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Engine Rotation Terminology

Engine rotation direction is determined by observing Flywheel rotation from the flywheel end of the engine looking forward to the pulley end of the engine.
Normal (Standard)
Rotation: Counter-clockwise (left hand)
flywheel rotation
Reverse (Opposite)
Rotation: Clockwise (right hand)
flywheel rotation
Note: Propeller rotation is not necessarily the same as engine rotation. Do not rely on propeller rotation in determining engine rotation.
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