Reply-To: <steve@tsisp.com>
From: "Steve Brooks" <steve@tsisp.com>
To: "'Rotary motors in aircraft'" <flyrotary@lancaironline.net>
Subject: RE: [FlyRotary] Re: water temp sender
Date: Sun, 23 May 2004 08:27:16 -0400
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Mark,
That's interesting.  What are the acceptable temperatures for measuring at
those locations ?  Also what temperatures are you seeing on yours ?  I'm not
sure what the reasoning is for measuring on at the coolest, and one at the
hottest points.

Steve

-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]On
Behalf Of msteitle@mail.utexas.edu
Sent: Sunday, May 23, 2004 8:16 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: water temp sender


Steve,
I had the same question a while ago... I was told to measure the oil after
the
cooler (as it returns back to the engine), and measure the water on its way
out
of the engine going to the radiator.  So, my water temp sensor is on the
thermostat housing and the oil sensor is on the oil filter adapter.

Mark S.


  Quoting Steve Brooks <steve@tsisp.com>:

> I now have another question.  Since I found out that I'm measuring water
> temperature twice, and not measuring oil temperature at all, now I have
> another issue.
> I getting about a 20 degree difference between the two coolant temps.
>
> My coolant temp gauge sender is mounted in a port that was in the back
side
> of the water pump housing.  As I recall, it's in the vicinity of the
> thermostat somewhere.
> The other temperature reading is from what I though was the oil
temperature
> port which is next to the oil pressure port, but turns out to be coolant.
> If that is the right place to measure coolant, then I'm kind of happy (not
> about being stupid about oil temp) that the coolant temperature is much
> lower than I previously thought.
>
> Also I wonder about why such a big difference ?  The only thing that I
could
> think of is that one is on the outlet side of the radiator, and the other
is
> on the hot side coming out of the engine before it goes to the radiator.
> Since I have no clue about where the coolant comes from that I'm measuring
> next to the oil pressure sender, I really don't know.
>
> BTW My water temperature gauge is a VDO Vision series analog gauge, and
the
> oil temperature / pressure is a Aerospace logic digital display.  The Aero
> Logic is suppose to be accurate to within 1 degree, so I know that
> temperature is pretty accurate.  The analog gauge really doesn't say what
> its' accuracy is, so I guess that you can only ASSUME it's correct.
>
> So, where should I be measuring coolant temperature ?
>
> Steve Brooks
> Cozy MKIV N75CZ
> Turbo Rotary
>
>
> >>  Homepage:  http://www.flyrotary.com/
> >>  Archive:   http://lancaironline.net/lists/flyrotary/List.html
>


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