Brake problem - Page 2 - Hot Rod Forum : Hotrodders Bulletin Board -- 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
  #16 (permalink)  
Old 05-13-2013, 02:52 PM
Registered User
Last photo:
Join Date: Jan 2010
Location: Oregon
Posts: 179
Wiki Edits: 0

Thanks: 1
Thanked 6 Times in 5 Posts
This is the setup I am using:

When my pedal is at it's neutral position the booster linkage and pedal pivot are pretty much straight up and down from one another, but I don't think that should make a difference since I have the booster shaft fully extended out in the pedals neutral position.

I also noticed when I apply the brakes with the master cylinder lid off that fluid will jet up from the bottom of the resevior. I take it this is normal?

I noticed in the picture of the GM combo valve below that it says to hold the metering valve when bleeding the front brakes. I have just been bleeding the brakes the conventional way with pumping the pedal. Is this metering valve really necessary to properly bleed the front brakes?

Reply With Quote Quick reply to this message
Sponsored Links
  #17 (permalink)  
Old 05-17-2013, 12:15 PM
bubbahotep's Avatar
Registered User
Last photo:
Join Date: Aug 2008
Location: NYC
Age: 45
Posts: 491
Wiki Edits: 0

Thanks: 1
Thanked 2 Times in 2 Posts
If your brakes were locking up and then got better after you let the truck sit: you have the brake booster arm (where it goes into the master cylinder) out too far. You have the master cylinder partially compressed causing pressure to build every time you hit the pedal

Reduce the length at least 1 full turn in. They say 1/64" of play is ok but you can have more and still have a good pedal. Regardless, brakes rubbing and locking upward usually the booster arm is too long

Going farther back you said the pedal goes to the floor and you eventually found a leak. That should be the fix. If the pedal still drops then you're still losing fluid somewhere

Fluid squirting up from the master cylinder (with the cap off) is normal.

The combination valve you're picturing would have no effect on bleeding. If its not working properly you'd have hard brakes in the front or rear only. There's a way to test the valve position with a bulb but I don't think it's necessary

Hard pedal with engine off is normal and tells little.

Fix the brake booster rod length first.
Reply With Quote Quick reply to this message
  #18 (permalink)  
Old 05-18-2013, 12:46 PM
T-bucket23's Avatar Moderator
Last wiki edit: Engine basic condition - how to check Last photo:
Join Date: Aug 2005
Location: Massachusetts
Age: 59
Posts: 6,425
Wiki Edits: 26

Thanks: 34
Thanked 360 Times in 305 Posts
Are you sure you have the front calipers on the right way. The bleeder needs to be at the top. If it isnt you can bleed them forever and you will never get the air out. I have seen this several times and is an easy mistake to make.
Artificial Intelligence is no match for Natural Stupidity

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
brake problem ratman1927 Suspension - Brakes - Steering 1 01-08-2008 05:25 PM
brake problem lawguy Suspension - Brakes - Steering 6 02-01-2007 05:45 PM
Brake problem?? cabrio Suspension - Brakes - Steering 2 05-14-2006 05:52 PM
Brake Problem 35 buick40 Suspension - Brakes - Steering 7 02-06-2006 07:30 PM
Brake problem NEED HELP 74huggerorange Suspension - Brakes - Steering 7 02-27-2003 06:46 PM

All times are GMT -6. The time now is 06:34 PM.

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 1999 - 2012. All Rights Reserved.