The component that moves in an alternator, called a rotor, has permanent magnets that rotate around the iron plates of the stator to produce alternating current (AC). Only until the engine or turbine is already operating will a Rotor interact with a Stator to provide a charge since Rotors require existing motion to function. A steel disk with teeth known as a trigger wheel is mounted to the crankshaft or camshaft. The ECU receives electrical pulses from the wheel's passing teeth that indicate the engine's speed and direction at any given moment. The systems' layout is quite straightforward, and they trigger OEM ignition systems similarly. The harmonic balancer is mounted with a trigger wheel that rotates with the crankshaft and has spokes, studs, magnets, or holes.
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EMP
The Engineered Marine Products ROTOR & TRIGGER WHEEL EMP is compatible with MerCruiser V6, 225-390 Hp GM & MIE engines with Thunderbolt HEI ignition. It has a better crankshaft trigger wheel...
EMP
The rotor is a moving part of an electromagnetic system used in an electric motor, generator, or alternator. The combination of the windings and magnetic fields generates torque around the rotor's...
EMP
This product replaces:300-26090
EMP
Distributor caps and rotors are in charge of transferring the voltage from the ignition coils to the cylinders in order to ignite the fuel-air mixture inside the engine cylinders and produce power...
