Paul Lamar wrote:

 >
 > > Many of the more modern engines have the pump mounted low. This also
increases
 > > the head on the intake side of the pump making cavitation less likely.
 >
 > We're only talking, what, 12 inches of water pressure?  Not much of a

head

compared
 > to the 10-16 psi working pressure.  I suspect that the pumps were
relocated for
 > other reasons, perhaps to minimize the trapping of air in the pump (when
the
 > cooling system is serviced)?
 >
 > Russell Kent

In my mind, the thing to worry about is air getting in the pump. Stops
pumping altogether, right away. With the pump low, the water will keep it
primed, even if it goes a little low.

Bill Schertz
KIS Cruiser #4045

 
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