The OS49404160 is a replacement head gasket compatible with O.S. Engine GF40 series glow engines. It seals the joint between the cylinder head and crankcase to maintain combustion chamber pressure during operation and maintenance.
Use case: this gasket is supplied for direct replacement during standard servicing or complete engine rebuilds of GF40 units. Always fit a new gasket after removing the head to regain correct sealing and reduce compression loss.
Installation notes: ensure mating faces are clean and free from residue, position the gasket using dowels or locating features, and tighten the head bolts evenly in a criss-cross manner to avoid introducing distortion. Do not over-torque and verify faces are flat before assembly.
Maintenance role: a new, correctly fitted gasket preserves compression stability, which helps with consistent carburetor and ignition adjustments; replace the gasket if there is visible damage, warping, or fuel contamination.
Copyright © 2008-2026 rcjaz.co.uk All rights reserved
