- #1
John1397
- 190
- 18
My problem started when I took my alternator apart to grease bearings when I put it back to together dash light came on so took it apart seen wire to one of the brushes was broken soldier back together
it work for a short while the light was back on seen soldier had broke again so I changed the brush assemble now the light was still on so next I installed ammeter between alternator plus terminal and wire to battery with engine idling it puts out a few amps when speeding up engine to high RPM's alternator puts out maximum amps and with battery charger hooked on at same time it still seems to put out maximum amps no regulation and light is on.
Next I changed the voltage regulator from another vehicle same thing no change then I switched the alternator it self no change so this seems to me to simply rule out regulator or alternator so I checked the wires that go to field and regulator on the alternator the both conduct so they are not broken and they are not shorted together
I can't find no problem cause I don't know what to look for. I do not really understand which one regulates I always thought you short out the field this cause alternator to full charge but what does the regulator terminal do as they both go to regulator then brown wire seems to go to lamp but I can't find this on the diagram
but seems to be other things connected to this brown wire and I do not know if the lamp is always grounded or it always connected to positive but I do know that with the brown wire disconnected from regulator alternator will not charge .
I also do not know if the light is suppose to burn with the alternator charging full amps.
So what I have is a lamp that burns all the time, and an alternator that does not regulate. It just charges at full amps. This after changing both regulator and alternator and checking the wiring from the alternator to the regulator.
it work for a short while the light was back on seen soldier had broke again so I changed the brush assemble now the light was still on so next I installed ammeter between alternator plus terminal and wire to battery with engine idling it puts out a few amps when speeding up engine to high RPM's alternator puts out maximum amps and with battery charger hooked on at same time it still seems to put out maximum amps no regulation and light is on.
Next I changed the voltage regulator from another vehicle same thing no change then I switched the alternator it self no change so this seems to me to simply rule out regulator or alternator so I checked the wires that go to field and regulator on the alternator the both conduct so they are not broken and they are not shorted together
I can't find no problem cause I don't know what to look for. I do not really understand which one regulates I always thought you short out the field this cause alternator to full charge but what does the regulator terminal do as they both go to regulator then brown wire seems to go to lamp but I can't find this on the diagram
but seems to be other things connected to this brown wire and I do not know if the lamp is always grounded or it always connected to positive but I do know that with the brown wire disconnected from regulator alternator will not charge .
I also do not know if the light is suppose to burn with the alternator charging full amps.
So what I have is a lamp that burns all the time, and an alternator that does not regulate. It just charges at full amps. This after changing both regulator and alternator and checking the wiring from the alternator to the regulator.
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