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

1, the ventilation mechanism uses the casting process, it is designed with a transmission fulcrum connected to the mechanical oil pump. It can make the engine get better lubrication at different speeds! The oil pipe is equipped with a valve.
2, change the original pump, increase the flow. At the same time use a straight drive.
3, cancel the original metal chain transmission, P3O parts with 45 degree misalignment gear transmission.
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