O.S. Engine OS44907000 Cover Plate FSa-110 crank case part  [OS44907000]

Cover plate for FSa-110

This cover plate is an RC-scale crank case replacement created for the FSa-110 designation shown in the product name. It serves as a direct-fit service part to restore or maintain the crank case enclosure on compatible O.S. engine assemblies, focusing on fit and serviceability rather than performance claims.

Installation is straightforward for model technicians familiar with nitro engine maintenance: remove the engine mounting or cooling head as needed to access the crank case face, retain original fasteners and alignment dowels, align the plate with the case openings, and secure using the existing screw pattern. Use appropriate hand tools and moderate torque to avoid stripping threads on the engine casing.

In tuning and upkeep workflows, the plate functions as an access and sealing component. It helps maintain internal case alignment and allows routine inspection or replacement of internal components without altering the engine’s intended timing or geometry. Use it when performing routine service, leak checks, or part replacements to keep the engine package consistent with original assembly.