I believe there is a real benefit there in reducing cavitation around the
pump impeller. I have read that by making the coolant slightly thicker it
prevents a lot of cavitation.
James Nazarian
71 MGB Tourer
71 MGBGT V8
85 Dodge Ram
----- Original Message -----
From: "Barney Gaylord" <barneymg@MGAguru.com>
To: "Paul M." <rowman22001@yahoo.com>; <mgs@autox.team.net>
Sent: Friday, April 25, 2003 8:08 PM
Subject: Re: Radiator Fans (was Re: Miata seats)
> At 04:25 PM 4/25/03 -0700, Paul Misencik wrote:
> >....
> >I also heard somewhere that coolant helps lubricate the water pump and
> >keep it working better, longer.
> >
> >Wive's tale? Or just a tangent of the rust issue?
>
> Should be wive's tale. The water pump seal keeping the coolant in the
> engine is a stationary flat faced carbon ring running against a polished
> steel rotating surface. If any of the coolant every gets past this seal,
> we would hope it only drains out via the weep hole and would affect
nothing
> else. The shaft bearings and oil seals are all ahead of this point in the
> pump body and hopefully will never have anything to do with the
> constitutuin of the coolant.
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