O.S. Engine OS44501110 Cam Cover Gasket O-ring for FS-200S FS-200S-FI  [OS44501110]

Cam cover gasket for FS-200S series

This O.S. Engine cam cover gasket is an RC-scale replacement O-ring designed for the FS-200S family of nitro engines. It restores the seal at the cam cover to prevent fuel or crankcase leaks that can affect engine running and idle stability.

Compatibility is specific to the model names shown: FS-200S and FS-200S-FI. Do not assume fit for other engines unless explicitly listed; use the exact model codes when checking parts lists or service manuals.

Installation notes: inspect the cam cover groove and mating faces for dirt or burrs before fitting the O-ring, seat the ring without excessive stretching, and confirm the cover aligns evenly before tightening fasteners. Use a suitable, small amount of lubricant made for O-rings if needed to ease installation, and replace the O-ring if it shows cuts or permanent deformation.

Role in tuning and maintenance: a properly seated cam cover O-ring preserves crankcase pressure and prevents fuel drips that can alter needle settings or cause inconsistent running, so replace suspect seals during routine engine service or rebuilds.