under floor master-cylinder - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum

Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Suspension - Brakes - Steering
User Name
lost password?   |   register now

LinkBack Thread Tools
  #1 (permalink)  
Old 01-07-2013, 01:38 PM
Registered User
Join Date: Aug 2006
Location: iowa
Posts: 34
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
under floor master-cylinder

another master cylinder question.. its a little different then the one just below. I am getting ready to run brake lines on my 52 chevy, I have installed an under floor dual power master cylinder, I have disc on the front and drum on the rear. I found a pic of how to run the lines with the 2 psi residual pressure valve in the front and the 10 pound residual pressure valve in the rear along with a adj portioning valve in the rear. I'm good with that.. My main question is "Is a combination valve really neccessary with the above set up? The diagraphm I have does not show one. I also have a "T" to put my brake light switch in. Thanks

Reply With Quote Quick reply to this message
Sponsored Links
  #2 (permalink)  
Old 01-07-2013, 03:21 PM
Irelands child's Avatar
Registered User
Last wiki edit: Ford engine specifications Last photo:
Join Date: Jan 2005
Location: Upstate New York
Posts: 5,368
Wiki Edits: 8

Thanks: 59
Thanked 530 Times in 410 Posts
I can't imagine why that 'combination' valve keeps coming up. I'm assuming (scary word) that you are going to be using someones aftermarket brake assembly, most of which use a '70's Corvette master cylinder. That arrangement you described will work - 2psi residual valve in the front, 10 psi in the rear along with the proportioning valve with the brake switch teed off the line.

A couple of comments - a mechanical brake light switch somewhere on the brake pedal linkage will save at least three leak possible places (I'm using the hydraulic switch too). There are two configurations of those switches to make life interesting - lights on against the spring action or with. Then, make sure you plumb the MC correctly - the big reservoir is for the front brakes and you may have to actually cross lines as that MC is now being mounted backwards from the usual OEM configuration. Some aftermarket versions have that fixed though with two sets of outlets. Also, make sure that the MC doesn't have a check valve built in - some OEM versions do.

A note - that configuration you described is pretty close to what I have on my '31 Ford though I do have 4 wheel discs - and it has worked well for several years
Irelands child
Reply With Quote Quick reply to this message

Recent Suspension - Brakes - Steering posts with photos

Quick Reply

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Please select your insurance company (Optional)


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools

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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Floor mounted Master cylinder siwel Suspension - Brakes - Steering 1 12-02-2011 09:48 AM
master cylinder wayneooo Suspension - Brakes - Steering 1 09-19-2010 02:32 PM
master cylinder 87MonteCarloSS Suspension - Brakes - Steering 2 09-04-2009 07:32 AM
mounting master clyinder under floor, how to locate? 427v8 Suspension - Brakes - Steering 6 02-20-2009 02:28 PM
Master Cylinder smeech Suspension - Brakes - Steering 2 07-15-2005 06:34 AM

All times are GMT -6. The time now is 06:51 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.