I bought a flying RV-6A with an Aerosport 0-360-A1A and an MVP-50 engine monitor.
Lately I have been getting high fuel pressure warnings. The engine will be running along at 5 psi for some time and then there will be one or more excursions to sometimes 12 psi and higher. Then back to 5 psi for awhile and then another excursion. No predictability - can happen at any time and comes and goes during a flight.
During the excursions the engine continues to run just fine. I think I see an increase in fuel flow during the excursions but cannot be sure because my fuel flow readings have never been all that stable.
I assume this engine uses the standard Lycoming low pressure mechanical pump. If so, is it possible for the pump to fail in a manner that would produce higher fuel pressure - as high as 12 psi or more? Doesn't seem like it could but thought I'd ask - seems like maybe a sensor or perhaps a wiring issue?
Also, would the engine be expected to flood with 12 psi or more at the carburetor fuel inlet?
Appreciate any help or comments.
Thanks,
Bruce
Lately I have been getting high fuel pressure warnings. The engine will be running along at 5 psi for some time and then there will be one or more excursions to sometimes 12 psi and higher. Then back to 5 psi for awhile and then another excursion. No predictability - can happen at any time and comes and goes during a flight.
During the excursions the engine continues to run just fine. I think I see an increase in fuel flow during the excursions but cannot be sure because my fuel flow readings have never been all that stable.
I assume this engine uses the standard Lycoming low pressure mechanical pump. If so, is it possible for the pump to fail in a manner that would produce higher fuel pressure - as high as 12 psi or more? Doesn't seem like it could but thought I'd ask - seems like maybe a sensor or perhaps a wiring issue?
Also, would the engine be expected to flood with 12 psi or more at the carburetor fuel inlet?
Appreciate any help or comments.
Thanks,
Bruce