At the end of last year I fitted an air/oil separator to the engine. This was an effort to address high oil consumption (1 quart every 3 hours). I was always finding a lot of oil on the lower cowling after longer flights, and also finding oil streaks on… more »

Last weekend the good folks at J&S Aviation installed an M20 air-oil separator for me. I hope to have some photos up here in a couple of days. The separator is installed on the left side of the engine (looking from the front of the plane). It is cl… more »

Ever since the engine was rebuilt in 2003, the oil consumption has been a concern. I have been losing 1 quart of oil every 2.5 - 3 hours. Normally, this would indicate worn rings or sealing issues. However, the plugs are not oily, and a recent visual i… more »