Generator Design Features

Ford Fusion vehicles are equipped with three-phase alternators with electromagnetic excitation, with built-in rectifier unit and electronic voltage regulator. The fan impeller and drive pulley are located on the generator shaft. The shaft is mounted on sealed type bearings that do not require additional lubrication during the entire service life. The shaft is driven from the crankshaft pulley by a V-ribbed belt.



Lids 5 (pic. 10.2), 14 and stator 21 are tightened with four bolts 4. The rotor shaft 9 rotates in ball bearings of closed type 6 and 11.


The generator stator is equipped with a three-phase winding, made according to the scheme «triangle» (phase windings have three attachment points).

The excitation winding is located on the rotor 9. The excitation winding leads are soldered to two copper slip rings 10 mounted on the rotor shaft 9. Power is supplied to the excitation winding through two contact brushes 17 and slip rings 10.

Contact brushes are located in the brush holder 18, combined in one housing with a voltage regulator.

The generator connections are shown in the wiring diagrams.

Depending on the engine model, generators of various capacities, but similar in design, can be installed on the car.

Note. Codes of arising malfunctions of the power supply system are stored in the memory of the electronic engine control unit. They can be read using a scanner at the service.

Note. Recently, many companies have appeared that specialize in the repair of imported starters and generators. There you can diagnose a faulty unit, purchase spare parts for any model of the generator (starter), get qualified advice. If you are not sure you can repair the generator (starter) independently, it makes sense to contact such a company, where the repair of these units will be performed quickly, efficiently and, as a rule, at an affordable price. However, on high mileage vehicles, it is often more cost effective to replace the assembly with a new one than to replace failed parts.