New brake discs - warped? How to solve? Machining worth it?

New brake discs - warped? How to solve? Machining worth it?

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Discussion

TTommy

Original Poster:

164 posts

126 months

Sunday 13th May 2018
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Hi chaps,

I've just bought an S2K (epic cars, first ever Honda)


The previous owner had fitted new mtec discs & ferodo pads all round approx. ~500 miles ago.

He said he bedded them in for around 250/300 miles, then did 1 trackday.


Now, braking from high speed / hard I can clearly feel the brake pedal pulsating and feels like the front discs are warped. It is thought they may have been overheated from on the track.


Anyway - is the best thing for me to do just straight out replace the discs? The pads should have plenty of meat left on.

Or... I saw online you might be able to get them machined down and straight again - never done this or heard about it - so not sure if legit?


Someone also suggested the discs won't be warped and it will just be 'pad material' stuck on the brake disc. Though I would have thought I would be able to see this - or maybe not haha?


Thoughts from people with actual experience would be most helpful!

Cheers,
T

TTommy

Original Poster:

164 posts

126 months

Monday 14th May 2018
quotequote all
Thanks buddy.

I thought that may be the case, just lack of actual experience fails me on this.

Cheers man!


Forgot to mention, I think the wheels might be on small spacers too. I'll check it out. (Only owned it a day!)

TTommy

Original Poster:

164 posts

126 months

Thursday 17th May 2018
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Oh right.

Thanks chaps. They don't looked massively grooved like normal cheapo's. I'm trying to find them on ebay now but can't see anything similar.

These ones don't have grooves as such, they have what looks like a fishing hook - imprinted around them as (drilled) holes.


Perhaps a starting point would be for me to clean them with some rags and break cleaner?

Is there any implications in running different discs on the front to the back?

As you have said, I'll just get some better ones or OEM. Don't need to be drilled/grooved for normal driving or fast road at all.

Thanks all.

TTommy

Original Poster:

164 posts

126 months

Thursday 17th May 2018
quotequote all
V8mate said:
The OP says he has been braking hard from high speed... could he simply be feeling the ABS actuating?
Actually, funny you should say that.

Today I noticed I can feel it at low speed <10 mph. Just on the pedal. It must be the discs/pads haha!