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Brake/Clutch Reservoir Diaphragms

To: british-cars@autox.team.net
Subject: Brake/Clutch Reservoir Diaphragms
From: Roland Dudley <cobra@cdc.hp.com>
Date: Wed, 2 Aug 2000 13:09:14 -0700 (PDT)
Next question for today.

Dave Bean Engineering, and others I'm sure, sell accordion shaped rubber
diaphragm that fit under brake and clutch reservoir caps.  The purpose
of these diaphragms is to give an air tight seal to reservoirs to
isolate them from atmospheric moisture and yet not cause back pressure
if the fluid level drops.  I have similar diaphragms for my Chevy van's
brake reservoirs, though they are shaped differently.  I've been
thinking about getting some of these for my snake's reservoirs and I was
wondering if any of you have them on your cars and what you think of
them.

And one more question- Dave Bean's catalog lists two sizes of caps and
diaphragms, large and small.  I think my caps are small, but there
aren't any dimensions listed.  My caps are ~1 3/4" in diameter, if I
recall.  Is that correct for the small size?

Thanks,

Roland

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