O.S. Engine OS28214400 Exhaust Gasket GT22  [OS28214400]

Exhaust gasket for GT22 engines

This O.S. Engine exhaust gasket is an RC-scale replacement part specified for the GT22 exhaust joint, designed to restore sealing between the cylinder head and the muffler flange on glow-powered model engines. It serves as a straightforward service item when exhaust leaks or inconsistent idle indicate a compromised seal.

Installation is simple: ensure mating surfaces are clean and free of old gasket residue, position the gasket evenly on the exhaust port, and reassemble the muffler using the original fasteners. Avoid excessive force on the flange during reassembly to prevent deformation of the gasket or exhaust components.

In tuning and maintenance workflows the gasket helps maintain stable back-pressure and prevents exhaust leaks that can affect idle quality and throttle response, making it a small but practical part to keep in a basic spares kit for GT22-powered RC models.