Engine: West Coast, 460 Ford Racing Crate w/ TREMEC TKO 600
Posts: 732
Not Ranked     
Default Update

So I made a crude GO NO-GO gauge from copper wire and I measured the total movement of my Mcleod HTOB and my crude wire "gauge" measured about 0.390" of HTOB movement for my total clutch pedal travel to the floor board. The Mcleod info i have, states 0.375" PP finger movement is required to release the disc. This make sense so far because, I also placed the car up on ramps while in gear with engine off and confirmed the clutch disc does in fact release upon pressing the clutch pedal down about 3/4 way, and the car rolls off the ramps. I still have just 1.0" of master cylinder travel compared to 1.10" possible. I also confirmed I would have to remove my pedal stop completely to get more than 1.0" stroke at the MC. May try this tonight to get 1.1 " at MC to see if I can get 0.420" or more total travel @ HTOB. It seems the PP is not fully releasing the disc and keeps spinning the input shaft.

I also attached my Mity-Vac brake bleeder hand pump to the HTOB bleed line and tried to pull any trapped air out of the assembly. After pulling more than 20 oz. of fluid through it with the Mity-Vac hand pump , I am still seeing air bubbles coming out of the bleed line! (reservoir was always kept 3/4 full, it never dropped too low during the bleed process)

I am still stumped, where is the air coming from ? I have yet to try the old fashion pump the pedal and bleed with a helper. Do I need to go back and open the Master Cly bleed screw on my Wilwood MC and re-bleed the MC ? My belief is that @ 0.390" its still not enough PP movement to completely stop the input shaft from turning. I can still move the HTOB bearing another 0.120" before I over extend it, 0.500" is max travel of the HTOB according to Mcleod.

What I have not confirmed yet is if the HTOB piston is moving proportionally
to the MC stroke of 1.0", if it does not, its got air in the lines (which the bubbles are confirming) Dah !.

I'll be back at it this week, any other tidbits appreciated.

Thanks
__________________
"...some assembly required, ages 8 and up...... well that took longer than expected......

Last edited by kitcarbp; 05-23-2011 at 10:09 AM..
Reply With Quote
 



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 11:36 AM.


Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2026, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.0
The representations expressed are the representations and opinions of the clubcobra.com 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 clubcobra.com 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. clubcobra.com 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 clubcobra.com. For full policy documentation refer to the following link: CC Policy