Pitted Rear Bake Discs

How do you clean pitted brake discs?

You can give it a clean with an old rag and some brake cleaning fluid. You may notice a line of rust around the disc rim, however, this is fairly normal. Apply the brake cleaning fluid to the disc and use your rag to gently wipe the surface.

What causes pitted brake discs?

Rust can build up on rear brake discs which aren’t used as often – especially on light cars or ones only used for local trips. Corrosion isn’t normally a problem with rear drum brakes. Light corrosion can come off with heavy braking, but if not, the corrosion gets worse and can lead to surface pitting.

Are corroded brake discs an MOT failure?

Although pitting in itself isn’t an automatic cause of MOT failure anymore, if discs are deemed to be ‘seriously weakened’ because of pitting, they are seen as dangerous and won’t pass this test. So, if these parts of your braking system corrode too much, you’ll need to get them replaced.

How do you fix a corroded brake disc?

Use Brake Cleaner to Remove Rust From the Rotors

Put down a tray to catch any runoff, then spray the rotor with brake cleaner. Let the rotor dry, then wipe it with a clean rag (no oil on the rag). If some rust remains, apply more brake cleaner and work the surface with steel wool or a wire brush.

Do brake discs need replacing if corroded?

If your brake discs are rusted and pitted and your braking is affected, you’ll need to have them replaced as soon as possible.

Can you turn pitted rotors?

That will cause the shimmy, denature the lubrication on the slide pins, cause the pads to wear unevenly All that will overheat the caliper further, which will then cause the caliper piston return problem to reappear. Turning the rotor won’t help, either.

How do you know when rear brake discs need replacing?

How do I know if my brake discs are worn?

  1. Steering wheel wobbling when driving.
  2. Brake pedal less responsive.
  3. Brake performance reduced.
  4. Warped brake disc.
  5. Grinding sound when braking.

How often do brake discs need replacing?

Summary. Brake pads should last anywhere between 25,000 and 60,000 miles, with brake discs lasting around 50,000 miles on average.

How long should brake discs last?

50,000 miles

Generally, brake discs should last more than 50,000 miles on average, but a number of factors affect the lifespan. If you keep them well maintained and drive sensibly, you may be able to get up to 80,000 miles out of one set!

Is rust on brake discs normal?

Is rust on the brake discs harmful? Brake discs wear out over time either by thinning, warping, or rusting. So, if you’re wondering whether rust on the brake disc is harmful or not, the answer is yes, but only if left unattended for way too long. Rust can corrode the discs and damage the surface for braking.

Why do my brake discs look rusty?

However, being constructed out of cast iron, brake rust forms easily on the surface of iron discs when they’re wet. It can form literally overnight, especially if you park your car outside where it faces the rain and sun constantly.

Can you use wd40 on brake discs?

WD-40 Specialist Automotive Brake and Parts Cleaner is safe to use on clutch and brake assemblies, brake discs, callipers, brake drums, brake pads and brake linings.

Can I use engine degreaser to clean brakes?

However with its extra cleaning power brake cleaner can damage delicate plastic and rubber parts and even harm painted surfaces best to ensure it only hits.

How do you clean brake discs without removing the wheels?

I'm just gonna leave it for two minutes and then pressure wash it even though you can leave it up to four minutes just don't let it dry on the surface.

Can you use degreaser on disc brakes?

DO NOT: Spray degreaser onto brake calipers/brake pads/rotors if you have disc brakes. If degreaser finds its way to these areas, it can cause contamination and squeaky brakes!

Can you spray WD-40 on brakes?

WD40 should not be put on your brakes since it can reduce friction where it is needed and even break down and damage brake components. While spraying WD40 may temporarily reduce a brake squeal or squeak, it could also cause the brakes not to function correctly when you need them most.

Can you use methylated spirits to clean disc brakes?

When it comes to cleaning disc rotors, the general consensus is to use a specialist product that doesn’t leave any residue, such as isopropyl alcohol. Hope told us “We recommend either methylated spirits or isopropyl alcohol as these both leave no residue on the rotors.