Repairs or replaces defective parts, such as water pump, carburetor, thermostat, gears, solenoid, pistons, valves, and crankshaft, using hand tools.

Records repairs made, time spent, and parts used.

Positions and bolts engine to engine stand.

Grinds, reams, rebores, and retaps parts to obtain specified clearances, using grinders, lathes, taps, reamers, boring machines, and micrometer.

Tests and inspects engine to determine malfunctions and locate missing and broken parts, using diagnostic instruments.

Repairs and maintains gas internal-combustion engines that power electric generators, compressor, and similar equipment.

Tests and repairs magnetos used in gasoline and diesel engines, using meters, gauges, and hand tools.

Repairs and maintains portable saws powered by internal combustion engines, following manufacturer's repair manuals and using hand tools.

Dismantles engines, using hand tools, examines parts for defects, and cleans parts.

Reassembles engines and listens to engines in action to detect operational difficulties.

Tests and repairs turbo or superchargers.

Repairs fractional-horsepower gasoline engines used to power lawn mowers, garden tractors, and similar machines.

Adjusts points, valves, carburetor, distributor and spark plug gaps, using feeler gauges.