Q: Dear Steve,
I have a 1961 172B and during climbout, the oil temp pegs the gauge. I see no difference in oil pressure, and oil on dipstick shows seven quarts. The service manual states that seven quarts is an acceptable level, although eight quarts is full.
I heated oil in a deep fryer to 180 degrees F and submerged the oil temperature probe in the oil. The needle of the temp gauge went to the middle of the instrument face. When I increase the oil temperature to over 190 degrees F, the needle pegs all the way to the right—beyond the redline. Same as when I was flying.
I have not installed an oil cooler or an extended oil filter. I have, however, plugged most of the open areas in the engine cooling baffling with high-temp caulk. The baffling is all new in 2013.
I just bought this 172 two years ago and I'm learning to fly it. Is my engine in danger? Or is it just an indicator problem?
Please login to continue enjoying members-only content
This section of the article is only available for our members. Please click here to join to view this part of the article. If you are already a member, please log in.