GF40 Cylinder Component OS49403300 Replacement for GF40 Engines by O.S. Engine  [OS49403300]

GF40 Cylinder: Description

The product is supplied as O.S. Engine OS49403300 Cylinder GF40 and is intended for use with GF40-series RC nitro engines. It is provided as the cylinder component alone and is intended to correct piston fit and restore compression where the original cylinder is worn or damaged.

Application note: the item is identified by its product name and model number and is designed as a service part for RC engines. Replacing a worn cylinder re-establishes piston travel, sealing, and alignment within the engine case to help achieve reliable running and tuning performance.

Fitting instructions: remove the carburetor and cooling head, extract the piston assembly and check the crankcase and bearings for wear before fitting the replacement cylinder. Employ appropriate gaskets and adhere to standard engine reassembly techniques, ensuring correct piston-to-cylinder clearance and secure torque on head screws.

Listed as model OS49403300, this replacement cylinder is intended to restore GF40 engine assemblies and support regular maintenance and tuning of RC nitro vehicles using the GF40 engine series.