"slight" grinding

Liampope · 14 Sep 2012 at 22:10

Dogbreath said:
From what you can see in the pic it looks like the wear is pretty well perfectly aligned with the bottom of the metal pad backing.

Exactly. Is everyone blind???

Amoeba · 14 Sep 2012 at 22:25

Dogbreath said:
From what you can see in the pic it looks like the wear is pretty well perfectly aligned with the bottom of the metal pad backing.

Liampope said:
Exactly. Is everyone blind???

Not sure if serious... but if so please explain why the 'wear' on the rotor hub is still shiny and new and not old and rusty, as it would be if that wear had been caused by pad backing rubbing over a long period..

Liampope · 14 Sep 2012 at 22:34

Amoeba said:
Not sure if serious... but if so please explain why the 'wear' on the rotor hub is still shiny and new and not old and rusty, as it would be if that wear had been caused by pad backing rubbing over a long period..

Amateur image analysts/CSIs out in force

. Why would areas still in contact have gone rusty??? Are your brake discs rusty? Look towards the middle of the pad just going out of sight behind the hat. The pad/backing plate is in contact all the way down.

I'm not sure why it's so hard to believe. It's common enough, particularly in the States where cars can go years without any kind of inspection.

Amoeba · 14 Sep 2012 at 22:42

Liampope said:
Amateur image analysts/CSIs out in force . Why would areas still in contact have gone rusty??? Are your brake discs rusty? Look towards the middle of the pad just going out of sight behind the hat. The pad/backing plate is in contact all the way down.

I'm not sure why it's so hard to believe. It's common enough, particularly in the States where cars can go years without any kind of inspection.

If they are still in contact then I withdraw my comment, but it doesn't look to me like it is. And no, my brake disk is not rusty where the pad is in contact, there is a couple of mm of rust on the inside where the pad doesn't quite reach. But thanks for asking

If it is real then God help the other motorists in her town

Dogbreath · 15 Sep 2012 at 08:40

Amoeba said:
If they are still in contact then I withdraw my comment, but it doesn't look to me like it is. And no, my brake disk is not rusty where the pad is in contact, there is a couple of mm of rust on the inside where the pad doesn't quite reach. But thanks for asking

Look a little more closely at a brake pad next time you replace them, and you will see the metal backing extends past the friction material. That 2mm of rust on your disc will no longer be present if you allowed all the friction material to wear away and the metal backing to contact the disc.

I don't really understand you comment though. If two surfaces had been rubbing over a long period, why do you think they would be rusty rather than shiny?

Amoeba · 15 Sep 2012 at 09:41

My comment was referring to areas where there there is no contact. Like I said, if there is contact in that area then I stand corrected

.

Still wholly surprised however that something like this is possible..

Liampope · 15 Sep 2012 at 10:22

I'd strongly suspect most such disasters are safely (for us) on the other side of the pond. Practically impossible to occur over here with the annual MOT test.

Fuzz · 15 Sep 2012 at 10:30

Liampope said:
I'd strongly suspect most such disasters are safely (for us) on the other side of the pond. Practically impossible to occur over here with the annual MOT test.

O'Rly!

Customer of ours came in with "I think my pads need changing"

Liampope · 15 Sep 2012 at 10:41

Yikes! But what's happening there? Looks more like a destroyed hub bearing.

Rybo89 · 15 Sep 2012 at 10:53

I would go with wheel bearing, drop links, track rod end, upper and lower arm bushes. The lot really.

Shame you cannot report stuff like that.

Fuzz · 15 Sep 2012 at 10:59

It was the wheel bearing, it had completely collapsed, you can see the outside couple of inches of the disc is all shiny.... That's where it was rubbing the calliper. It was the only thing stopping it all falling apart.