I have a lycoming O290 that has been sitting in my hanger for many years.  Has anyone used that engine in a Zenith application (I am building a 750 Cruzer)?  I understand that it will have to be torn down and inspected.  Information that I have found on the web say that it weighs about the same dry as an O235 but is 135 HP?  Thanks, Pete

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Comment by Jeff Spinney on July 4, 2018 at 5:30am

hi guys

i'm doing my research to try to pick an engine for a 750 STOL, just wondering if any one here would know how to acquire an engine mount for a 290 or 320. would you have to make it from scratch or does zen offer anything that will work? thanks.

Comment by Stan Cooper on May 24, 2018 at 5:00pm

Power rating and average dry weight for the different O-235 and O-290 models are in the Lycoming O-235 and O-290 series operator's manual.

Lycoming O-235 and O290 Series Operator's Manual Rev 5 January 2007

Comment by Scott Raynal on May 20, 2018 at 6:20pm

There is a video of Sebastien on the site flying a Cruzer in California that has an O-235. In the comments he seemed to indicate that, other than the additional weight up front, it flew well.  If you add another 20 HP at the same weight I bet it would be really nice.  Installation (mount) and FFW might be a challenge and repair parts might be a little harder to come across.  But hey....if it's just sitting there in the hangar give it a shot!

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