O.S. Engine OS40614000 Head Gasket for FS-62V  [OS40614000]

Head gasket for FS-62V

This O.S. Engine head gasket is an RC-scale replacement part designated by model OS40614000 and intended for use on FS-62V engines. It serves as the combustion chamber seal between the cylinder head and crankcase, so correct fit and surface condition are essential for consistent compression and reliable running.

Compatibility is limited to the FS-62V family as indicated by the product designation. Do not attempt installation on other engine families without confirming fit from original engine documentation or an authorized parts list.

Installation notes: clean mating surfaces before fitting, ensure head and crankcase faces are flat and free of old gasket residue, and replace the gasket whenever the head is removed during maintenance or tuning. Use the engine manufacturer’s recommended head nut tightening sequence and torque values rather than relying on generic settings.

Tuning role: a correctly installed head gasket maintains combustion seal and helps the engine hold consistent compression during tuning changes such as carburetor adjustments or head shimming. Poor sealing can mimic fuel or timing faults, so inspect the gasket when diagnosing irregular idle, low power, or inconsistent running.