View Single Post
Old 09-01-2011, 10:01 PM
Senior Member
Join Date: Feb 2006
Location: Arroyo Grande, CA
Posts: 4,465
Likes: 0
Received 0 Likes on 0 Posts
Default RE: 4C crank case drain

Magnum 4 stroke of 70 and greater size plumb back to the intake. Ditto for O.S 120s. All of the new designed O.S engines do this internally. It's not a bad idea. Keeps the spit off your fuselage and doesn't seem to hurt performance any.