• The Biplane Forum is a large global active community of biplane builders, owners and pilots. From Pitts to Skybolts, to older barnstormers, all types are welcome. In addition to our active community, our content boasts exhaustive technical information which is often sought after for projects and maintenance. This information has accumulated over the 12+ years the forum has been in existence.

    The Biplane Forum is a private community. Subscriptions are only $49.99/year or $6.99/month to gain access to this great community and unmatched source of information not found anywhere else on the web. We are also a great resource for non biplane users, since many GA aircraft are built the same way (fabric and tube construction). Annual membership also comes with two BiplaneForum.com decals.



Crankcase Seal tips and tricks...

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

bjkirby2000

Aerobat, Hawk-XP, Lancair Super-ES, Smith MiniPL
Lifetime Supporter
Joined
Dec 8, 2010
Messages
234
Reaction score
21
Location
Orlando, Florida


Whenshe arrived we noticed the crankcase seal on the front of the engine spinning with the crank-shaft. It's not seized onto the shaft and can be held with a finger to keep it from turning while turning the prop. Oil on the front of the engine is minimal (if any) and the breather tube is clear.
Is it possible to ease the seal out (how) without damaging it, clean it and the case seal-seatwith MEK and pliaseal it back in? I'm hopeful that the spinning didn't cause the seal-seat to become oversized... yes-no-fogetaboutit?






bj
 

Latest posts

Back
Top