Club Cobra Gas - N Exhaust  

Go Back   Club Cobra > Manufacturers, Engine Builders, tools, and parts. > ERA---Speak with Bob Putnam

MMG Superformance
Nevada Classics
Main Menu
Module Jump:
Nevada Classics
Nevada Classics
MMG Superformance
Keith Craft Racing
Advertise at CC
Banner Ad Rates
MMG Superformance
Keith Craft Racing
MMG Superformance
MMG Superformance
March 2024
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            
  #1 (permalink)  
Old 12-06-2020, 09:20 AM
kevins2's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Dec 2011
Location: West Chester, PA
Cobra Make, Engine: ERA #795 427 S/C completed Jan. '14 - '68 FE 427 side oiler
Posts: 1,032
Not Ranked     
Default Jaguar rear brakes help

I have the Jaguar inboard brakes rear and recently discovered the pads are worn and need replacement. This is a bit puzzling because the front pads are fine. When the car was new, I followed the instructions in the manual and waited until the brake pads were well seated and, as instructed, didn't mess with the front/rear bias. When I tested the brakes, the fronts locked up before the rears just as they should, so I was good to go. Now, after discovering the pads are worn thin on the rear, I tested the brakes again and the rears are locking a little before the front, so over the 16,500 miles, the bias changed and it never occurred to me to test locking the brakes periodically. I'm assuming this is the cause of the premature wear.

Regardless, I'm looking for information and advice on replacing the rear pads. The manual provides the part number as Lucas/Girling GP97. Should I stick with them or consider different pads (I see a website called englishparts.com offers ceramic pads). As for the rotors, I assume I can have them turned since the mileage is relatively low - the manual lists the thickness tolerances so I can check that.

Lastly, I assume I can gain adequate access through the panel opening behind the seats by removing one seat, but not sure if I should just go ahead and remove them both.

Anyway, looking for any and all tips and advice before ordering parts.

Thanks,

Kevin
__________________
"Anyone who drives faster than you is a maniac and anyone who drives slower than you is an idiot" - George Carlin
Reply With Quote
  #2 (permalink)  
Old 12-06-2020, 11:00 AM
Grubby's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Nov 2007
Location: Clayton, IN
Cobra Make, Engine: ERA 838
Posts: 1,064
Not Ranked     
Default

I think you will need to remove both seats to get the panel out. It has been several years, and I can't remember for sure.

ERA manual part number should be fine, then adjust bias after you bed them.

John
Reply With Quote
  #3 (permalink)  
Old 12-07-2020, 10:12 AM
davids2toys's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Dec 2006
Location: Southbury, ct
Cobra Make, Engine: ERA, 428, 4 speed Toploader, Jag rear, Red with White stripes
Posts: 922
Not Ranked     
Default

Both seats and tunnel need to come out
__________________
ERA#698 428, 4 speed Toploader, 3:31 Jag rear
Reply With Quote
  #4 (permalink)  
Old 12-07-2020, 10:38 AM
CC Member
Visit my Photo Gallery

 
Join Date: Nov 2003
Location: New Britain, CT
Cobra Make, Engine: Size 10 Feet
Posts: 2,993
Not Ranked     
Default

The rear pads wearing out before the fronts is highly unusual. I'd make sure that the rest of the system (i.e. balance bar and rear master cylinder) is working correctly.

Jaguuar caliper service

Last edited by strictlypersonl; 12-07-2020 at 11:04 AM..
Reply With Quote
  #5 (permalink)  
Old 12-07-2020, 11:25 AM
joyridin''s Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Feb 2009
Posts: 1,689
Not Ranked     
Default

It could be something as simple as what the pads are made out of. There are about 100 different formulas for brake pads. It could be nothing more than the rear pads are "stickier" than the front and simply wore faster. If you didn't change the front, you may want to think about getting the same pad brand/type for both the front and the rear. I like to use EBC Greenstuff pads. If you race the car, then their Yellowstuff or Redstuff pads are better.
Reply With Quote
  #6 (permalink)  
Old 01-15-2021, 04:46 AM
DanEC's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Apr 2009
Location: Little Rock area, AR
Cobra Make, Engine: ERA Street Roadster #782 with 459 cu in FE KC engine, toploader, 3.31
Posts: 4,480
Not Ranked     
Default

Kevin - wondering if you got this sorted out yet and if you determined what caused the rapid wear?
__________________
ERA 782 Running
https://www.youtube.com/watch?v=Cfge...b1-77fqwFRu7c]
Reply With Quote
  #7 (permalink)  
Old 01-15-2021, 05:57 AM
kevins2's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Dec 2011
Location: West Chester, PA
Cobra Make, Engine: ERA #795 427 S/C completed Jan. '14 - '68 FE 427 side oiler
Posts: 1,032
Not Ranked     
Default

Dan, I re-inspected the brake pads and also inspected the rotors carefully. I also spun the rear wheels a lot and found no sign of dragging or anything wrong. There is still enough pad left to not worry about damaging the rotors, but they definitely need to be replaced soon. Also, the rotors are in perfect condition, so I'll just replace the pads this time around. I decided to go ahead and winterize the car and put it in the car bag. I'll address the brakes next season when the weather is warmer. When I replace the pads, I'll also inspect and tweak the bias bar and test to make sure the fronts are locking first. As Bob said above, this is highly unusual, so I'll keep a close watch on this after replacing and making any adjustments. As I said in my original post, I tested the brakes as instructed in the manual when the car was new (16,500 miles ago) and the fronts locked first. It never occurred to me to test them periodically and I've not had to lock up the brakes until I tested them again recently after finally noticing the wear.

Kevin
__________________
"Anyone who drives faster than you is a maniac and anyone who drives slower than you is an idiot" - George Carlin
Reply With Quote
  #8 (permalink)  
Old 01-15-2021, 07:27 AM
DanEC's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Apr 2009
Location: Little Rock area, AR
Cobra Make, Engine: ERA Street Roadster #782 with 459 cu in FE KC engine, toploader, 3.31
Posts: 4,480
Not Ranked     
Default

OK - thanks Kevin
__________________
ERA 782 Running
https://www.youtube.com/watch?v=Cfge...b1-77fqwFRu7c]
Reply With Quote
Reply

Thread Tools
Display Modes

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 02:18 AM.


Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2024, 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
Links monetized by VigLink