Noload Test

1. Disconnect battery-to-generator terminal "B" wire. See Fig. 2 . Using an ammeter and voltmeter, connect negative ammeter lead to disconnected generator terminal "B" wire end, and connect positive ammeter lead to generator terminal "B".

2. Connect voltmeter positive lead to generator terminal "B" and negative lead to ground. See Fig. 2 . Start engine and increase engine speed to 2000 RPM. Both meters should read within specification. See GENERATOR REGULATED OUTPUT SPECIFICATIONS table. If voltage is more than specified, replace IC regulator. If voltage is less than specified, go to next step.

3. Locate small hole in back of generator. See Fig. 3 . It may be necessary to remove generator end cover to access hole in back of generator. Using a probe, ground (full field) generator terminal "F" to generator case. See Fig. 3 . If voltage is more than specified range, replace IC regulator. If voltage is less than specified range, repair or replace generator.

Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

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