(HELP!) Overheating Disk

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(HELP!) Overheating Disk

Postby michion » Sat Oct 22, 2005 3:31 pm

I have an overheating rear brake rotor on my st215. Seizing I think?
I've replaced the pads with lucus pads and completely striped them down
and greased the sliding part (dont know what they call these), and its still overheating to the point that the alloys are getting hot.
I'm no expert so could it have anything to do with brake balancing?

Hopefully someone out there with a superior knowledge of braking systems and/or has had this happen to them before might be able to enlighten me on a possible cause of this problem.

It's really starting to piss me off!
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Postby GOLDAE86 » Sat Oct 22, 2005 6:34 pm

Its either over adjusted or your caliper is siezed.
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Postby michion » Sat Oct 22, 2005 7:11 pm

May be a dumb question but is there some where on the car you can adjust it? Not quite sure what you mean by over adjusted.
Shouldn't be seizing now that I've greased them up real good.
Thanks
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Postby BL8KK9T » Sat Oct 22, 2005 11:34 pm

im not sure what type of brake they have, but some cars have a handbrake build in the calipers and they can be adjusted by adjust the hand brake cable. and the other type that has a drum-hand brake in side the rotor which can be adjusted though a hole between the stud...

hope that helps else the piston itself can be seize or the seal not return the piston propaply.... can you feel the brake staying on when you driving?
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Postby michion » Sat Oct 22, 2005 11:57 pm

Thanks BL8KK9T
It's the type with the H/brake inside the rotor. I remember wondering what that hole bettween the studs was for. I'll try adjusting that.
If it's a seizing piston, I'd imagine you would have to completely dissasemble the calliper to clean it up. Would I be right in saying that?
And yeah, you can tell when the calliper is playing up.
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Postby sleeektoy » Sun Oct 23, 2005 10:56 am

Probably a silly question but have you checked the wheel bearing on that hub? If a bearing is overtight or worn out it will heat up too.
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Postby michion » Sun Oct 23, 2005 11:16 am

I've read that overheating rotors can damage wheel rearings so I will cheak these too.
It's not overheating all the time so I don't think it's the bearing. For a bearing to put this much heat into a rotor I'd imagine it would make quite a bit of noise, which it isnt at the moment.
I didn't know pistons could seize as the sliders can. I suspect this is what it might be.
All I need to do now is find out how to remove the piston the proper way.
I'll try googling it.
Thanks for all your replys. :D
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Postby BL8KK9T » Sun Oct 23, 2005 10:13 pm

i think you should check if the brake is staying on first coz if it isnt it can be a waest of time recon you brakes. i have had a brake got so hot that the hub cap burns lol...
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Postby vvega » Sun Oct 23, 2005 10:52 pm

compressed air and keep ya fingers clear or it will remove them for you :D
just send it into the presure port


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