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Rotor Rust Make a difference on fuctionality?

Tiny
ALFORD150
  • MEMBER
  • FORD F-150
2001 Ford F150 V8 5.4L 4x4
My question is about Rust on the outer edges of the Rotor and inside the fins. Would this alone be a cause to replace the Rotors. It's not a pretty site to look at but, does this effect the performance of the braking system at all? The rust is flaking off in 1/4" pcs. about 1mm-2mm thick, down to the next layer of metal, also the fins have obvious build up of flacking inside of them. The braking surface however is alright. I have about 65M on those front rotors and wonder if I can go till the next brake change before I should replace rotors and bearings?
I've included some pictures to view.
Thanks,


http://www.2carpros.com/forum/automotive_pictures/53871_Rusty_Rotor_1.jpg



http://www.2carpros.com/forum/automotive_pictures/53871_Rusty_Rotor2_1.jpg



http://www.2carpros.com/forum/automotive_pictures/53871_Rusty_Rotor3_1.jpg

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Sunday, January 14th, 2007 AT 3:04 PM

2 Replies

Tiny
COSMO
  • MECHANIC
  • 347 POSTS
Well those don't look tooo bad. The rust on the inner fins for the most part will not cause a noticable drop in performance on a passenger vehicle.

However I was wondering if you recently replaced your brake pads? If so did you have the rotor's resurfaced? NOT resurfacing rotors before replacing pads can effect the braking quality and life of your pads.

Cosmo. Mazda TEch
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Sunday, January 14th, 2007 AT 3:21 PM
Tiny
SERVICE WRITER
  • MECHANIC
  • 9,123 POSTS
Bearings are a sealed unit, don't worry about them unless they satrt humming or throw an abs code that narrows down to them. If you have rear drum brakes, should make sure they are adjsuted out properly to take some braking off the fronts and extend their life.


http://www.2carpros.com/forum/automotive_pictures/30961_53871_Rusty_Rotor2_1_1.jpg

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Sunday, January 14th, 2007 AT 3:38 PM

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