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Crank Case Breather


Well-Known Member
Supporting Member
Mar 17, 2007
Reaction score
Cub Pilots,

I've heard almost everyone experiences slight oil discharge from the crank case breather tube, resulting in oil streaks down the belly, and a post flight wiping down ritual.

I can't recall, but vaguely remember someone talking about modifying the length of the breather tube to alleviate the problem. Any other ideas would be greatly appreciated. The oil streaks aren't major, just looking for a method to improve the A-65.


J-3C, NC9914H
Olympia, WA

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