Quote Originally Posted by KDoersom View Post
The cylinders are part of the case half so you can just pull a jug and send it for overhaul. Half to send half the engine.
The cylinder is part of the case but the cylinder head isn't. Most cylinder work is confined to upper cylinder parts so the 145 may be easier to work on because of the way they are built. What Jerry said is true, original parts are not available but for experimental applications, one can come up with suitable alternatives. Just send all your derelect 145's my way.