This is one I have not heard of. A brief  search of JC Whitney's web
site gave a null result. Any more info available??

cas

Karl Wolz wrote:
>
> These effects can be eliminated by installing a Combex reciprocating pump.
> I believe that they can be ordered through JC Whitney.  If I'm not mistaken,
> they advertise a 15 - 20% increase in fuel economy.
>
> Karl Wolz
>
> ----- Original Message -----
> From: "Frank Miller" <fmiller01@sprynet.com>
> To: <vanagon@GERRY.VANAGON.COM>
> Sent: Thursday, July 13, 2000 5:23 AM
> Subject: Re: Weep No More For Me
>
> > Fine, but what about the inertial effects on the water depending on the
> > velocity of the van or whether the van is going forward or in reverse?
> > Hurry up Friday!
> >
> >
> > At 10:50 PM 7/12/00 -0400, Karl F. Bloss wrote:
> > >> based on the original poster's assumption that the water pump has to
> work
> > >> relatively hard to pump coolant uphill, would it do less real work if
> > the van
> > >> were constantly driven downhill?
> > >
> > >Forget differential equations.  If it's a closed non-leaking system, it
> > doesn't
> > >matter how the van is facing, the waterpump is only overcoming the
> frictional
> > >losses in the system, not pumping up or down.  I.e. the more piping, the
> more
> > >friction, the more the pump has to work.
> > >
> > >Uphill and downhill don't matter because the starting and stopping point
> for
> > >the fluid is the same.  If the van is facing downhill, for every unit
> mass of
> > >coolant that's going downhill, another unit mass is going uphill and vice
> > versa
> > >if it's pointing uphill.
> > >
> > >-Karl
> > >
> > >Karl & Kristina Bloss, Trexlertown, PA - '87 Weekender "Bev" - 199K Miles
> > >http://www.enter.net/~bloss/vw - vanagon@makarov.com
> > >VW Shop List: http://www.enter.net/~bloss/vw/vwshops
> > >PA/NJ/DE/MD area VW bus "group" http://www.enter.net/~bloss/vw/pavanagon
> > >Red Hat LINUX 6.2 - for IQs higher than 98
> > >
> >