Crank case Breather

[AGoodfellow]

I hope that this doesn't sound silly. I have a 18s the engine is a 1952 and the question is does the crankcase have a breather and where is it.

thanks for the help
Andrew

[Brad]

Left side of the engine in the crankcase behind the primary chain case. Its a bit tricky to get at. You often get a drip of oil or two from it after a run.

[Pharisee]

The breather is the threaded port coming from the main bearing housing. There should be an adaptor screwed into it with a diaphragm on the engine side and usually a copper pipe and cap nut on the other. The pipe usually is bent and points down towards the ground.

[AGoodfellow]

Many thanks and sorry about the late reply.

Can confirm that the breather is not blocked. but i have found that the crankcase had about 2 cup fills of oil in it.
Any suggestions to why and what i can do about it please.

thanks
Andrew

[robcurrie]

Search the forum for "wet sumping" and you will find a wealth of information on the subject. Happy reading.

Rob C

[AGoodfellow]

thanks
Andrew

[spookefoote1956]

What's the thread side on the end directly next to the down pipe