Originally Posted by
John_M_
Yeah, those cams are only supported at the ends. why they didn't go with split shells. they bored the bosses, just a few more machining steps is all it would have taken. it would only have raised the cost of the engine by a couple hundred bucks, but it looks like it can be modified. Conley made a nice 1/4 scale blown V8 model engine, but they were several thousand dollars. I don't know what happened to Conley, but I haven't seen anything recent.
That was my idea: make threaded holes in the bulkheads to clamp down CNC made bearing shells. Assembly is going to be a nightmare, but it should be doable...
Thinking of making shallow oil grooves in the bearing shells of the crank in order to promote oil access to the running surfaces, not sure yet...