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Greez,
I agree with Rhys about the part using the brake pedal to get the pistons almost out of the ports. Be really carefull tho - if the pistons should happen to not be pitted, you don't want to dent the rims blowing them against the rotor. I just did the re-build thing on my 220 and did NOT use Rhys' techique and wish I had. Once the pistons are out, I would NOT use water for anything. Use some brake fluid, I used DOT5, as a sanding lubricant. It worked fine for me. I then flushed everything with denatured alcohol (I couldn't find any 190 proof grain alcohol). I bought a 20cc syringe and used it to force the alcohol through the calipers as well as all of the lines. Then blew everything out with dry, compressed air.
Then get ready for a little frustration. If you have never done a caliper rebuild the dust covers will try to defeat you!!! Keep at it, but don't use too much assembly fluid or you will not be able to hold onto the covers as you attempt to get them fitted into the little groove in the caliper. It is possible to do this!!! Once you have the covers in place, lube your piston and carefully, slowly slip it through the dust cover and into place in the caliper. By about the fourth time I did this, I was getting pretty good at it, but then I only had one piston to go!!! Theank Heaven!!!! All in all the whole job took about three hours - yes I have two left hands and my feet were not up to holding the dust covers in place while fitting the pistons.
Good luck, and let us know how you come out!
Kent
p.s. I am using DOT5 in both the brake and clutch systems. Yeah, yeah, I know all about Corvettes, etc, but I also live in South Dakota where 3/4 of the year condensation is a real problem in any system. DOT3 is hydroPHILIC, DOT5 is hydroPHOBIC... or so I have heard.
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