AO Platinum Member
Join Date: Feb 2002
Location: The land that Time forgot
Re: Brake Pad Question????
Is the new pad's backing plate the same shape and size as the old one ? If it is, then it's the correct pad... if it isn't, it's the wrong pad.
If the new pad doesn't "fit" flush against the disc because of the lip, then the lip is the problem. As the disc wears, the unswept area doesn't... so it's pretty normal. A lip can be ground off and teh disc re-faced ("squared") relatively cheaply
If the lip is very pronounced you should check the thickness of the disc. Discs have a minimum thickness (10~12mm.. it'll be stamped on the disc hub .. you may have to remove some dirt/rust to see it).
You can grind and re-machine discs to you hearts content as long as you don't go below this thickness. If your discs are anywhere near the minimum width, change them.
Too thin discs can warp.. not necessarily fatal.. or (when the new pad wears) could cause the pad or brake piston to fall out.. as they will be over-extended as they wear. Which is more serious.
Once you fitted new pads, also bleed the brakes.
No bullets for Chaingun..