O.S. Engine OS4A066000 GF30 Pushrod for FS Engines  [OS4A066000]

Service Replacement for FS Engines

This pushrod is presented as a service replacement part for RC-scale FS engine valve trains. It bears the GF30 mark and is intended to operate within the FS engine parts range, transferring motion from the rocker or cam to the valve assemblies in nitro RC engines.

Fit and basic installation guidance: ensure pushrod length and end-fit match the engine rocker and valve tip before final assembly, remove the cylinder head or rocker cover as required by the engine model, and inspect for straight travel and sufficient clearance across the stroke. Use light lubrication on contact points and perform a final clearance verification at running temperature to prevent binding.

Tuning and maintenance role: the pushrod contributes to valve timing stability and should be checked when setting valve lash or carrying out top-end maintenance. Replace any pushrod exhibiting bending, scoring, or excessive wear to retain dependable valve actuation and tuning repeatability.