Brake Discs wear limits.

[captain chaos]

What tolerances can I work to for deciding if I need new discs. The current ones have been on the car since new, about 12,000 miles done now, and I was wondering if there was a measurement i could make to indicate the wear rate? (Vx, big brakes all round)

 

Thanks

[JAG]

Disc thickness is usually specified on the disc. Something like;

 

"Min Thickness 10"

 

That would be about right for a 12mm thick solid disc. Check yours - the marking can be anywhere on the disc. Perhaps on the disc edge or marked on the bell somewhere.

 

 

Justin

 

A closed mouth gathers no foot.

[captain chaos]

Cheers JAG

[Paul McKenzie]

Markings are on the disc edge which is great when they're new, but illegible a week later

 

Specs. posted recently by someone who appeared to know were:

 

New 10.16mm = 0.400"

Min 8.3mm = 0.327"

 

Edited to say ignore the above..which is for standard discs, not big 'uns 😳

 

Paul

 

Edited by - Paul McKenzie on 11 Apr 2005 18:23:41