• 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.

Correct orientation of metal disc in front brake master cylinder?

2BRacing

2BRacing

Forum Mentor
I am getting a GS650G baby Katana ready for the road again after standing for a long time, and replacing all the rubber parts in the front and rear brakes.

When I took the front master cylinder apart, I did not take proper note of the orientation of the shiny metal disc that is located between the piston and primary cup/spring.

That shiny copper-coloured metal disc (not sure of proper name?) is not flat, but has a "hollow" side and a "rounded" side.

What is the correct orientation of this disc: with the "hollow" side against the piston, or with the "hollow" side against the rubber primary cup on the spring? Not sure if it will make a difference, but I would like to get the orientation correct. Thanks!


Front%20master%20cylinder_zpslsfafh5u.jpg
[/IMG]
 
usually there will be some light witness marks on the piston side of the disc if you really want to know what side was what.
 
chuck hahn said:
usually there will be some light witness marks on the piston side of the disc if you really want to know what side was what.
Click to expand...

After inspecting the disc with a magnifying glass, I did find some marks indicating that the hollow side was against the rubber primary cup. The disc in the new OEM piston kit also had a "hollow" side (looking like a half moon), so I installed it like that again.

Thanks guys!
 
You must log in or register to reply here.
Back
Top