• 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.

Why am I having such a hard time bleeding?

  • Thread starter Thread starter Road_Clam
  • Start date Start date
R

Road_Clam

Guest
Cripes, i've been flushing an bleeding from brakes on motorcycles for the past 25 years without too much trouble (some inherantly take patients), but my '87 GSX-R has gotten to be the biggest friggin PIA to date ! I recently completely rebuilt the front 4 piston calipers with brand new OEM piston/seal kits. I am thinking a have a caliper piston that must be air bound. If I pull the brake lever, it almost goes to the bars, if i do like 3 quick pumps the brake action is rock hard ? If I wait 10 min., it get soft again. I've mighty-vac'd the lines for almost 3 hours, and i'm not getting any better brake action. Any thoughts ?
 
your new seals have revealed what was a marginal master cylinder seal?
 
Try removing the calipers and pushing the pads as close together as possible before fitting the calipers over the rotor. I had a similar issue when I rebuilt my GS front calipers and someone posted this idea here. For some reason the pads tend to pull back to the point they were at when you fit them onto the rotors. I placed the calipers so just the leading edge of the pad was fitted onto the rotor. I then slowly pushed the pads in using the brake lever and then slid the calipers the rest of the way on. My brake lever was instantly rock solid. I know of at least one other forum member who has successfully used this method to firm up the brake lever.

Thanks,
Joe
 
Joe Nardy said:
Try removing the calipers and pushing the pads as close together as possible before fitting the calipers over the rotor. I had a similar issue when I rebuilt my GS front calipers and someone posted this idea here. For some reason the pads tend to pull back to the point they were at when you fit them onto the rotors. I placed the calipers so just the leading edge of the pad was fitted onto the rotor. I then slowly pushed the pads in using the brake lever and then slid the calipers the rest of the way on. My brake lever was instantly rock solid. I know of at least one other forum member who has successfully used this method to firm up the brake lever.

Thanks,
Joe
Click to expand...


Man I did that once and had to split the calipers cos I got to excited and jammed the pistons together............
it did get the things bled though as I recall
 
Joe Nardy said:
Try removing the calipers and pushing the pads as close together as possible before fitting the calipers over the rotor. I had a similar issue when I rebuilt my GS front calipers and someone posted this idea here. For some reason the pads tend to pull back to the point they were at when you fit them onto the rotors. I placed the calipers so just the leading edge of the pad was fitted onto the rotor. I then slowly pushed the pads in using the brake lever and then slid the calipers the rest of the way on. My brake lever was instantly rock solid. I know of at least one other forum member who has successfully used this method to firm up the brake lever.

Thanks,
Joe
Click to expand...

I've posted that trick before... in fact, i just did it again last week when i put new SS lines & rebuilt calipers & MC on the front of my 1100. As Joe mentioned, just squeeze them tight enough so you can push them back on over the rotor - this always fixes that spongy lever.
 
You must log in or register to reply here.

Similar threads

NJS
My GS1100GL Story
Replies
8
Views
146
eil
eil
G
81 gs650g rear master cylinder jammed
Replies
2
Views
617
Guest
G
G
High cruise rpm, what do I have?
2
Replies
25
Views
2K
Guest
G
I
Piston Rings? Valves? Timing? All Three?
2
Replies
25
Views
4K
Isoparmesan
I
G
Brake bleeding headaches
Replies
6
Views
242
bwringer
bwringer
Back
Top