Rear Discs
Author
Discussion

the_ferret82

Original Poster:

25,627 posts

215 months

Sunday 13th December 2009
quotequote all
it has been noted i may need new rear disc's to get my car though the MOT, as there is a little bit of surfice rust on the rear of the discs, not that it affects there perfomance but it is an MOT fail.

Monkfish pointed this out during its last service and gave me a quote for new discs but also suggested getting them skimmed.

so my question here is does any one know where to get discs skimmed and how much it may be? or does anyone have a set fo rear discs they would liek to sell. all though i have a CV8 i have the VXR / HSV discs and callapers fitted.

or does anyone else has any suggestions

granada203028

1,500 posts

228 months

Sunday 13th December 2009
quotequote all
I had the front ones done on my Omega approx 5 years ago for £20 each by a local automotive engineering company, here in North Bristol. The actual process I think is grinding as they had a matt finish without any machine marking.

False economy in the case of the Omega though as new EBC ones were only approx £30.

Moanro5.7

7,337 posts

210 months

Sunday 13th December 2009
quotequote all
granada203028 said:
I had the front ones done on my Omega approx 5 years ago for £20 each by a local automotive engineering company, here in North Bristol. The actual process I think is grinding as they had a matt finish without any machine marking.

False economy in the case of the Omega though as new EBC ones were only approx £30.



If you had the standard barkes on your CV8 you could get Ebc but because you have the HSV discs which i think are around 300mm+ they dont do them. and a pair of them would of been around £100 + vat

neiljohnson

11,298 posts

238 months

Sunday 13th December 2009
quotequote all
the_ferret82 said:
it has been noted i may need new rear disc's to get my car though the MOT, as there is a little bit of surfice rust on the rear of the discs, not that it affects there perfomance but it is an MOT fail.

Monkfish pointed this out during its last service and gave me a quote for new discs but also suggested getting them skimmed.

so my question here is does any one know where to get discs skimmed and how much it may be? or does anyone have a set fo rear discs they would liek to sell. all though i have a CV8 i have the VXR / HSV discs and callapers fitted.

or does anyone else has any suggestions
The discs have to be very bad to fail on corrosion, ie completly rusty to the point the brake clearly is not working. As long as it passes the roller brake test it should be fine although i know at less honest garages than mine they have been known to fail when they shouldnt. In over 5 years as a tester i doubt ive failed any more that a dozen cars on it, mostly porsche for some reason they are very prone to it.

ARAF

20,759 posts

254 months

Sunday 13th December 2009
quotequote all
neiljohnson said:
mostly porsche for some reason they are very prone to it.
Many are not used often enough, so any little bit of rust gets time to really eat in.

neiljohnson

11,298 posts

238 months

Sunday 13th December 2009
quotequote all
ARAF said:
neiljohnson said:
mostly porsche for some reason they are very prone to it.
Many are not used often enough, so any little bit of rust gets time to really eat in.
Even daily use ones seem to suffer from it always the inner face on the front, trouble is it eats into the drilled holes and they crack!

Tattooboy

7,946 posts

209 months

Sunday 13th December 2009
quotequote all
the_ferret82 said:
it has been noted i may need new rear disc's to get my car though the MOT, as there is a little bit of surfice rust on the rear of the discs, not that it affects there perfomance but it is an MOT fail.

Monkfish pointed this out during its last service and gave me a quote for new discs but also suggested getting them skimmed.

so my question here is does any one know where to get discs skimmed and how much it may be? or does anyone have a set fo rear discs they would liek to sell. all though i have a CV8 i have the VXR / HSV discs and callapers fitted.

or does anyone else has any suggestions
I have had slight rust on the inner face of my rear discs since i've had the car due to little use and my car passed it's MOT without any problems whatsoever. All I have done now is had Monkfish fit the High performance harder friction pads all round as I had slight brake judder due to the rust, these have been on about 4 weeks now and the judder has gone. i would suggest stick it in for an MOT and see what happens, if it passes, just have a set of these pads fitted and the problem should go.

the_ferret82

Original Poster:

25,627 posts

215 months

Sunday 13th December 2009
quotequote all
thanks for the info gents...

luckyly i know the mot tester so it will help and ill see how it goes and keep you all posted. worst come to worst.. it will be a quick dash to roger.

baz8046

25 posts

237 months

Monday 14th December 2009
quotequote all
I have a used pair of rears in my shed from when I had AP's fitted. Let me know if I can help.

the_ferret82

Original Poster:

25,627 posts

215 months

Monday 14th December 2009
quotequote all
baz8046 said:
I have a used pair of rears in my shed from when I had AP's fitted. Let me know if I can help.
very handy to know....

YHM