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Message
so these preliminary
flowrates are with the pumps running on battery voltage only and
non-pressurized, which usually has about a 25% lower flow rate than with system
voltage at 14vdc and system pressurized.
With either of the pumps running and the other off I found that flow
rates were approx 20% less. With both pumps running flow rate was about 25%
increased.
OK, you confused me
here. When you say the measured flow rates are 20% less, and 25%
increased, do you mean over the flow rate that you normally see when
the engine is not running?
20% is a pretty
good hit to take for having one pump freewheeling. You have to really
wonder how low it gets if one pump is seized. Actually, I'm hoping that
you'll wonder enough that you'll try it for us :-)
Another thought- some
pumps are better on the pressure side, than the suction side. Do these
fall in that category? In other words, would you have 60% flow if the
second pump seized, vs 20% flow if the first pump
did?
Thanks,
Rusty (go ahead Todd,
you KNOW you want to try it
<g>)
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