MartinFleet
I'm New Here
Can anyone offer advice on an inverted oil system oil pressure conundrum please?
I recently purchased a new Christen tank and a second hand valve. I first fitted the tank and test flew, noting that oil pressure at idle was about 40psi, and at takeoff revs was somewhere off the top of the guage, but probably about 115psi (guage goes to 100psi).
I then fitted the inverted valve, and idle had come up a little to about 50psi but ground running at 2500 gave only about 60psi. I put about four turns on the pressure relief valve adjuster to bring the idle up to about 65psi and the 2500rpm pressure up to about 75-80 psi. This seems a little low to me.
Can anybody offer any insight as to why fitting the Christen valve has narrowed the oil pressure range quite so much?
I recently purchased a new Christen tank and a second hand valve. I first fitted the tank and test flew, noting that oil pressure at idle was about 40psi, and at takeoff revs was somewhere off the top of the guage, but probably about 115psi (guage goes to 100psi).
I then fitted the inverted valve, and idle had come up a little to about 50psi but ground running at 2500 gave only about 60psi. I put about four turns on the pressure relief valve adjuster to bring the idle up to about 65psi and the 2500rpm pressure up to about 75-80 psi. This seems a little low to me.
Can anybody offer any insight as to why fitting the Christen valve has narrowed the oil pressure range quite so much?