Aluckyguess wrote:

I have a Bonanza V35 with a IO 470.

So you have an N35 or P35, a V35 has an IO520.


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

How do you know the gauge is correct? Check that first.