Disc skimming?

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Discussion

Pica-Pica

Original Poster:

15,145 posts

98 months

Tuesday 25th October 2022
quotequote all
Anyone had this done - on the car?
https://skimmydiscs.co.uk/your-nearest-service-cen...
My offside discs got quite pitted (MOT was OK, but advisory, last year). I had both of the front discs and pads replaced this summer, as they were quite low anyway. However, the rear offside disc may be OK with just a skim.
I am especially interested in the on-car skimming.

Car is a 335d F30 with the larger discs, for information.

(I believe the cause of the rusty/pitted discs was low usage during CoVID and then got splattered with gritting salt last winter - street parking only - repeated heavy braking would not get rid).

Smint

2,314 posts

49 months

Wednesday 26th October 2022
quotequote all
Only once had discs skimmed, Renault 21 back in the day, new discs were expensive and i was broke so trying to save a few quid had them skimmed at an engineering shop...couple of months later one of them developed a crack so had to buy new discs anyway.

The only vehicles i would consider skimming would be on something like a Rover P6 (inboard rear discs, would the people you link to be able to skim those) or one of the few peculiar designs out there where discs are fitted from behind the hub...oddities like Matiz, some Transits and Hyundai Coupes had this design, where you have to remove the hub because the disc is fitted from inside the hub, ridiculous design which makes Hyundai Coupe disc renewal a seriously expensive job as when you separate the hub the bearing is often ruined and they are pressed in to boot.

For most normal design cars discs are so cheap (quality aftermarket just as good as OE) would skimming be worth it.


Pica-Pica

Original Poster:

15,145 posts

98 months

Wednesday 26th October 2022
quotequote all
Thanks. My instinct is to replace the discs. Just asking, in case someone said skimming worked out well.

Waitforme

1,306 posts

178 months

Friday 4th November 2022
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I thought disc skimming was a thing of the past given how relatively cheap they are nowadays.
I suppose though if you have access to machinery then it’s worth a go, just bear in mind the minimum thickness.

dontlookdown

2,143 posts

107 months

Friday 4th November 2022
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Nothing wrong with it in principle, provided there is enough meat left in the worn disc to skim it and stay above min thickness.

But unless new discs are particularly expensive or hard to get, for your car, you may not save much by doing it.

stevieturbo

17,746 posts

261 months

Friday 4th November 2022
quotequote all
Waitforme said:
I thought disc skimming was a thing of the past given how relatively cheap they are nowadays.
I suppose though if you have access to machinery then it’s worth a go, just bear in mind the minimum thickness.
Most are pretty cheap, some can be very expensive though

julian64

14,317 posts

268 months

Friday 4th November 2022
quotequote all
I tend to skim discs every time I change pads.
I have a decent home milling machine so its easy for me to skin discs and it costs me nothing

When I find it works well is if the brakes are squealing. Skimming the disc normally sorts it all out

Also it gets rid of that annoying lip which always forms on the outside of the disc and destroys new pads

thebraketester

15,001 posts

152 months

Friday 4th November 2022
quotequote all
Pica-Pica said:
Thanks. My instinct is to replace the discs. Just asking, in case someone said skimming worked out well.
Replace them.

I had some 2 piece ap racing discs reskimmed and whilst it fixed the issue initially, it did come back and ultimately it was a waste of money.

CraigyMc

17,857 posts

250 months

Sunday 13th November 2022
quotequote all
thebraketester said:
Pica-Pica said:
Thanks. My instinct is to replace the discs. Just asking, in case someone said skimming worked out well.
Replace them.

I had some 2 piece ap racing discs reskimmed and whilst it fixed the issue initially, it did come back and ultimately it was a waste of money.
The expert has spoken

thebraketester

15,001 posts

152 months

Sunday 13th November 2022
quotequote all
CraigyMc said:
thebraketester said:
Pica-Pica said:
Thanks. My instinct is to replace the discs. Just asking, in case someone said skimming worked out well.
Replace them.

I had some 2 piece ap racing discs reskimmed and whilst it fixed the issue initially, it did come back and ultimately it was a waste of money.
The expert has spoken
Absolutely not an expert, just sharing direct experience. :-)

CraigyMc

17,857 posts

250 months

Sunday 13th November 2022
quotequote all
thebraketester said:
CraigyMc said:
thebraketester said:
Pica-Pica said:
Thanks. My instinct is to replace the discs. Just asking, in case someone said skimming worked out well.
Replace them.

I had some 2 piece ap racing discs reskimmed and whilst it fixed the issue initially, it did come back and ultimately it was a waste of money.
The expert has spoken
Absolutely not an expert, just sharing direct experience. :-)
I was just joshing. Your login is perfect for this thread.


thebraketester

15,001 posts

152 months

Sunday 13th November 2022
quotequote all
CraigyMc said:
I was just joshing. Your login is perfect for this thread.
True :-). I do love brakes.