• Required reading for all forum users!!!

    Welcome!
    Register to access the full functionality of the GSResources forum. Until you register and activate your account you will not have full forum access, nor will you be able to post or reply to messages.

    A note to new registrants...
    All new forum registrations must be activated via email before you have full access to the forum.

    A Special Note about Email accounts!
    DO NOT SIGN UP USING hotmail, outlook, gmx, sbcglobal, att, bellsouth or email.com. They delete our forum signup emails.

    A note to old forum members...
    I receive numerous requests from people who can no longer log in because their accounts were deleted. As mentioned in the forum FAQ, user accounts are deleted if you haven't logged in for the past 6 months. If you can't log in, then create a new forum account. If you don't get an error message, then check your email account for an activation message. If you get a message stating that the email address is already in use, then your account still exists so follow the instructions in the forum FAQ for resetting your password.

    Have you forgotten your password or have a new email address? Then read the forum FAQ for details on how to reset it.

    Any email requests for "can't log in anymore" problems or "lost my password" problems will be deleted. Read the forum FAQ and follow the instructions there - that's what we have one for...

  • Returning Visitors

    If you are a returning visitor who never received your confirmation email, then odds are your email provider is blockinig emails from our server. The only thing that can be done to get around this is you will have to try creating another forum account using an email address from another domain.

    If you are a returning visitor to the forum and can't log in using your old forum name and password but used to be able to then chances are your account is deleted. Purges of the databases are done regularly. You will have to create a new forum account and you should be all set.

caliper

  • Thread starter Thread starter Anonymous
  • Start date Start date
A

Anonymous

Guest
the rear caliper on my gs 550m is sticking and was wondering what the best way to clean a sticking caliper would be. after using the rear brake a few times it like lockes up the back tire.

Thanks is advanced for all the info

Josh
 
I would start by cleaning the master cyl and flushing the system
 
If I am correct in assuming the brake is ok at first and only locks up after a few applications it sounds like the fluid is being trapped in the caliper and cannot return to the master cylinder. After a couple of applications the fluid gets hot and expands and applies the brake rather than returning through the line to the master cylinder. This could be caused by having the return port in the master cyl plugged up, or by the master cylinder push rod being out of adjustment so the piston is keeping the return hole covered. Unhook the pushrod from the brake pedal and make sure it is extended fully. If you have to push the rod in a little to reconnect to the pedal it is out of adjustment and could be causing the problem. If that is the case, shorten the rod some and test it again. Have you adjusted the brake pedal itself lately? Brake pedal position adjustments without rechecking the master cyl. push rod can cause this.

Hope this helps.

bob
 
after it has loocked up and if it stays engaged,crack open the bleeder and see if it releases. if it does than the problem is usually a brake hose collapse. happens with heat.works as a one way valve lets fluid flow thru but not back.if it does not release then its in the caliper it self.probably rust on the piston at the seal area oir sludge buildup.
 
You must log in or register to reply here.
Back
Top