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

Yes, as much as I like the Chinese model engines, this shows that you should do at least a partial disassembly and inspection before running them.

I think it would be better if you put one lubricating hole on the bottom rod cap rather than two on the top side. This area gets the most force during the power stroke, and the two holes remove material where it is needed most. One hole on the bottom cap should provide plenty of lubrication in a splash system setup.

Thanks for posting your detailed modifications of the H75 engine.👍🏻