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04-10-2009, 09:04 AM
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Join Date: Aug 2007
Location: Two Rivers, WI
Posts: 278
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Question about fuel transducer
What size ID tubing has everyone used connecting the transducer loop line? Also did you use Steel or Aluminum?
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04-10-2009, 09:35 AM
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Join Date: Jan 2005
Location: Ottawa, Canada
Posts: 2,357
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Fuel pressure transducer or fuel flow transducer?
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04-10-2009, 09:42 AM
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Join Date: Aug 2007
Location: Two Rivers, WI
Posts: 278
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Sorry
Fuel flow.
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04-10-2009, 10:23 AM
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Join Date: Jul 2006
Location: Corvallis Oregon
Posts: 3,547
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It goes
In the feed line between the boost pump and the firewall..at least it does on the FI system..So its plumbed in the _6 aluminium line using standard AN6 flare fittings.
Frank
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04-10-2009, 02:28 PM
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Join Date: Jan 2005
Location: Ottawa, Canada
Posts: 2,357
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I used -6 size Aeroquip aircraft flexible hose covered with firesleeve.
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04-10-2009, 03:25 PM
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Join Date: Mar 2005
Location: SE Florida
Posts: 1,499
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I suggest you go read JPI's Installation Manual for best location and installation of the fuel flow transducer. See pages 8 & 9 of the manual below.
http://www.jpitech.com/manuals/06/In503ffRevC+Diff.pdf
Charlie Kuss |
04-25-2009, 01:54 PM
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Join Date: Mar 2008
Location: KDVT, AZ
Posts: 132
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How is fuel flow calulated on an I/O engine.
I'm required to have a return line, and it would appear some fuel would be returned to the tanks, and not actually burned.
I'm installing a Dynon transducer w/ a D-180
__________________
Chris
RV-7A
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04-25-2009, 03:42 PM
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Join Date: Mar 2005
Location: Dallas area
Posts: 10,762
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If you have a return line, you must use 2 transducers, with the "return" transducer subtracting from the "feed" one.
__________________
Mel Asberry, DAR since the last century.
EAA Flight Advisor/Tech Counselor, Friend of the RV-1
Recipient of Tony Bingelis Award and Wright Brothers Master Pilot Award
USAF Vet, High School E-LSA Project Mentor.
RV-6 Flying since 1993 (sold)
<rvmel(at)icloud.com>
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04-25-2009, 07:27 PM
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Join Date: May 2006
Location: Pocahontas MS
Posts: 3,884
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Are you using one of the 'standard' mechanical injection systems for Lycs, with the purge valve return line? If so, you shouldn't need the 2nd transducer. If you're using an automotive type injection system with continuous bypass type mechanical pressure regulator, then dual transducers would be needed.
Charlie
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