• 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.

Do you know where your calipers have been?

twr1776

twr1776

Forum Mentor
These is a picture of my OEM front caliper. :eek: This bike has always been garage kept but never had the brake fluid changed. It sat for 5 years in the 90's and the last two years waiting for the progressives, etc to show up. If you have not rebuilt your calipers or are at least flushing the system every couple of years this is what the inside of your calipers looks like. Worse if the bike has ever been outside for any length of time. I almost was going get lazy and try and run these until Fall after the mods but needless to say I am glad I decided to go ahead and do the rebuilds. If you have not done yours yet or don't know the last time they were done and by who, it is time.

ProgressivePics066-1.jpg
 
This post should be a sticky! Tearing apart the caliper is the only way to clean out the gunk, flushing doesn't get it.

Don't forget to change the brake lines as well; the lines develop scale just like shown inside this caliper and changing the line is the only way to get rid of the gunk.
 
twr1776 said:
These is a picture of my OEM front caliper. :eek: This bike has always been garage kept but never had the brake fluid changed. It sat for 5 years in the 90's and the last two years waiting for the progressives, etc to show up. If you have not rebuilt your calipers or are at least flushing the system every couple of years this is what the inside of your calipers looks like. Worse if the bike has ever been outside for any length of time. I almost was going get lazy and try and run these until Fall after the mods but needless to say I am glad I decided to go ahead and do the rebuilds. If you have not done yours yet or don't know the last time they were done and by who, it is time.

ProgressivePics066-1.jpg
Click to expand...


Ha thats nothing if I can find the pic some where when I took my CB550F's front apart it had some sort of weird jelly in there and no matter how much I ran new fluid threw the lines it still came up dirty......:D
 
nisom512 said:
Ha thats nothing if I can find the pic some where when I took my CB550F's front apart it had some sort of weird jelly in there and no matter how much I ran new fluid threw the lines it still came up dirty......:D
Click to expand...


Brown Jello. Yuk. I went through the same thing with my 84 kat. Agree with Nessism - get new lines because that Jello doesn't wash out.
 
Just be careful of the oxidation, I was cleaning out a crusty master cylinder the other day and got a good wiff of the dust. I was choking on the stuff, its pretty toxic.
 
I rebuilt the rear on my GK and the damn thing still sticks. Must have a small 'pit' or groove that I missed.

Oh well off it comes again. :(
 
Zooks, I ended up using a dental scaler type pick with VERY light pressure in the seal and dust boot grooves ONLY to get them clean. After I got the main junk out I cut some narrow strips of the green scrubbing pads and used the flat side of the pick to put pressure on the groove area only. That and lots of brake cleaner. :eek:
 
You must log in or register to reply here.
Back
Top