Jeff R
Well Known Member
I am getting close to my first engine start and have started to check the oil and fuel lines for pressure readings. I had a buddy spin the prop by hand, with the top plugs out, and the Dynon Skyview indicated around 40 psi of pressure after few rotations. Great! I have oil pressure!
Well, he stopped spinning and I waited for the pressure to go back down. It didn't. For a good minute it fluctuated between 35 to 45 psi. It started trending down, but after several minutes was still around 25 psi, fluctuating a bit. I checked an hour or two later and it was 13 psi. Prior to the test it had read 0.
All I can think of is that the restrictor fitting to the oil pressure transducer might be clogged such that it cannot relieve the pressure. I didn't try to disconnect the fitting as it still showed pressure, but wonder if anyone else can come up with another reason or how I best go about solving it.
It would not be good to have a oil pressure guage that indicated all was well when your actual pressure was heading south.
Well, he stopped spinning and I waited for the pressure to go back down. It didn't. For a good minute it fluctuated between 35 to 45 psi. It started trending down, but after several minutes was still around 25 psi, fluctuating a bit. I checked an hour or two later and it was 13 psi. Prior to the test it had read 0.
All I can think of is that the restrictor fitting to the oil pressure transducer might be clogged such that it cannot relieve the pressure. I didn't try to disconnect the fitting as it still showed pressure, but wonder if anyone else can come up with another reason or how I best go about solving it.
It would not be good to have a oil pressure guage that indicated all was well when your actual pressure was heading south.