wasnt sure where to post this but my brothers friend gave me this old engine im sure is a plane engine and i was just wondering how old it is and what it might be out of. any other info is appreciated[8D]

that is an old mcoy control line engine,not sure what year though.

McCoy .35 Red Head Stunt. Used to fly one on my Flite Streak. Definitely a Control Line engine with no throttle control. I'm thinking that I had mine back about 1960 or so.

this specific engine was released in 1957, but mccoy technology took off in 1946-1947. this is vintage. you can find them worth anywhere between 10 and 400 dollars (obviously depending on condition).

wow i didnt know it was that old. i think ill take the head off and see what condition the piston is in.

really! i also have a couple old mccoy engines. not to steal this thread, but how can i identify year and value?

If the engine turns over smoothly, I wouldn't take it apart. If it's stiff, use fresh fuel and a hair dryer to loosen it up, then you can mount it on a test stand and try to start it.

The McCoy Red Head was a good engine for the era (late 60s). If it runs well, you can put it in a modern control line plane and fly it.

Dr.1

Be careful taking it apart. The pictures show more than one replaced machine bolt.

But I wouldn't run it or even turn it over by hand before oiling it. And let it sit for awhile with the oil in it.

The replaced bolt on the backplate appears to be loose. Don't run it before checking it out closely.

Those red-head McCoy engines were somewhat short lived in their day. They didn't have the toughest piston/sleeve combination. If you ever ran it lean, it needed a rebuild. Back then more than half the flyers commonly rebuilt engines. Guys would have the parts (piston/sleeve, conrod, wrist pin, gaskets) like people today have extra props. And they usually got their training when they ran their first McCoy.

At one time, they marketed McCoys in blister packs. They were an excellent deal for guys who knew how to keep them alive. But they usually didn't win any contests.

http://www.rcuniverse.com/forum/m_1777727/tm.htm

an old thread that may interest you

These engines are currently used in a Society of Antique Modelers event called "Foxacoy". The rules require either a Fox .35 Stunt or a McCoy Redhead .35.

These are iron piston, steel sleve engines and require 25-28% castor in the fuel.

If you have never run any of theseold engines I expect you will be surprised how well they run. Just don't let it run too lean.

jess

thanks for all of the info guys