@mechanism503: How does your engine actually start when you turn on the key? Thank starter motor is the muscle behind that first crank. A small electrical START signal activates the starter solenoid, which engages the starter gear with engine's flywheel and spins the crankshaft. This diagram shows the complete journey from battery - starter - relay - solenoid - starter motor - flywheel - engine. 🔧 MECHANISM - see how machines work #mechanism #Startermotor #Carmechanics #automotive #cartok