Rear brake disc wear

[dablk]

Hi all,
Have noticed that both my 182 and Trophy appear to have an area of the rear disc they don't appear to touch. The outer side face are fine but the inner face lower 1/3( nearest the centre) never seems to clear of rust. I'd this common? Is there a part of the caliper I can service to change this?

Thank you in advance.

Chris

 

[Matt W]

Normal!

 

[Mr Trailer Man]

Yeah, they pads don't cover the full face of the disc.

 

[ripp]

So, the solution? 10 yrs mega bump lol

 

[Mr Trailer Man]

So, the solution? 10 yrs mega bump lol

Having had 10 years to think about it, i think his caliper/sliders might have started to seize 😅

 

[ripp]

Having had 10 years to think about it, i think his caliper/sliders might have started to seize 😅

Mine were refurbed 2 years ago and at the begining it was fine, now the outer disc edge started to rust again, like there's no contact with the pad there. It's so annoying. I have a theory on thist though: the car sits outside so moisture creeps on that area, slightly eats the metallic compound in the pad and the pad becomes brittle on the outside, thus not contacting the disc properly, then the disc begins to rust, the pad also and if the car doesn't do many miles to burn the pads you get what you get. Mine only did like 3k miles in the last year so.. there you go

 

[Mr Trailer Man]

Mine were refurbed 2 years ago and at the begining it was fine, now the outer disc edge started to rust again, like there's no contact with the pad there. It's so annoying. I have a theory on thist though: the car sits outside so moisture creeps on that area, slightly eats the metallic compound in the pad and the pad becomes brittle on the outside, thus not contacting the disc properly, then the disc begins to rust, the pad also and if the car doesn't do many miles to burn the pads you get what you get. Mine only did like 3k miles in the last year so.. there you go

Have you got a picture of them?

 

[Matt Cup]

My rear disk edges are corroding and it spends 99% of its time in the garage 🤷🏻‍♂️ Here they are in comparison to the fronts.

 

[Mr Trailer Man]

My rear disk edges are corroding and it spends 99% of its time in the garage 🤷🏻‍♂️ Here they are in comparison to the fronts.

View attachment 1767271

View attachment 1767272

Yeah that's normal.

 

[Matt Cup]

Yeah that's normal.

This is the issue that people are experiencing above yeah? Or have I got the wrong end of the stick?

 

[Mr Trailer Man]

This is the issue that people are experiencing above yeah? Or have I got the wrong end of the stick?

The OP years ago was on about the inside and around a 1/3rd of the disc being rust which isn't right.

Should be no more than yours there.

 

[Matt Cup]

The OP years ago was on about the inside and around a 1/3rd of the disc being rust which isn't right.

Should be no more than yours there.

Yeah that doesn’t sound right at all, but @ripp description looks like mine.

 

[Mr Trailer Man]

Yeah that doesn’t sound right at all, but @ripp description looks like mine.

Yeah that's why i've asked if he's got a picture to make sure.