I have an IO375 Aerosport Power engine on my RV7. Only 90 hours.Did you observe some seepage from the orange muffs on the cold sump ?
it seems oil comes from behind and make them lazy?
I imagined those kind of tubes are sealed ?
I have 600 hours on mine in only about a couple years and I'm having the same problem. They appear to be soaking through. Does anyone know where I can get some replacements?