...

Go Back   Lateral-g Forums > Technical Discussions > Brakes
User Name
Password



Reply
 
Thread Tools Display Modes
  #1  
Old 11-19-2017, 08:46 PM
cheapta cheapta is offline
Member
 
Join Date: Dec 2008
Posts: 63
Default Need M/C recommendation

Hi-I haven't posted here in forever but I'm at my wit's end with my 69 Z/28. Years ago I installed 79 Trans Am rear discs on the car, it's factory 69 disc fronts. I tried using the factory 69 M/C-as you might expect, no pressure to the rear brakes. I than installed a factory 79 T/A master and, once again, no pressure to the rear brakes. I should state that I also have an adjustable prop valve plumbed into the rears. The third try was a 69 Corvette M/C and-you guessed it-no pressure to the rears. I pulled the M/C off the car this week-I also happen to have a C3 Vette project car so I pulled that M/C off for comparison purposes. The Corvette master mounted on the Camaro booster seemed to be bottoming out when the pedal was pressed, I could actually see the master move at the bottom of the stroke. Here's what I don't get-the holes in the Camaro and Corvette M/C where the pushrod goes are identical. Does anybody have a recommendation as to what M/C I should use? I haven't driven the car in probably 4-5 years because of this and I've vowed to have it working for next driving season.

Thanks,

Peter-
Reply With Quote
  #2  
Old 11-19-2017, 10:58 PM
GregWeld's Avatar
GregWeld GregWeld is offline
Lateral-g Supporting Member
 
Join Date: Jul 2005
Location: Sun Valley, ID
Posts: 19,692
Default

Sounds to me like the prop valve is the issue... perhaps plumbed incorrectly?
__________________
'40 Ford Pickup project - @ Custom Hot Rods of Andice https://www.customsandhotrodsofandice.com/


** New project ** Ron Sutton GT TRACK WARRIOR '70 Mustang widebody - Tube chassis - 700hp LS7 - PPG 6 speed sequential trans - big aero - big tars....

'65 Mustang track car ("Old Yellar")

'07 Mustang track car ("BigWing") -- FOR SALE $35K

'08 Lotus 2 11 track car ------ SOLD - Thank you SW!
Reply With Quote
  #3  
Old 11-20-2017, 04:25 AM
dhutton dhutton is online now
Senior Member
 
Join Date: Nov 2006
Location: Mountain Springs, Texas
Posts: 1,267
Default

Probably a stupid question but is the prop valve turned the right direction? For me at least the direction you turn it was counterintuitive. You might have it set for min rear brakes.

Don
Reply With Quote
  #4  
Old 11-20-2017, 07:42 PM
cheapta cheapta is offline
Member
 
Join Date: Dec 2008
Posts: 63
Default

Thanks for the replies-I'll certainly check for correct plumbing of the prop valve. Wish me luck!
Reply With Quote
  #5  
Old 11-20-2017, 08:16 PM
dhutton dhutton is online now
Senior Member
 
Join Date: Nov 2006
Location: Mountain Springs, Texas
Posts: 1,267
Default

Quote:
Originally Posted by cheapta View Post
Thanks for the replies-I'll certainly check for correct plumbing of the prop valve. Wish me luck!
I was trying to say make sure the knob is not turned for minimum brakes...

Don
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

Forum Jump


All times are GMT -5. The time now is 08:46 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2018, vBulletin Solutions Inc.
Copyright Lateral-g.net