Wet vs Dry Vacuum Pump

On Thu, 16 Dec 2004 04:41:59 GMT, "Colin W Kingsbury"
wrote:

"Fastglasair" wrote in message
...

I am curious of opinions out there. I currently have a wet Vacuum pump on
my
...
the belly. What should I do? I do plan to use the plane for some hard IFR,
I

Keep the wet pump. If you fly real IFR you need to replace dry pumps every
500 hours. There's a lot of us out here with dry pumps who'd rather have
wet.

-cwk.

Got that right, I'd rather have a wet pump. Lets see - longer life,
fewer $ for replacements, more reliable... What's not to like? Some
oil on your belly?

Oh, but don't think that a dry pump will keep your belly clean. It
gets oily etiher way. Stick with the longer-life, more-reliable wet
pump and put in a seperator to catch more oil.

Good luck.



Chuck
N7398W



P.S. -- Lotsa planes loose a quart every 4 to 5 hours, even WITH a dry
pump!!! You should see what some of the training planes at a local
school eat up. What's the old joke about "Fill the oil and check the
gas"