Message-ID: <000901c43308$6d089350$2402a8c0@EDWARD>
From: "Ed Anderson" <eanderson@carolina.rr.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
References: <list-3207958@logan.com>
Subject: Re: [FlyRotary] Re: Coolant Pressure Gauge
Date: Wed, 5 May 2004 21:21:15 -0400
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Jim, I was surprised that when I inspected the belt there were no signs of
slipping or heat produced by the slippage such as a glazed surface or
cracks.  I was using top of the line GATES belts which may have helped.  I
do intend to swap the set of belts out. There could be damage or
deterioration that a visual inspection could not spot.

Yes, if both belts had gone, then it would haven been  either glider time
(again) or cook the engine.  Neither one desirable.
I generally plan my flights from airport to airport to enhance the chances
of having a reachable one should the need arise, but of course, can not
always been within gliding distance.

Ed

Ed Anderson
RV-6A N494BW Rotary Powered
Matthews, NC
----- Original Message ----- 
From: "Jim Sower" <canarder@frontiernet.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Wednesday, May 05, 2004 8:53 PM
Subject: [FlyRotary] Re: Coolant Pressure Gauge


> 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
>
>
>
> >>  Homepage:  http://www.flyrotary.com/
> >>  Archive:   http://lancaironline.net/lists/flyrotary/List.html