Today's Message Index:
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1. 05:39 AM - Re: Fuel return lines (Gary Casey)
2. 05:39 AM - Re: Letters & S.B.'s (Gary Casey)
3. 09:50 AM - Re: Letters & S.B.'s (Philip A. C.)
Message 1
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| Subject: | Re: Fuel return lines |
--> Engines-List message posted by: "Gary Casey" <glcasey@adelphia.net>
<<I have flown many Cessna 206s and 207s with either IO520F or TSIO520M
and on all of them the fuel selector has 3 positions, Left, Right and
Off. It does not have both and Off is between Left and Right so one has
to pass through Off whenever one changes tanks. The engine never quits
doing that. In fact you can pause for a second or two without it
missing. There must be enough fuel in the fuel pump or lines to keep it
running for a bit.
Dan Rogers>>
I sit corrected - I haven't paid that much attention, I'm afraid. On my
Cessna and others I have seen the "off" position is not between left and
right. I assumed (not a good thing) that all fuel selectors were pretty
much made the same - mine has 4 quadrants covering 360 degrees, left, both,
right, off and then back to left. Remove the label that says both and you
have a normal low-wing selector. Wrong, I guess. To make matters worse, I
just looked at the selector that came with my experimental. It has a
quadrant that covers 180 degrees and goes off, left, right. There is
another "off" between left and right (one port closes before the other
starts to open). On my experimental I'm installing two cable-operated
shutoff valves, one for each tank operated by two levers. The idea is that
you can't have a handle fall off or a valve jam in a way that would shut the
fuel off, but only shut it off for one tank. And if it came to that one can
shut off all the fuel at the tanks, not in the cockpit.
Gary Casey
Message 2
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| Subject: | Re: Letters & S.B.'s |
--> Engines-List message posted by: "Gary Casey" <glcasey@adelphia.net>
<<Does anyone know where I could find Service Bulletins and Letters for the
old Wright and Pratt and Whitney round engines?
Thanks
Bill>>
You might want to try Precision Airmotive - they overhaul P&W round engines
and I would assume they have or would know the source for the service
bulletins.
Gary Casey
Message 3
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| Subject: | Letters & S.B.'s |
--> Engines-List message posted by: "Philip A. C." <philipac@suncraftgroup.com>
"The Aircraft Engine and Its Operation
A reprint of the classic engine book by Pratt & Whitney, 1955 version,
reprinted in looseleaf binding. It's a beautifully done book on radial
engines, loaded with color illustrations. There are 150 pages in black and
white, 36 pages in color, and two fold-out pages, one color, for about 188
pages total. The actual colors are a little different from the original, and
some of the color pages came out with an overall very light yellow cast,
unavoidable without much higher cost. The information is exceptionally
clear, and the colors work just fine to show the things the manufacturer
intended. Also contains the famed Pratt & Whitney "Letters" (about 35 of
them, in black and white), the P&W booklet on Torquemeters (color),
Operating Curves, and two types of superchargers (color). "
You can get it here:
http://www.flybyeknightpress.com/
If you need more info, e-mail John Deakin (his address is on the site). He
loves radials and knows much about them.
Philip
-----Original Message-----
From: owner-engines-list-server@matronics.com
[mailto:owner-engines-list-server@matronics.com]On Behalf Of
WRBYARS@aol.com
Subject: Engines-List: Letters & S.B.'s
--> Engines-List message posted by: WRBYARS@aol.com
Does anyone know where I could find Service Bulletins and Letters for the
old Wright and Pratt and Whitney round engines?
Thanks
Bill
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