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Can drilled discs be skimmed?

 
Old 03-10-2010, 04:48 AM
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Megatron-UK
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Default Can drilled discs be skimmed?

I'm in need of getting my front discs skimmed - the car has not moved for six months or so and the inside face is also a little uneven, so I'd like to get them surfaced before refitting with new pads. I just cannot afford the ú400+VAT for a pair of new 3.3 Turbo/RS Porsche discs.

My discs are not worn very much, so I thought it would be fairly straight forward to get them done. However, the problem is that the usual local companies that I get engineering work done at won't skim drilled discs. Is this a problem I'm likely to find everywhere else?
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Old 03-10-2010, 07:25 AM
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We have skimmed them on a regular disk machine with no issue. On the edge of the rotor is imprinted the minimum thickness.
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Old 03-10-2010, 08:39 AM
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Just spoke to Autofarm about getting mine done, so yes you can. They will do it on the car though.
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Old 03-10-2010, 09:52 AM
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Originally Posted by Geoffrey View Post
We have skimmed them on a regular disk machine with no issue. On the edge of the rotor is imprinted the minimum thickness.
Thanks Geoffrey, I'll check that tonight.
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Old 03-10-2010, 10:22 AM
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Yea i have had it done, but finding a place to do it is difficult, most you call will say "no we cant do crossdrilled rotors".......for some reason they are scared to mess with them.
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Old 03-10-2010, 11:14 AM
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That does appear to be what I'm finding, Jerry.
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Old 03-10-2010, 11:45 AM
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Originally Posted by Megatron-UK View Post
That does appear to be what I'm finding, Jerry.
Yea im sure youll find someone, i called probably 20 places before i found one who would.
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Old 03-10-2010, 11:47 AM
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Ask around for a shop that does blanchard grinding .
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Old 03-10-2010, 12:11 PM
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Agree with Blanchard grinding. Turning the disc on a lathe as is customary is not a good idea on rotors with holes (cast holes in the case of Porsche). On the other hand you can grind/sand them flat without a problem. My dealer did it for me when my rotors were too rusty - stored the car for the winter and the rotors were not fully dry.
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Old 03-10-2010, 03:34 PM
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I have turned on a lathe, and still would if I had access to a lathe, whats the big issue with doing this?


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Old 03-10-2010, 05:25 PM
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try a company called HAGON north London they have done mine a few years ago they mainely dealing with motorcycles but they may be able to do it i pay 25 ú per discs about 5 years ago ...
good luck

Konstantin
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