Hi everyone- I have a 1946 Neptune 15A1 1.5 hp that has extremely low compression. The cylinder is 1-9/16” diameter with a 1-1/2” stroke. My cylinder is very worn and the piston has a large side to side movement. The rings are free so I think it is time to replace the powerhead with a GOOD one. Anyone know where I might be able to find one for sale? Have been looking on the fleabay site for almost a year with no luck. Only see whole motors for sale. Thanks, Gary