Quote:
Originally Posted by SUPERTOM
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Oh yeah I dont have an air compressor to push out the pistons will a gas station air pump work?
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WOOF DUDE YOU ARE SCARRING ME! DO NOT ~ DO NOT ~ DO NOT ~ DO NOT ~ USE THE GAS STATION AIR COMPRESSOR TO BLOW OUT YOUR BRAKE CALIPER PISTONS! THAT WILL RESULT IN POSSIBLY MAJOR INJURY. Just at about 10lbs of air pressure they come shooting out with the right attachment on the hose and its best to have a piece of 2x4 wood or half that width of wood underneath them IN THE CALIPER so the wood catches them when they come out. **Also, even if you could use the gas station air compressor this is not a job to be doing there as it will take entirely too long.**
Wal-mart and Target sell fairly decent air compressors for everyday Joe garages for about $50 - $100. It is a very good investment if you have the money. Wal-Mart also has a Rockford air tool set that is $50 and also very well worth the money.
I am a little confused on your setup right now, but you should be removing the caliper brackets to clean them. I am not sure if PBBlaster or Parts cleaner will get rid of rust in the bores. If there is rust in the bore's walls you are going to need to have it dry and either use a drill with a round sanding tool (like a dremel end) and/or a nylon/plastic brush small enough to fit in the bores and hopefully bristle enough to get the rust out. For me what I did was twist some same paper till it spiraled and continually turned it till I had the results I wanted. May take several iterations of emptying the debris with the air compressor air gun tool before your bores are rust free. If there is ANY debris caked on the bore walls (RUST) at all the bolts will either not slide right or not at all.
If you can only get the front caliper's slider bolts in only 1/4 the way before they pop out then you either haven't cleaned the bores good enough and/or there is too much grease in them.