Would unequal drums cause a brake cylinder to not fully release? - 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 03-29-2007, 06:39 AM
Registered User
Join Date: Dec 2005
Location: stafford va
Posts: 10
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Would unequal drums cause a brake cylinder to not fully release?

Summary: R side front drum used to run hot and grab. After changing brake shoes, now L side front drum runs hot and grabs? Front drums do not have equal run out.

2 years ago I had a brake shoe go bad and render the brake drum unservicable as well on the passenger side of an all-drum '72 Ford F100. I replaced both of the front brake shoes, but only the passenger (R) side drum. The truck pulled to that side when braking, but more important to me the passenger side cylinder usually stuck and that wheel ran hot. About a year ago I switched the front drums by rotating the original drum to the R side and the newer drum to the L side (after reading that helped someone on this forum with similar situation). The R side cylinder still stuck and made the wheel run hot. Early this month the R side shoes wore out again so I replaced both sides' shoes.

Now the Driver (L) side grabs when braking, and runs hot because the cylinder is not fully releasing. I understand that by not replacing both drums 2 years ago I would have the brakes pulling, but I wonder if the unequal drums are also the source of the brake cylinder not releasing fully? Or is this problem likely caused by something else between the master cylinder and drums on the front?

I replaced the master cylinder and vacuum booster last summer cause they were leaking. No change then to which side grabbed ran hot.

Reply With Quote Quick reply to this message
Sponsored Links
  #2 (permalink)  
Old 03-29-2007, 07:36 AM
brian0605's Avatar
mostly confused

Last journal entry:
Last photo:
Join Date: Dec 2006
Location: central mississippi
Age: 47
Posts: 589
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
A brake line can cause the wheel cyl. to not release. Jack up the wheel with the problem and see if you can spin it by hand, if you can't urn it or it has excessive drag, try loosening the brake line and see if it then rotates freely. If it does then the problem is most likely the rubber brake hose. Good luck Brian
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 03-29-2007, 06:47 PM
Registered User
Join Date: Dec 2005
Location: stafford va
Posts: 10
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Thanks for info. I will do the checks you suggested after work tomorrow, rebleed the line, and see if that either fixes it or I can tell where the flow may be fouled.
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
Bleeding Wheel cylinder on a 91 corolla ramvrao Suspension - Brakes - Steering 1 03-20-2003 03:38 PM
Can't Get Brake Drums Off PrimaDude Transmission - Rearend 4 11-29-2002 02:21 PM
ford 38 juicy brake + buick aluminium drums pierreher Suspension - Brakes - Steering 4 07-19-2002 05:06 PM
rear brake drums ron396 Suspension - Brakes - Steering 7 07-16-2002 01:04 PM
brake drums fullmooncp Suspension - Brakes - Steering 2 01-17-2002 12:31 PM

All times are GMT -6. The time now is 04:46 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.