O.S. Engine OS44307000 cover plate for FSa-72 crank case  [OS44307000]

Cover plate for FSa-72

This cover plate is an RC-scale replacement part listed under O.S. Engine OS44307000 and intended for use with components identified by the FSa-72 designation. It serves as a direct cover for the crank case area, providing a mounting surface and sealing interface on model engines.

Installation notes: the plate aligns to the existing crank case dowel pins and fastens with the original screw locations, so retain the engine’s stock hardware when possible. Fitment checks during assembly ensure proper clearance to the carburettor and cooling head on the FSa-72 engine layout.

Tuning and maintenance role: this cover plate supports consistent crankcase sealing which can affect engine starting and idling behavior on RC models, and it should be inspected for flatness and fastener torque during routine engine maintenance. Keep the part free of debris and confirm gasket or sealing surfaces are intact before reassembly.