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Generator Load Test

NOTE: The following instructions refer to the use of suitable test equipment using a carbon pile rheostat.
NOTE: Also see CHARGING CIRCUIT RESISTANCE TEST  .
  1. Connect test equipment referring to the manufacturer's instructions.
  2. Start engine and run at 3,000 RPM without accessory load.
  3. Rotate the carbon pile load control to achieve the greatest output (amps) without allowing voltage to fall below 12.0 volts. A reading of 80 amps, minus 10 percent to allow for EFI and ignition loss, should be obtained.
  4. Run engine at 3,000 RPM, switch selector to regulator test, read voltmeter. A reading of 13.6-14.4 volts should be obtained.
  5. Switch selector to diode/stator test, switch on headlamps to load alternator. Raise engine speed to 3,000 RPM, read voltmeter. The needle must be within the OK range.
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