SuperCubDriver
Well Known Member
After engine start taxied out towards the holding point when I suddenly heard Miss Dynon saying "Oil Pressure Low". It was around 15 psi and in the red. Pulled the aircraft back into the hangar and checked the indication with a mechanical gauge, same same. Then the ball in the oil pressure adjuster housing - all good. Next was draining the oil to have a look at the inlet screen (having a Raven inverted system). After the oil drain I realized that the hose from the engine case to the pressure sensor on the firewall might be the cause. I blowed through it and I immediately knew this is it. Refilled the engine with fresh oil and pressure went up as usual.
So it might be a good idea to blow through the pressure hose now and then to avoid oil pressure indicator problems.
So it might be a good idea to blow through the pressure hose now and then to avoid oil pressure indicator problems.