I brought my plane home from annual this morning. Temp ran in the red (over 240) at cruise. Temp increased to this level on climbout to 5,500 feet and stayed there the entire trip home which was an hour flight. Outside temp was around 95 degrees, but it doesn't matter, as it nearly gets in the red in the middle of winter. I have complained and complained and complained about the high oil temps ever since i've owned the plane which is over 8 years. I've had two different mechanics in the past 8 years or so. Had the engine overhauled 250 hours ago and it's the same result. I've had the cluster gage checked, and this annual I had my mechanic install a new oil sensor. Mechanic called it a bulb. It made no difference. I have a '64E with a iO 360. I read the MAPA list quite a bit and the only thing I can conclude is the engines run hot on my model. Most of the postings I've seen talk about the baffling being the problem. My plane has a doghouse and it's not perfect but was reworked/parts replaced when the engine was overhauled by my mechanic. None of it has made any difference. My mechanic does not think the engine is really running that hot, but I'm not so sure. If you have any findings, I'm all ears!
