love the reply - - - - I thought everybody knew that
-----Original
Message-----
From: Barr, Scott <sbarr@McCarty-Law.com>
To: 'Gary Schneider'
<garygret@sbcglobal.net>; 'Tony Drews' <tony@tonydrews.com>; FOT
<fot@autox.team.net>
Sent: Mon, Aug 18, 2014 6:15 pm
Subject: Re: [Fot] EGT
Probes?
Right - naturally I knew that. I mean, who doesn't, right? ;-)
I'll pull the old ones out and replace them and send or bring the new ones to
you to play with.
Scott
From: Gary Schneider [mailto:garygret@sbcglobal.net]
Sent: Monday, August 18, 2014 5:13 PM
To: Barr, Scott; 'Tony Drews'; FOT
Subject: Re: [Fot] EGT Probes?
As you likely know a thermocouple is just two
dissimilar-metal wires welded
together at the tip. They are made tiny for
quick thermal response and not
much can survive 1400 degrees of corrosive
gases for extended periods. I'd
guess the tips corrode and go open or
resistive. If you give me a failed one
sometime I'd be interested in taking it
apart and making some comparative
measurements. I believe the EGTs are all
Type K and I can compare to
temperature references we have at work for
calibration. We have microscopes
with cameras too.
Gary
________________________________
From: "Barr, Scott"
To: 'Tony Drews'
Sent: Monday, August 18, 2014
3:38 PM
Subject: Re: [Fot] EGT Probes?
That's what I've been thinking. Do
the probes foul, or do the wires just
break? I've been told the wires are a
little fragile.
Scott B.
-----Original Message-----
From: Tony Drews
Sent: Monday, August
18, 2014 3:37 PM
To: Barr, Scott; FOT
Subject: Re: [Fot] EGT Probes?
Yes,
that's the normal failure mechanism for the EGT gauge. I'm on my 2nd
set
of
probes.
Tony Drews
At 03:26 PM 8/18/2014, Barr, Scott wrote:
>So if my EGT
stops working or works only intermittently, is it likely
>that I need new
probes? (I did check to see that the connections are
>still...connected) The
tailpipe color looks good (a nice dove grey),
>but I'm getting no reading on
one side of the gauge and a low reading
>on the other side.
>
>Scott B.
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