Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

A little Flywheel trueing going on today, it was not bad but a little flicker. The problem was traced to a slightly oversize bore (in Flywheel) when you tighten the set screw on flywheel it pushes dowel (axle) to one side of bore, also the set screw is closer to one side (piston side) far from other end (drive pulley side) and this compounds the problem. I have corrected and no visible run-out now. [ Guests cannot view attachments ]