Dry vacuum pumps fail without catastrophically and without notice. If
it's
been awhile, I'd might replace at least one. I'd definately add the
inline
chunck-catching vacuum filter so if one goes it won't spew chunks into the
system and
kill the other stuff. I'm, of course, assuming this can be done/makes
sense on a
twin.

-Cory


They are Parker Hannifin, I figured I'd just keep them in there so in the
event of a failure/crash that has absolutely nothing to do with the vacuum
pumps, my estate can collect a ton of money (I'm kidding!) The system as
installed does have some sort of filter just before they go into the
instrument cluster. I only noticed this because I'll be replacing the tube
that goes from it to the instruments, as it's starting to look cracked, etc.
It still works fine, I just figured for $5 or so, it's not worth it to keep
it in there as a potential failure.

--
Louis L. Perley III
N46000 - C152
N370 - PA-23-250