Thanks for responding, Mark.  Your post reads "see picture".  I didn't see
any attachments on my message.   Sorry to seem so ignorant about this water
pump. Which side of the water pump is the inlet side....the top portion with
the thermostat, or the lower tube?  Unfortunately, I don't know which way
the coolant flows through the pump.  Thanks for your advice.  Paul Conner

----- Original Message -----
From: "Marvin Kaye" <marv@lancaironline.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Tuesday, March 02, 2004 9:20 AM
Subject: [FlyRotary] Re: overflow connections


> Posted for Mark Steitle <msteitle@mail.utexas.edu>:
>
> Paul,
> I think you want the bottom fitting to suck... so connect it to the inlet
side
> of the water pump (see picture).   Otherwise you could draw air into the
> system if the tank gets low on coolant.
>
> The fitting that's halfway up on the side of the tank should flow coolant
into
> the tank.  I connected that to the radiator return side tank, uppermost
point
> so as to draw out any trapped air).
>
> Mark S.
>
> >Hi, fellow rotary enthusiasts....My radiator is all connected, and the
last
> >thing I need to do before engine start is the expansion tank. I purchased
a
> >nice aluminum expansion tank that has a fitting on the bottom, and one on
> >the side, about 2/3rds of the way up from the bottom. It has a billet
> >machined radiator cap fitting on the top.I also had another female pipe
> >fitting welded on for my glass sight gage, which is right about in the
> >middle of the tank. (also on the side).
>
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