seized front caliper

sawdustcaeser

New Member
is there any handy hints for sorting out a seized caliper and replcing a rubber boot before i do it all wrong? i just replaced the brake fluid with dot 4 synthetic which i now find is unadvisable. why is this?
 
Work pistons in and out before removing caliper and then once removed from the car you'll need an airline to remove the pistons completely. Pad carefully with a rag (important as they come out with some force and can damage the seal retaining lip) and cover before applying airline to inlet port. Only one piston will come out at a time, remove seal and replace jamming with a bit of wood between caliper halves and re-apply airline to remove next piston. When last piston edjected the others will pull out with fingers as seals have been removed.

Don't be surprised if you find the pistons are corroded, new ones are available from P6 suppliers and brake specialist shop around for best price. I got mine from Ray Weekly spares.

I always use Dot4 in my car, who told you it was unadvisable.
 
If you do not have an airline, use your footpump (assuming you've got one) with the plastic adapter that these often come with.

Do not attempt to split the caliper into two halves, the bolts must not be undone (unless in a factory) as the caliper may leak if not exactly right.

With regard to the brake fluid, I believe the fluid is too coarse to use and I think it is the servo manufacturer who does not recommend its use.

If you are doing one side you should also do the other, it will probably be in a similar condition and you do not want uneven braking!

Good luck

Gary
 
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