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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?

Re: Brake Disk Questions
Posted: Mon Aug 10, 2009 10:15 am
by r055
driving with the handbrake on?

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?

Thanks

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
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
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?

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
Chris
Re: Brake Disk Questions
Posted: Mon Aug 10, 2009 1:32 pm
by BiggestNizzy
having moved over to MMC's recently they are miles better than whatever the guy I bought the car off had on it

Re: Brake Disk Questions
Posted: Mon Aug 10, 2009 1:38 pm
by Kayfur
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.

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.

Re: Brake Disk Questions
Posted: Tue Aug 11, 2009 11:34 am
by tut
BiggestNizzy wrote:
having moved over to MMC's recently they are miles better than whatever the guy I bought the car off had on it

Snap, MMC's rock.
tut