Originally Posted by Bunny
Originally Posted by Bobajobbob
When you say "starting the engine after wet sumping" what do you mean?
When the M3W has been standing for an extended time (think weeks) without the engine being run then there is a tendency on many engines for oil to drain from the oil tank, past the oil pump into the crankcase. On my car, around 2 Litres ends up in the wrong place. When the engine is subsequently started, the oil is pumped back up to the oil tank where it belongs. A small amount may also be 'burped' out of the breather pipe which connects the crankcase to the air intake. This can dribble down through the air filter and end up on the floor if it's not all absorbed by the air filter element.

This is a feature of many dry-sump motorcycle engines so we cannot point the finger at MMC this time!


Many thanks. The car hadn't been driven for a couple of weeks so that is a possibility. The fluid did appear to be dripping down from the air filter area although the smell does appear to be more petrol than oil. Of course this being a Morgan there may well be petrol leaking somewhere else and I am being distracted by a more obvious but benign oil leak.

92 Connaught Green Plus 4
Triumph Bonneville 865