O.S. Engine OS40661100 Rocker Arm FS-62V replacement part for FS-62V nitro RC engines  [OS40661100]

Rocker arm role and installation

This RC-scale rocker arm is specified for the FS-62V engine designation and serves the mechanical function of transferring camshaft motion to the valve train. It is presented as a direct replacement component for worn or damaged rocker assemblies in FS-62V nitro engine setups.

Installation notes: remove the engine head and rocker shaft assembly following the engine maker's service procedures, inspect mating surfaces and the rocker pivot for wear, replace the rocker arm on the original shaft, and reassemble while keeping parts clean. Do not alter valve clearances without measuring, and verify smooth free movement of the rocker and valve before final reassembly.

Tuning and maintenance: the rocker arm affects valve timing and consistency of valve lift under load. Regular inspection during routine engine service helps maintain predictable idle and throttle response. Replace the rocker arm if you detect excessive play, surface scoring, or irregular valve seating.