Oil leak
Experts
First, 0-320 B2A with constant speed prop.
Has anyone experienced a situation in which it appears that oil is accumulating in the base of the starter? I suspected the main crank seal but when I removed the starter there was an accumulation of oil in the cavity between the starter and the crank case. I looked hard for a case crack but found none. One of the case half bolts daylights in this cavity. I suppose it is possible that oil could leak between the case halves, into the bolt passage then past the threads and finally into this cavity.
The case bolt is along the portion of the case where the pressurized oil for the prop control is housed. And I do have a Whirlwind 151 that uses higher than typical control pressure.
I am asking if any of the folks that have a lot of experience with Lycomings have ever seen such a thing and I hope an easy fix.
Experts
First, 0-320 B2A with constant speed prop.
Has anyone experienced a situation in which it appears that oil is accumulating in the base of the starter? I suspected the main crank seal but when I removed the starter there was an accumulation of oil in the cavity between the starter and the crank case. I looked hard for a case crack but found none. One of the case half bolts daylights in this cavity. I suppose it is possible that oil could leak between the case halves, into the bolt passage then past the threads and finally into this cavity.
The case bolt is along the portion of the case where the pressurized oil for the prop control is housed. And I do have a Whirlwind 151 that uses higher than typical control pressure.
I am asking if any of the folks that have a lot of experience with Lycomings have ever seen such a thing and I hope an easy fix.