Hi Guys, I have been all weekend at the airport trying to figure out the
plumbing on the Cosmo. The problem is hooking the aluminum tank as part of
the whole system and being able to send all the air to the tank.

Hi Bulent. That expansion tank looks awfully familiar. :)
I welded a dash 8 fitting into the rad tank and ran a hose up to the lower
fitting on the expansion tank. I'm still trying to figure out where to plumb
the side fitting to. I'm thinking of putting a T on the heater hose outlet.

I'm telling you this not because I know its right, but rather in the hope
that someone will tell me whether it's right or not. :)

Regards,
John