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Brake Disk Questions

Posted: Mon Aug 10, 2009 9:57 am
by Neil72
The rear disks on my Elise appear to be wearing quicker than the fronts......is that normal ?

I would have expected a mid engined car to be less harsh on the front disks but not to the extent that the rears wear out quicker.

Also, does anyone know minimum disk thickness front/rear before they should be chucked and replaced ?

Re: Brake Disk Questions

Posted: Mon Aug 10, 2009 10:03 am
by MacK
My S2 service manual states: New disc; 26.0mm Service minimum; 24.9mm

I don't recall my rears wearing more than my fronts, too many handbrake turns? :mrgreen:

Re: Brake Disk Questions

Posted: Mon Aug 10, 2009 10:15 am
by r055
driving with the handbrake on? :lol: :blackeye

Re: Brake Disk Questions

Posted: Mon Aug 10, 2009 10:15 am
by Neil72
MacK wrote:My S2 service manual states: New disc; 26.0mm Service minimum; 24.9mm

I don't recall my rears wearing more than my fronts, too many handbrake turns? :mrgreen:
Thanks :thumbsup I'll dig out the micrometer and see what they're at.

Doesn't sound like much wear.....that's only 0.55mm on each side of the disk :shock:

My handbrake turn days could be over if that's the case :(

Re: Brake Disk Questions

Posted: Mon Aug 10, 2009 10:21 am
by Neil72
r055 wrote:driving with the handbrake on? :lol: :blackeye
I'll try letting it off next time to see if that helps :mrgreen: :blackeye

Re: Brake Disk Questions

Posted: Mon Aug 10, 2009 10:43 am
by Kayfur
MacK wrote:My S2 service manual states: New disc; 26.0mm Service minimum; 24.9mm

I don't recall my rears wearing more than my fronts, too many handbrake turns? :mrgreen:
I seem to remember that the 24.9mm minimum is a misprint in the S2 service manual - it should be less but I can't remember the actual value. Try a search on here or on SELOC.

Kevin

Re: Brake Disk Questions

Posted: Mon Aug 10, 2009 10:48 am
by Kayfur

Re: Brake Disk Questions

Posted: Mon Aug 10, 2009 12:23 pm
by vxc
i found me rears wear more last time i checked

Re: Brake Disk Questions

Posted: Mon Aug 10, 2009 1:17 pm
by Corranga
Brake disks wear?!

MMCs rule :blackeye

Chris

Re: Brake Disk Questions

Posted: Mon Aug 10, 2009 1:32 pm
by BiggestNizzy
:withstupid

having moved over to MMC's recently they are miles better than whatever the guy I bought the car off had on it :D

Re: Brake Disk Questions

Posted: Mon Aug 10, 2009 1:38 pm
by Kayfur
Kayfur wrote:found a reference to it

http://www.scottishelises.com/phpbb/vie ... sc#p197963
so - it should read :

New : 26.15 mm
Service Minimum : 24.0mm

Re: Brake Disk Questions

Posted: Mon Aug 10, 2009 6:13 pm
by MacK
After I posted it I remembered the 'debate' but couldn't remember what the facts were.

Thanks for the reminder and clarification.

:thumbsup

Re: Brake Disk Questions

Posted: Tue Aug 11, 2009 10:43 am
by Dominic
Handbrake turns don't wear the brakes; the brakes are fully locked; no wear..... it' s the tyres that get the wear. :roll: :thumbsup

Re: Brake Disk Questions

Posted: Tue Aug 11, 2009 11:34 am
by tut
BiggestNizzy wrote::withstupid

having moved over to MMC's recently they are miles better than whatever the guy I bought the car off had on it :D
Snap, MMC's rock.

tut