Hi Ed,
I am hoping that I can get what little use I need out of it. Good compression and seal right now, and it is a Big Jim engine. Nothing has been done to it since Jim reworked it. The "other one", much newer I think, is the single ring but it needs bearings and a new ring. Just a substitute in a plane where I was initially was going to use a ST .46. The plane is smallish, and the .40 will be plenty for it (won a NATS with a Fox .35)...
Fuel amount? I am trying to decide how big a tank to install. Pretty sure I can fit a 4 1/2 oz, "maybe" a 5 oz., before I have to go to a weird size/shape one.
Big Bear
Well, you got the engine from me, so I'll tell you how
I used it.
It was mounted in a slightly modified/enlarged Tutor that had a 25% foam wing and flew beautifully.
I always ran Taff's 10% PA Blend fuel with Caster oil, a 4.5 oz tank (IIRC) , a Big Art strap-on tube muffler with the tail pipe opened up a little, ST-40 NVA and the same venturi thats in it now, plus two or three head shims, with a 10/6 wooden prop. Top Flite or BY+O.
It was always a stone-reliable, no-nonsense, no-fiddling engine that made good power. In fact, once it was set-up, I never even touched the needle valve but with a larger venturi I have little doubt that theres more power available.
I still have the mate to it if you decide that you want/need it.
Good luck with it.