"Aluckyguess" wrote in message
I have a Bonanza V35 with a IO 470. Before and after engine overhaul the
oil
pressure after the engine warms up goes just into the red. They have tried
turning the pressure up but this seems to only make the pressure go up
when
cold. If the temperature outside is real cool the pressure goes over 200
psi. The engine builder said its in spec. I think there is a problem
somewhere. I want the oil pressure to run in the green. Does anybody have
any ideas on what could be causing this.

Start first by checking calibration on your oil pressure guage.
Then check the bypass valve for proper operation (a good rebuilder will have
replaced it).
Ask the rebuilder to see his records for bearing/crankshaft clearance
measurements because the pressure is going out the gaps.

I'm afraid its going to blow the gage out one cold morning.

More likely to blow out an oil cooler.

D.