Front brake discs

Moderators: Lashman, Keith Halstead, Steve 155C

Post Reply
Tomtecno
Learner Driver
Posts: 20
Joined: Thu Jan 18, 2018 11:51 am
LCR Membership Number: 0

Front brake discs

Post by Tomtecno » Thu Jul 19, 2018 10:26 am

Does anyone know what the minimum thickness should be for Mk1 front discs?
I can find info on max runout but nothing for thicknesses.
Thanks
Tom

User avatar
Keith Halstead
Moderator
Posts: 3824
Joined: Tue Nov 28, 2006 1:00 am
LCR Membership Number: 1711
Location: Essex

Re: Front brake discs

Post by Keith Halstead » Thu Jul 19, 2018 8:09 pm

0.375 inch or 9.525 mm.

Tomtecno
Learner Driver
Posts: 20
Joined: Thu Jan 18, 2018 11:51 am
LCR Membership Number: 0

Re: Front brake discs

Post by Tomtecno » Tue Jul 24, 2018 11:42 am

Thanks Keith.

User avatar
tommy
Woodrim
Posts: 1582
Joined: Fri Feb 09, 2007 1:00 am
LCR Membership Number: 1693
Location: Larne Co. Antrim N.Ireland

Re: Front brake discs

Post by tommy » Sun Jul 29, 2018 1:16 pm

Would depend if it's got P14 or P16 brakes. P16 disc thicker. My 1960s copy of the Girling brake service manual, which covers the lotus cortina, quotes that the maximum that can be machined off the disc thickness is 1.2mm (50 thou), half of which has to be removed evenly from both sides of the disc.

Post Reply