What should the oil pressure be in a Lycoming engine?
What should the oil pressure be in a Lycoming engine? Use an oil pressure gauge of known accuracy. Look up the oil pressure limits in the Engine Operating Manual. If oil pressure falls within these limits then there isn't a problem. Generally on Lycoming aircraft engines oil pressure at 650 rpm with hot oil can be as low as 25 psi and as high as 100 psi starting in cold weather. How to test a fuel pressure regulator axleaddict? Note: if there's no test port or you don't have the correct adapter, remove the test port valve and connect the...