Mailing List flyrotary@lancaironline.net Message #17542
From: Russell Duffy <13brv3@bellsouth.net>
Subject: RE: [FlyRotary] Re: EWP ampsRe: double sheave alt pulley?
Date: Sat, 19 Feb 2005 18:19:21 -0600
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>
Message

Do you normally switch it off once you're airborne or do you leave it on all the time?

Bernie

 
I keep the EWP on all the time.  The first item on my engine start checklist is to turn on the EWP, and listen for it to make sure it's running, and sounds normal.  The only time I'd ever want to turn it off is if I had an alternator failure.  Unfortunately, since the most likely cause of an "alternator failure" is the belt, I don't dare turn off the EWP.  I'm installing a proper temp sensor on the rear housing location, and may use it to determine if there's flow, by turning off the EWP momentarily.  With the Evans coolant, that should be reasonably safe.  I could also just use that sensor to trigger the pump as well.  Lot's of options, and too many other things to worry about at the moment. 
 
Cheers,
Rusty (more %#&*@ fiberglass in my immediate future)
 
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