Rusty Rotors

[shane0nz]

2011 fg xr6 non turbo.. behind the rear wheel when removed is a thin plate which had ugly rust on it, so I thought whip that off for an inspection well the rotor, bearing nut, shaft is covered in rust. both sides?

Is this normal? if I need to show a pic then I guess it isn't

[aiboart]

Rotors will lightly rust in about an hour after being washed down. However, a run will either:

1. remove the rust and leave the metal bright and shiney
2. remove the rust and leave behind a light coating of pad friction material

Whether you get result 1 or 2 depends on:

• the chemistry of your pads
• the nature of your run

The only rust that should remain on the disc is:

• on the disc hub
• on the outside edge of the disc
• inside the disc on the vanes or pillars

Any other rust present would appear to be wrong.

Edited 15/11/13 11:12 PM by aiboart

[shane0nz]

thanks for the reply aiboart, I realize I didn't describe very clearly. you are right the rotor disc is shiny. It is the hub I am looking at. these rusty hubs look like they're 20 years old not 2. It hasn't got a towbar so it hasn't sat in the drink.

[Kimberley Scott]

Unprotected metal and elements equal rust. Pic to conclusively say but I'm sure what your seeing is normal.

PS it's a Ford the technology is 20 years old.

[aiboart]

Do you mean like this?

http://www.dba.com.au/tech-article-t026-brake-shudder-%E2%80%93-hat-type-disc-rotors/

If so, read the link.