I drained the oil. 1.5 quarts left.
The leak is from the smaller of the two sensors at the back of the engine at the top. Quite a steady stream.
What does this sensor do and how do I get it out. It seems to be between 1" and 1 1/16". A short socket is too short and a long socket does not clear the back of the intake manifold. I am thinking about a crow foot or some special tool.
The engine seemed to run fine, although very briefly as I determined the oil leak.
I have ot go ride a bike now.
Thanks.
Fred Joslin