Wiring like the large, red, positive connection to the starter on the back of this alternator is just as important as the alterna- tor, starter and batteries. Connections must be clean and tight. Cables must have low resistance.
ELECTRICAL PM T
Attention to electrical system maintenance will prevent a no-start or sudden loss of power — and extend alternator life. BY JOHN BAXTER
he alternator connects the engine and the electrical system. It converts rotating power from the crankshaft to 14-volt current to charge
the batteries and operate all lighting, gauges, the engine ECM and the electronic portion of the injection system. The starter plays the reverse role, converting the battery's stored electricity into cranking power.
34 OVERDRIVE FEBRUARY 2012
While the alternator is fairly trouble-free, its function and long life depend on battery maintenance and the maintenance of all the wiring and ground systems that ensure low-resistance electrical circuits. A certain electrical system symptom can signal a problem in one or more areas, so maintenance and troubleshooting should not be restricted to one or two components.
Photo courtesy of Leece-Neville
