Brake disc wear

[will-w]

You need Zep's big disc conversion. It's absolutely transformed my car.
Cheerio
Captain Boogaloo

Oh that’s on the list, once I’ve worked out how soon I need to replace them

 

[Sam McGoo]

Oh that’s on the list, once I’ve worked out how soon I need to replace them

Well if it helps with your decision, I'll tell you that with a lip that large they must be knackered, and will properly explode the next time you brake hard!















Although in reality, probably got about 20k miles left in them, measure them to be sure.
(but please disregard this info if you want to buy new shiny stuff from Zep)

 

[will-w]

Well if it helps with your decision, I'll tell you that with a lip that large they must be knackered, and will properly explode the next time you brake hard!















Although in reality, probably got about 20k miles left in them, measure them to be sure.
(but please disregard this info if you want to buy new shiny stuff from Zep)

That made me giggle!

I’ve just found the pre-purchase inspection report, which reports disc thickness at 30.8mm. That was 1,500 miles ago at 14k miles.

I’ve sent Zep a message; I need to start collecting a pile of for next years service - the wife won’t know how much I’ve spent if it’s spread across a larger period

 

[Goldsax]

used a provider named 'skim my disks'.
they provide the location of your nearest garage that does on axle disk skimming.
as I have a GTS, I am in no hurry to replace mine at almost £500 per front corner.
the garage I used charged £144 for the front axle

 

[safrane]

Surely skimming a disk removes even more of the 2mm harder surface making your disc even more worn and therfore a false economy?

 

[will-w]

used a provider named 'skim my disks'.
they provide the location of your nearest garage that does on axle disk skimming.
as I have a GTS, I am in no hurry to replace mine at almost £500 per front corner.
the garage I used charged £144 for the front axle

In my book skimming discs is like putting part-worn tyres on.

Fine on a £500 station car, but no place on a two tonne £100k GT

 

[Sam McGoo]

used a provider named 'skim my disks'.
they provide the location of your nearest garage that does on axle disk skimming.
as I have a GTS, I am in no hurry to replace mine at almost £500 per front corner.
the garage I used charged £144 for the front axle

On axle skimming is great if they're warped, or you have some pad deposit you can't get rid of with a good bedding in procedure. But at 30.8mm there isn't much to play with, so wouldn't bother in this case even though only just over half worn. Just wear them down and replace.

 

[ensignia]

In my book skimming discs is like putting part-worn tyres on

Unless you replace all four tyres on any used car that you buy, this is a nonsense.

 

[Zep]

As the discs are sacrificial, I don’t have an issue with skimming myself, and there is little doubt that Maserati are conservative in their final dimensions.

What I wouldn’t do is skim a disc which is running true, only when it’s warped. If the only issue is the lip, that’s not a biggie to me, measure and carry on.

 

[Gazcw]

Just skim the lip off if within spec still. That way new pads will sit nicely if required.

 

[will-w]

Unless you replace all four tyres on any used car that you buy, this is a nonsense.

I do as it happens. Every car. Not that I’ve bought many used recently.

Part worn tyres are a complete false economy; you have no idea whether they’ve been run flat, damaged or even square (under/over inflation). They’re usually older and often shipped in bulk from European countries which have more stringent rules regarding tread depth than we do.

I’d rather run new budget ditch-finders than part worn tyres, not that I’d do that either.

 

[Goldsax]

lots learnt here,
I did not have warped disks, just a lip ...
was advised to skim the disk...
obviously skimmed the wallet as well!!