Date: Tue, 12 Sep 2000 12:58:01 +0200 From: Robert Brown <rjbnopsamnetnospam.se> Subject: Re: This is my master cylinder, right?
Josh Vickery wrote: > I don't have an extra cap, but i came up with another theory > for supplying pressure, inflate a wide mouth balloon and > attach it to the resevoir, bleed, blow the balloon back up, > repeat, etc. Anyone foresee any problems with this? > josh Wow - unless your lungs have special features that you're not telling us about, my guess is that it won't work. If the balloon is soft enough that you can blow it up unassisted, it probably won't have the the pressure required to drive the fluid through all that piping. I myself have a gadget that I bought which screws directly onto the fluid resevoir, with a hose that one attaches to the valve of a (spare) tyre. I use a bit of grease on both joins to ensure an airtight seal. Works like a dream. Shame I'm too lazy to change my brake/clutch fluid every couple of years as I should . . . If I had to *make* one myself, I'd consider getting hold of a brake fluid resevoir cap from a wrecker's and sticking a Schraeder valve in the middle of it. Failing that, I'd cannibalise an old tyre tube, cutting out the valve, leaving about 4 cm rubber all around the valve, then use a radiator hose clamp to secure it around the mouth of the fluid resevoir. Maybe a bit of grease to reduce leakage. Get a length of rubber tubing, insert female Schraeder connectors on both ends, and use the tube to connect the fluid resevoir to a spare tyre, using the tyre's pressure to drive the fluid. You might also have to remove the valve innards from the thing you just clamped to the resevoir, to allow the air to flow . . . Regards, Robert Gothenburg (1983 900 GL, 1999 9-3 200) > > > Kai-ming Mei wrote: > > > > I was stuck and used a 2 liter bottle with some vinyl tubing attached to > > the end. I had a extra mas. cyl. cap (with hole drilled) and squeezed > > the bottle to pressurize. Chewing gum will help seal, but you really > > don't need much pressure anyways. > > > > Of course you want to loosen the cap BEFORE you let the bottle expand to > > it's natural shape. Then you add more fluid and repeat till you get good > > clear stuff from the drain. > >
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