O.S. Engine OS28214000 Cover Gasket S42 GT22  [OS28214000]

Cover Gasket for S42 and GT22 Engines

This O.S. Engine cover gasket is an RC-scale replacement part listed as OS28214000 and intended for use with S42 and GT22 engine covers. Its role is purely as a sealing component between the engine cover and crankcase to preserve internal compression and prevent fuel or crankcase leaks during normal running and bench maintenance.

Installation is straightforward for hobby workshop use: ensure mating faces are clean and free of old gasket residue, align the gasket to the cover ports, then reinstall the cover screws following the engine maker's tightening sequence and torque guidance found in the engine manual. Avoid overtightening fasteners and inspect the gasket surface for creases or damage before final assembly.

As part of routine tuning and upkeep, a sound gasket helps maintain consistent compression and predictable running behavior on nitro RC models; if you notice seepage, oil pooling, or loss of compression, replace the gasket and recheck engine settings on the bench rather than adjusting carburetion immediately.