joelhaynes
Joined: 11 Jan 2006
Posts: 19
Location: Bozeman, MT
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 Posted: Thu Jan 18, 2007 1:54 pm Post subject: high fuel pressure readings |
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Steve,
I experienced the same problem in my 7A (ECI 0-360, MA 4.5 carb, and Dynon EMS engine monitor). In my case I saw fluctuating fuel pressure going back and forth from 7 to 15 psi on two flights. Bart at AeroSport Power believes that it is highly unlikely that the engine driven fuel pump would be producing that much pressure (which is why I didn't have a problem flying the plane again). My conversation with Dynon suggested it was likely a sensor problem. The problem has not come back but interestingly, my monitor shows 1 psi of pressure when there is no pressure on the system. I suspect I will be replacing the sensor in the near future.
Joel Haynes
7A N557XW 70 hours
Bozeman
>Today my Fuel Pressure was consistently reading above 7.5 psi and at one
>point was reading 9.1. This was at cruise with the Facet pump off at 45 F.
>Additionally, it was erratic sometimes as low as 4.5.>
>
>Im flying behind an XP 0-360, MA 4.5 carburetor and EIS 4000 with standard
>plumbing. Some time ago I was having low pressure problems and changed the
>sensor which seemed to fix the problem. Im thinking the sensor is just
>reading to high.
>
>It doesnt seem like the engine pump could actually be producing too much
>pressure. If it were, does anyone know if there is any potential harm to
>the carburetor?
>
>Has anyone else experienced similar problems? What should the Fuel
>Pressure actually be? Has anyone got any ideas?
>
>Thanks,
>
>Steve Glasgow-Cappy
>N123SG RV-8
>Cappy's Toy - 400 Hours
[quote][b]
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