N531EM Condition Inspection 2025

[A2022]

I found some particals in the oil suction screen. It appears to be either adhesive or gasket material. I did replace the front crank seal twice. The first time using pilobond. I made the mistake of applying it to both surfaces (as instructed) instead of only the seal surface. so, when I pushed the seal in, the adhesive on the crank case was just pushed into the engine. that was about 6 years and 600 hours ago. I replaced the seal after 50 hrs of installing it because I left a string of adhesive on the crank by accident and that failed the seal. pilobond becomes hard. the second time I replaced the seal I used 737 silicon adhesive and have not had any further issues.

I found a little wrench to tighten the oil pressure regulator. it was finger tight and weeping. those goofy copper split washers are worthless. the torque is so low upon installation that the part is allowed to move very slightly (vibration) and over time the seals fail. use .040 safety wire for the oil pressure regulator.

[A2022]

draining the filter oil the EZ way... and lubing the drain plug. this copper anti-seize has worked well for me.