andy198712 Posted June 21, 2009 Report Share Posted June 21, 2009 is it magnetic? Quote Link to comment Share on other sites More sharing options...
copemech Posted June 22, 2009 Report Share Posted June 22, 2009 You may need to completely remove it and clean the backside of the bore best possible with solvent, then after removing the snapring, use air pressure backwards through the pressure hose connection to blow the piston out. Careful to do this against the workbench or something as crap is going to fly everywhere when it moves! Cover with a shop rag or something to catch the fluid and pieces! Quote Link to comment Share on other sites More sharing options...
dickiem Posted June 24, 2009 Author Report Share Posted June 24, 2009 (edited) You may need to completely remove it and clean the backside of the bore best possible with solvent, then after removing the snapring, use air pressure backwards through the pressure hose connection to blow the piston out. Careful to do this against the workbench or something as crap is going to fly everywhere when it moves! Cover with a shop rag or something to catch the fluid and pieces! Success Took 80psi air pressure to blow the piston to within 1/8" (3mm) of the circlip then wouldn't budge any further. Finally removed it using a stud extractor! Piston, seals and spring all in perfect condition. Apparently you can't buy service kits for this particular M/C now so had a guy in the toolroom at work turn me a new nylon insert/bush. Pressed that in, replaced the 'O' ring and re-assembled with the original piston, seal and spring and worked smooth as silk. Put it back on the bike and force fed fluid from each end to the banjo coupling with a syringe and hey presto, we have a good back brake again with proper lever travel Edited June 24, 2009 by dickiem Quote Link to comment Share on other sites More sharing options...
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