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To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Message-Id: <AA-45F1A8E5FBBA33B7CC5C65004E4F2789-ZZ@enroll02.prodigy.net>
Date: Thu, 07 Oct 2004 09:34:23 -0500
From: DELTAFLYER@prodigy.net
Subject: Re: [FlyRotary] Re: #$!%@$ temperatures still high

A coffee cup and an electric immersion heater will get 
you easily portable boiling water.
Jim

--- Original Message ---
From: "Steve Brooks" <prvt_pilot@yahoo.com>
To: "Rotary motors in aircraft" 
<flyrotary@lancaironline.net>
Subject: [FlyRotary] Re: #$!%@$ temperatures still high

>Re: [FlyRotary] Re: #$!%@$ temperatures still highJoe,
>I was trying to think of a good way to do this test 
while in the plane, and
>outside of a camp stove or something to boil the 
water, it would be pretty
>hard to do.  I don't think that pulling them to test 
would be too difficult,
>plus the sensor resistance goes down as it gets 
hotter, so any additional
>resistance in the ground, or the wiring would make 
the gauge read cooler,
>not hotter.
>
>I think that I'll test it first out of the plane and 
see what I get, I can
>also measure the resistance at boiling, and then run 
the plane to the same
>reading and check the resistance of the sensor there, 
just to validate the
>readings.
>
>Steve
>  -----Original Message-----
>  From: Rotary motors in aircraft 
[mailto:flyrotary@lancaironline.net]On
>Behalf Of Joe Hull
>  Sent: Wednesday, October 06, 2004 7:48 PM
>  To: Rotary motors in aircraft
>  Subject: [FlyRotary] Re: #$!%@$ temperatures still 
high
>
>
>  On 10/6/04 6:46 PM, "Steve Brooks" 
<prvt_pilot@yahoo.com> wrote:
>
>  Mark,
>  You raise a good point.  I'm pretty confident in 
the oil side of the
>equation.  The digital readout is aircraft certified, 
and the specs are +-
>1/2 degree.  The sender is also aircraft type.  The 
water temp is
>automotive.  Its anyone's guess how accurate it is.  
The sensors aren't real
>expensive, so I may just order another one, and see 
what I get.
>  The engine doesn't seem to be really hot when I 
land, which also makes me
>wonder about the accuracy.
>
>  With that said, I also think that my air flow 
through the oil cooler is a
>little on the low side.  I don't want to rob any more 
form the coolant side,
>so another scoop seems to be the answer.
>
>  Steve
>
>
>  Steve, can't you put the sender in boiling water 
and see what do you read?
>Many gauges have adjustments on the back and you can 
compensate if the
>reading is off.
>  bulent
>
>
>
>  Steve -
>
>  Make sure you do this (hot water test) while the 
sender and gauge are
>attached in the plane. If there is a "ground loop" 
problem (i.e. significant
>difference in resistance between sender to ground and 
gauge to ground) you
>might be getting an error that way too. If you test 
them out of the plane
>they may check out OK but in the plane they may have 
this additional error.
>
>
>
>  Just a thot!
>
>  Joe Hull