Jim

Thanks for your response. Glow plug was replaced needle screw is fine no air bubbles OS75 AX engine. Crankshaft "looks/feels" fine but I also concluded that its a bent crankshaft. I don't have a dial indicator so its hard to tell. Ordered a new one this morning.

Although I have not looked at the piston rod I don't think a bend there would result in an after run fuel "dump". I think the bent shaft resulted in an air gap that allows fuel to be pressured past and out the venturi (its a side mounted engine).

Will update,
Lee