Boxster S brake disks
Discussion
Hoping for some advise, got wheel wobble under strong braking and after a free 90(or what ever) point check from the local OPC, it is confirmed that my discs are causing this, due to going rusty through lack of use 
figure I have a few options;
Get OPC to renew all
Get local specialist to renew all
Get disks reskimmed
Get upgrade to brakes
Problem re local specialist, dont know any in Suffolk?
Is skimming ok or somthing you do to an Escort rather than Porsche?!
Would upgrades cost alot more or just a few more quid?
Any other options and information would be very welcome!
figure I have a few options;
Get OPC to renew all
Get local specialist to renew all
Get disks reskimmed
Get upgrade to brakes
Problem re local specialist, dont know any in Suffolk?
Is skimming ok or somthing you do to an Escort rather than Porsche?!
Would upgrades cost alot more or just a few more quid?
Any other options and information would be very welcome!
Edited by satans worm on Friday 30th June 13:24
The disks can be skimmed on a 986S, as I know a guy who did it, but I wouldn't recommend it as it will probably impare performance (longer travel to contact, quicker fade etc.) and totally shag the resale value. That's assuming you don't have to replace them before resale anyway, as it's a fairly short term solution.
New discs are pretty strong though, apparently £750 for a full set just for the discs (i.e. without fitting).
I suppose where you get them done depends on the age of the car. If it's new and still within warranty, i'd go OPC to maintain resale value, otherwise specialist.
New discs are pretty strong though, apparently £750 for a full set just for the discs (i.e. without fitting).
I suppose where you get them done depends on the age of the car. If it's new and still within warranty, i'd go OPC to maintain resale value, otherwise specialist.
Andrew D said:
The disks can be skimmed on a 986S, as I know a guy who did it, but I wouldn't recommend it as it will probably impare performance (longer travel to contact, quicker fade etc.) and totally shag the resale value. That's assuming you don't have to replace them before resale anyway, as it's a fairly short term solution.
New discs are pretty strong though, apparently £750 for a full set just for the discs (i.e. without fitting).
I suppose where you get them done depends on the age of the car. If it's new and still within warranty, i'd go OPC to maintain resale value, otherwise specialist.
New discs are pretty strong though, apparently £750 for a full set just for the discs (i.e. without fitting).
I suppose where you get them done depends on the age of the car. If it's new and still within warranty, i'd go OPC to maintain resale value, otherwise specialist.
Had my discs skimmed on my 993 turbo 2-3 times now. Come up like new each time and give same brake performance as pre-skim state. There will be no "longer travel to contact" since the hydraulic system will self adjust and push the pads close to the disc anyway. Quicker fade? Why, since the discs don't have a tempered surface to start with.
£80 to get a pair skimmed while in situ on the car. Get it done!
silver993tt said:
Had my discs skimmed on my 993 turbo 2-3 times now. Come up like new each time and give same brake performance as pre-skim state. There will be no "longer travel to contact" since the hydraulic system will self adjust and push the pads close to the disc anyway. Quicker fade? Why, since the discs don't have a tempered surface to start with.
£80 to get a pair skimmed while in situ on the car. Get it done!
Well as I said, I know one guy that did it and it didn't seem to work out very well during resale. But then I think it might have been done by some backstreet boys. £80 to get a pair skimmed while in situ on the car. Get it done!
As for the fade, if the discs are channeled from wear and a lot of metal needs taking off, it reduces the mass available for heat-sync. Hence sooner fade, although it will only be marginal.
Andrew D said:
silver993tt said:
Had my discs skimmed on my 993 turbo 2-3 times now. Come up like new each time and give same brake performance as pre-skim state. There will be no "longer travel to contact" since the hydraulic system will self adjust and push the pads close to the disc anyway. Quicker fade? Why, since the discs don't have a tempered surface to start with.
£80 to get a pair skimmed while in situ on the car. Get it done!
Well as I said, I know one guy that did it and it didn't seem to work out very well during resale. But then I think it might have been done by some backstreet boys. £80 to get a pair skimmed while in situ on the car. Get it done!
As for the fade, if the discs are channeled from wear and a lot of metal needs taking off, it reduces the mass available for heat-sync. Hence sooner fade, although it will only be marginal.
My independent recommended getting them skimmed. They had a machine that skims them in place after the calipers are moved to one side. The said not to bother with new discs because they were still within the recommended Porsche tolerances. They showed me the Porcshe reference info for this. Would have made them more money if I had new discs so they were an honest place.
superlightr said:
Agree,
They all do that sir... give it a good thrashing, hard on the brakes a number of times and hey no more rust.
How many miles have they done?
They all do that sir... give it a good thrashing, hard on the brakes a number of times and hey no more rust.
How many miles have they done?
Totally agree. Try about 10 stops from 60/ 70mph braking hard as you can but without inducing ABS. Don't let the car come to a complete stop, accelerate up to speed and go through the cycle again. This is a standard bedding in procedure and cures 95% of these type of problems.
pp
satans worm said:
Hoping for some advise, got wheel wobble under strong braking and after a free 90(or what ever) point check from the local OPC, it is confirmed that my discs are causing this, due to going rusty through lack of use
Simple solution there then to prevent re-occurance
I periodically get the same problem & same as the others here find it disappears as soon as it goes on the track & the harder braking cleans up the discs in no time.
They all do this - I actually managed (and I still don`t know how)to get the OPC to replace a set under warranty a couple of years ago. As mentioned, try and bed them in, if they are still bad just get them skimmed. If they are truly rogered dip into your pocket and use a specialist (unless you ar in the wwarranty zone). I cannot envisage a situation where skimmed discs should affect resale...
Try www.opussales.co.uk 01284 760 229 they are in Bury St. Edmunds Speak to Matty, Mention my name Paul he will look after you
Small point............once you have either cleaned them up by braking hard or decided to replace them, remember most of this surface corrosion comes from when the car is washed and not drying the brakes off before you put it to bed. So, when you wash it in future, take it for a short run round the block before its tucked in 
ps. Mine were exactly the same but cleaned up nicely after several hard braking runs but if theres a lip round the outside edge of the discs then they will need skimming which can be done with them on the car.
ps. Mine were exactly the same but cleaned up nicely after several hard braking runs but if theres a lip round the outside edge of the discs then they will need skimming which can be done with them on the car.
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