Message-ID: <40998C91.69F646B6@frontiernet.net>
Date: Wed, 05 May 2004 19:53:38 -0500
From: Jim Sower <canarder@frontiernet.net>
MIME-Version: 1.0
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: Coolant Pressure Gauge
References: <list-3207524@logan.com>
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What did the belt look like after all that sliding across the alternator
pulley?  Sounds like someone's lucky he didn't heat the belt until it broke and
really have a problem.

Ed Anderson wrote:

> Actually, Mark,  I did not notice any variance in the cooling system from
> the normal.  I just checked my flight log for that trip and at cruise my oil
> and coolant ranged from 160-170F which is normal.  I too  would have thought
> that as loose as the belts were (I could easily turn the water pump against
> the belt friction by hand) that the water pump would have slowed down
> sufficiently to have elevated the coolant temp.  But, it apparently did not.
>
> Perhaps another way of looking at it is in regards to the power needed to
> drive sufficient coolant, apparently not very much which corresponds well
> with the 1/3 - 1/2 HP of the EWPs.
>
> Ed
> .
> Ed Anderson
> RV-6A N494BW Rotary Powered
> Matthews, NC
> ----- Original Message -----
> From: "Mark Steitle" <msteitle@mail.utexas.edu>
> To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
> Sent: Wednesday, May 05, 2004 8:57 AM
> Subject: [FlyRotary] Re: Coolant Pressure Gauge
>
> > Ed,
> > You reported a loose alternator/water pump belt(s) while on your way back
> > from SNF causing the alternator field breaker to trip.  Did you notice any
> > changes in water pressure that could be associated with the loose
> > alternator belts?
> >
> > Mark S.
> >
> >
> > At 08:09 AM 5/5/2004 -0400, you wrote:
> > >Steve,
> > >
> > >     I use a 0-30 psi fuel pressure sensor and gauge for my coolant
> pressure
> > >sensor and its still working fine after close to 300 hours.  At one time
> > >(and they may still do) UMA offered a coolant (or water) pressure gauge
> so
> > >marked - they actually silk screened a new placard and placed it in the
> fuel
> > >gauge I purchased from them.  So my fuel gauge actually says "Water
> > >Pressure"
> > >
> > >    The coolant gauge gives you pressure information that you soon begin
> to
> > >correlate with your coolant temperature as well as OAT.  You soon begin
> to
> > >notice when anything departs from the norm.  Its simple another bit of
> > >information about your system which does nothing for you most of the time
> > >but provide that comfort level that things are nominal - but, can alert
> you
> > >to departures from the nominal which bear investigating.
> > >
> > >
> > >Ed
> > >
> > >Ed Anderson
> > >RV-6A N494BW Rotary Powered
> > >Matthews, NC
> > >----- Original Message -----
> > >From: "Steve Brooks" <steve@tsisp.com>
> > >To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
> > >Sent: Wednesday, May 05, 2004 7:18 AM
> > >Subject: [FlyRotary] Re: Mystery of the leaking coolant
> > >
> > >
> > > > Yes, it does sound like a good idea.  I've looked for a sender and
> gauge,
> > > > but haven't found any.  Does anyone have a good source for these ?
> > > >
> > > > Steve Brooks
> > > >
> > > > -----Original Message-----
> > > > From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]On
> > > > Behalf Of Bill Dube
> > > > Sent: Tuesday, May 04, 2004 9:04 PM
> > > > To: Rotary motors in aircraft
> > > > Subject: [FlyRotary] Re: Mystery of the leaking coolant
> > > >
> > > >
> > > >
> > > > >
> > > > >With the overflow plugged it was probably building up some pretty
> good
> > > > >pressure, which I'm sure led to the failure of the pump seal.  It is
> such
> > > > an
> > > > >odd thing to have happened, but I'm glad that my days of chasing the
> > >drips
> > > > >of coolant are over.  I think that the hoses must be there to stay,
> since
> > > > >they didn't blow off.
> > > >
> > > >          In "The Book" Tracy strongly suggests installing a coolant
> system
> > > > pressure gauge. It sounds like it might be a good suggestion, in light
> of
> > > > the trouble you had.
> > > >
> > > >
> > > >
> > > > >>  Homepage:  http://www.flyrotary.com/
> > > > >>  Archive:   http://lancaironline.net/lists/flyrotary/List.html
> > > >
> > > >
> > > > >>  Homepage:  http://www.flyrotary.com/
> > > > >>  Archive:   http://lancaironline.net/lists/flyrotary/List.html
> > > >
> > >
> > >
> > >
> > > >>  Homepage:  http://www.flyrotary.com/
> > > >>  Archive:   http://lancaironline.net/lists/flyrotary/List.html
> >
> >
> > >>  Homepage:  http://www.flyrotary.com/
> > >>  Archive:   http://lancaironline.net/lists/flyrotary/List.html
>
> >>  Homepage:  http://www.flyrotary.com/
> >>  Archive:   http://lancaironline.net/lists/flyrotary/List.html

--
Jim Sower ... Destiny's Plaything
Crossville, TN; Chapter 5
Long-EZ N83RT, Velocity N4095T