O.S. Engine OS42566100 Push Rod Cover FSa-155 for FS Engine Parts  [OS42566100]

Push rod cover for FS engines

This O.S. Engine OS42566100 push rod cover FSa-155 is an RC-scale engine accessory intended for FS-series engine assemblies. It serves as a focused replacement part to protect the push rod area and tidy the engine exterior where push rods exit the crankcase.

Designed for hobby use on FS engine families, the cover clarifies the service area for routine maintenance and supports stable routing of push rods during setup and tuning. The description above reflects the part role, not a retrofit for full engine assemblies.

Installation is straightforward for users familiar with small glow engine maintenance: remove the engine head or cover as required by your engine's service practice, position the cover over the push rod opening, and secure it using the original mounting points and fasteners. Avoid altering engine timing components when fitting the cover and confirm free push rod travel before final tightening.

During tuning and running-in, the cover helps keep the push rod passage free from debris and gives a consistent reference for visual inspection. Check the cover periodically for cracks or deformation after heat cycles and replace if it shows wear that could interfere with rod movement.