Re: Girling clutch master piston removal - Saab Vintage Models Bulletin Board - Saabnet.com
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I've rebuilt a number of VSaab clutch master cylinders. They are quite simple.
There are a couple of methods to get the piston out of the cylinder once the circlip is removed.
1. Rap the master, face down, sharply on a wooden block. Not metal, as it will dent the aluminum. Do this several times. The piston might pop out.
2. If it doesn't, then you must use method 2- air pressure. Put the cylinder in a vise. Wrap the open end of the cylinder loosely with a rag. This will catch the piston when it flies out. Apply air pressure from an air blow gun into the inlet of the cylinder- the fitting where the hose screws in. As I do this, I hold my thumb over the fill cap blocking the vent hole so that all the pressure is against the piston. You should hear a resounding "pop" when the piston flies out.
Hope that works for you!
eric in vermont
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