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In a message dated 12/16/2002 7:53:36 PM Central Standard Time, cowcam@pipcom.com writes:
ubj: [FlyRotary] water pressure
Date: 12/16/2002 7:53:36 PM Central Standard Time
From: cowcam@pipcom.com (Peter Cowan)
Sender: flyrotary@lancaironline.net (Rotary motors in aircraft)
Reply-to: <A HREF="mailto:flyrotary@lancaironline.net">
flyrotary@lancaironline.net</A> (Rotary motors in aircraft)
To: flyrotary@lancaironline.net (Rotary motors in aircraft)
Today I'm seeing some different characteristics in the water pressure readings. Used to be that after cooling down I could see 4 or 5 lbs pressure for many days and I don't think increasing pressure after start up was tied to rpm. Now pressure drops instantly on shutdown and is closely tied to rpm to max of 15lbs as the engine is reved up. This looks bad to me although temps in flight are fine. What do you think?
Peter
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Peter,
Where is your pressure guage in relation to pump inlet/outlet? The pressure that the pump puts out goes up at about the square of the rpm.
How is your overflow bottle rigged? Do you have a thermostat?
Bill Schertz
KIS Cruiser #4045
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