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The mkiv Supra Owners Club

Brakes --- two more questions


JohnA

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1. How do people here deal with stuck pins? Mine are stuck to boogery, sprayed everything with brake cleaner, tried light banging with a hammer, grabbing with mole grips, nothing.

Surely you shouldn't need a hydraulic press! I can't really use much force, the calipers might crack :scare:

 

2. Caliper bolts: are they stretch bolts, i.e. do they need to be replaced after a single use? They look and feel a lot like other stretch bolts I've seen. There is no mention of replacing them on the manual, but at 105Nm torque better double check eh? :rtfm:

 

Cheers guys

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1) I used pliers that had like pincer/snip heads......ie the heads would force there way in the gap between the caliper and pin's head. This should move the pins out a small amount and may then come out fine, if not it should be enough to get something else on it that will move them........

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The pins on my front left were extremely tight aswell, just kept hitting it with a bolster hammer. When the pin diappeared inside the caliper I used a thin steel rod to keep hitting it with the hammer.

 

Be aware that hitting it with a hammer can fatten the end and make it worse!

 

It was too tight for self locking pliers, maybe using a claw hammer to lever it out with a wooden block under the hammer head.

 

When it eventually came out I sanded it down to remove the corrosion which caused the problem and then give it a coating of copper grease before I put it back in.

 

AFAIK you don't need to repace the caliper bolts.

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Drill them out, use a centre punch to start the drill centrally unless you are used to accurate hand drilling. Use heat if necessary. Realize why i won't give a fixed price for fitting UK pads? :) I am thinking of making stainless steel ones so this won't happen so easily. is there a market?

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I am thinking of making stainless steel ones so this won't happen so easily. is there a market?

 

Good idea, I suggested this a couple of years back after having trouble with the pins on my calipers but was told it was OTT.

Since then I've kept the standard ones and greased them on a regular basis with high temp stuff.

Paul

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