Hi all, was wondering if anyone can give me some advice/help.
I noticed that my wheels have started corroding around the recesses into which the wheel bolts locate. The wheels are genuine CSLs, and I bought them brand new less than 2 years ago (october 2008).
I'm pretty disappointed to be honest. I've never had this problem with any of my previous cars. I only noticed it last week as I was walking past the car and noticed that the wheel bolts were pretty rusty. I looked a bit closer and saw that the paint on the wheels around where the bolt recesses are is starting to bubble.
I'm pretty fussy when I clean the car, and I'm sure that this is a relatively recent thing. The only thing I can think of as to why it's happening now, is that I've recently replaced all 4 brake discs, and I'm thinking that the disc bells are maybe different material to what was there originally and the material mismatch is causing the wheels to sacrificially corrode to protect the new bells. Either that or, since the wheel bolts are rusty, are they causing the wheels to cathodically protect the bolts?
Was wondering if anyone has suffered something similar with wheels as new as mine? I'm assuming this isn't normal.
Can anyone explain what the corrosion mechanism is? I'm a mechanical engineer, but materials were never my strong point, and Cathodic protection stuff is a bit beyond me.
Naturally, I want to get this fixed, but don't want to spend any money until I'm confident that I understand what's going on, and can stop it happening in the future. For example, would it be worthwhile fitting duplex bolts, once I've paid to have the wheels re-furbed, in order to 'break' the circuit? As I say, any help would be gratefully appreciated. Don't want to put out any cash on getting the wheels re-done, only to have the problem happen again.
On another note - taking into account the age of the wheels, would I have any comeback from where I got the wheels from. I got them from Simpson motorsport. I was thinking of giving them a call and asking them for advice, but thought that I would seek some assistance from on here first.
As I said, any help would be very much appreciated.
Thanks.
I noticed that my wheels have started corroding around the recesses into which the wheel bolts locate. The wheels are genuine CSLs, and I bought them brand new less than 2 years ago (october 2008).
I'm pretty disappointed to be honest. I've never had this problem with any of my previous cars. I only noticed it last week as I was walking past the car and noticed that the wheel bolts were pretty rusty. I looked a bit closer and saw that the paint on the wheels around where the bolt recesses are is starting to bubble.
I'm pretty fussy when I clean the car, and I'm sure that this is a relatively recent thing. The only thing I can think of as to why it's happening now, is that I've recently replaced all 4 brake discs, and I'm thinking that the disc bells are maybe different material to what was there originally and the material mismatch is causing the wheels to sacrificially corrode to protect the new bells. Either that or, since the wheel bolts are rusty, are they causing the wheels to cathodically protect the bolts?
Was wondering if anyone has suffered something similar with wheels as new as mine? I'm assuming this isn't normal.
Can anyone explain what the corrosion mechanism is? I'm a mechanical engineer, but materials were never my strong point, and Cathodic protection stuff is a bit beyond me.
Naturally, I want to get this fixed, but don't want to spend any money until I'm confident that I understand what's going on, and can stop it happening in the future. For example, would it be worthwhile fitting duplex bolts, once I've paid to have the wheels re-furbed, in order to 'break' the circuit? As I say, any help would be gratefully appreciated. Don't want to put out any cash on getting the wheels re-done, only to have the problem happen again.
On another note - taking into account the age of the wheels, would I have any comeback from where I got the wheels from. I got them from Simpson motorsport. I was thinking of giving them a call and asking them for advice, but thought that I would seek some assistance from on here first.
As I said, any help would be very much appreciated.
Thanks.
