WTB RV4 Conical Engine Mount - O290

[donagin]

Hi all. I have an opportunity to buy a fresh overhauled O-290 for a ridiculously low price - which is the top of my budget range. I am considering. It would require a non-dynafocal engine mount. Anyone have one they could part with? I know there are many factors to this decision - but the availability of the mount has a lot to do with what I decide. I often go several days between log-ins - so be patient on responses. Thanks.

[Aden Rich]

I would consider the other items that can affect your overall pricing outcome and installation times.
Finding that mount, unless ordered from vans may be a stretch.
The O-290, while cheap to buy, will cost you to get it installed and running. The baffling is not even close to the 0-320 engine. The other items that will be fun to deal with is the oil cooler and vent line. Also, I believe that engine doesn't have the option for a spin on oil filter. Just a screen, which is not a huge deal.
Then there is the issue of cylinders, pistons and rings. If you have an issue, it may be hard to find servicable or new parts. There is a experimental outfit that makes pistons, which is good for your engine on an RV-4. These rest of the parts are hit and miss for finding them.
The 0-235 or 0-320 (150hp) engines may be a better option in the long run.

[Flyhud]

Another alternative would be to disassemble the engine and send the case out to one of the case overhaul shops, they can convert it to a dynafocal mount. It’s pretty inexpensive. You’d be out the cost of the machine work, shipping and a handful of gaskets.

[Taltruda]

Although the O290 is cheap, even if given to him for free, will cost more in the long run. The resale value difference lost will be more than a O320.. way more. Same with the O235. Save and shop around for the right engine, even if it’s timed out.