Engine Crankshaft for GEKO G83050 / G83055 Petrol Lawn Mower

Replacement engine crankshaft compatible with GEKO G83050 and G83055 petrol lawn mowers. This direct-fit spare part restores the mechanical connection between the piston assembly and the transmission, enabling correct transfer of reciprocating motion into rotational output. It is intended for engine repair and maintenance when the original crankshaft shows wear, scoring, bent journals, or as part of an engine overhaul to re-establish correct timing and bearing alignment.

Advantages

The crankshaft is manufactured to match factory dimensions and mounting points for an accurate fit in GEKO G83050 and G83055 engines. Precision-machined bearing journals and counterweights maintain balance and smooth rotation, reducing vibration and premature wear of connected components. Using a replacement crankshaft restores proper engine timing and compression relationships, improving reliability after repair. The component is suitable for rebuilds where bearings, seals, and connecting rods are inspected or replaced.

Suitable for

• Engine overhaul and rebuilds of GEKO G83050 / G83055 petrol lawn mowers
• Replacement after crankshaft damage: scoring, bending, or worn journals
• Maintenance jobs requiring restoration of bearing surfaces and timing
• Workshop repairs where original crankshaft fit and alignment must be preserved

Key specifications

• Compatibility: designed to fit GEKO G83050 and G83055 petrol lawn mower engines
• Type: single-piece crankshaft with integrated counterweights
• Material: hardened and ground steel for bearing surfaces and journals
• Finish: precision-machined journals and balance surfaces to factory tolerances
• Mounting: factory-positioned crankpin and main journal locations for direct replacement

How to use

Install the replacement crankshaft during engine disassembly following the mower manufacturer’s service manual. Remove the cylinder head, piston, connecting rod caps, and main bearing caps to extract the old crankshaft. Clean bearing housings and inspect bearing seats, crank journals, and connecting rod small ends for wear. Fit new bearings and seals as required, position the crankshaft into the engine block, and torque main caps and connecting rod caps to specified values. Reassemble piston and cylinder components, set ignition and valve timing if applicable, and verify free rotation before full reassembly.

Usage recommendations

Use with new main and rod bearings, replace seals and gaskets, and follow GEKO service torque specifications to ensure correct bearing preload and alignment. After installation, run the engine at low load and check for abnormal noise, vibration, or oil pressure deviations before normal operation.