Master Cylinder - Pirate4x4.Com : 4x4 and Off-Road Forum
 
Pirate4x4.Com : 4x4 and Off-Road Forum  

Go Back   Pirate4x4.Com : 4x4 and Off-Road Forum > Brand Specific Tech > Jeep - Non Hardcore
Notices

Reply
 
Share LinkBack Thread Tools Display Modes
Old 03-17-2006, 03:06 PM   #1 (permalink)
Registered User
 
Aubl14's Avatar
 
Join Date: May 2004
Member # 30759
Location: Peoples republic of Kalifornia
Posts: 124
Master Cylinder

I have a 45 Willys MB with stock wagoneer axles under it (disk front, drum rear brakes), with a chevy four speed. Does any one know what master cylinder i could use from a wrecking yard that would provide enough preasure to have adiquate(SP?) braking for the jeep with out a Brake booster?

I know of a guy that is using a master cylinder form a 61 chevy truck and it works good. It also has the master for the hydralic clutch. If anyone knows any other options let me know.

I am trying to avoid buying a Willwood, untill i have exhausted all options.

Also if anyone has any pictures of their brake set up i would appreachate it.

I have searched previously with soem results but not exactly what i was looking for.

Thanks

MB
__________________
67 cj5 231 sm420 d18 ect.. New project.
Aubl14 is offline   Reply With Quote Quick reply to this message
Old 03-17-2006, 03:54 PM   #2 (permalink)
 
Join Date: Jun 2004
Member # 32187
Posts: 318
I'm in the same boat. Still researhing but from my research (search is broken most of the time lately) here is some info (hope it helps).

Any disc/drum master will work (w/1" bore). What you want is the lines to connect on the correct side (engine side or fender side of the master) and correct bolt up to firewall. Several guys report 77-78 CJ masters work great.

Need 2 pounds residual presure to the disc & 10 pounds to the drums ...combination valve (has residual to front & proportioning (60/40?) to rear) & a 10 pound residual valve to rear is my plan with the Jeep CJ master.

www.mpbrakes.com is a good source of info, get their catalog free, great trouble shooting & design sections.

From another Form:
"Best bet for manual Disc/Drum is a 1972-1976 "A" Series GMC master cylinder of a manual drum/disc car (El camino, Nova, Firebird etc). It's a 1 inch bore set for manual disc brakes. The port sizes are 1/2 x 20 (disc) and 9/16 x 20 (drum), the lines go towards the wheel well. You'd remove your rod from your CJ and use it on this one, I am not sure if the rod would need to be modified as I am in the power brake field, not the manual brake field.

It's also best to forget about the pressure valves, or using a early disc m/c that came with them built in. As someone mentioned rebuilders LOVE to not put them in, even Wagner, Raybestos and others who sell new M/Cs don't put them in. Just get a later prop valve (76+) of any Disc/drum vehicle and use it. The later model valves do the same thing, the hold pressure to the rears while at the same time reducing the amount of fluid so your rears don't lock up first."

Hope this helped some, lets us know how it turns out.
GoldToyBox is offline   Reply With Quote Quick reply to this message
Sponsored Links
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Pirate4x4.Com : 4x4 and Off-Road Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.

** A VERIFICATION EMAIL IS SENT TO THIS ADDRESS TO COMPLETE REGISTRATION!! **

Email Address:
Insurance
Please select your insurance company (Optional)

Log-in


Thread Tools
Display Modes

Posting Rules
You may post new threads
You may 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 06:50 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 ©2011, Crawlability, Inc.
User Alert System provided by Advanced User Tagging (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.