iron_giant
SILVER Star
keep in mind that this a 24volt system (hj60)- different numbers same principles. I have been getting very low (24 volt and sometimes less) charge at idle. The charging seems sporadic, sometimes charging at 28 volts at speed, and then suddenly at 26volts for a while. I don't get a decent charge until 1500-2000 rpms at best. Turn the headlights on and the charge drops a lot (at idle it drops to 24 volts), turn them off and half the time it stays down. What I have:
Rebuilt alternator (brusher,stator, bearing)
voltage regulator passed all resistance tests at the connectors and looks to be recently rebuilt or new.
2 new optima red tops (discharged a few times-recently trickle charged back up)
Voltmeter at "B" terminal of alternator (FSM) large hot wire on alternator and ground shows 39 volts at idle up to 100 at any kind of speed.
Ammeter between same terminal and corresponding wire reads 7 ohms.
I cant figure out where I am losing the charge. Initially thought regullator but it seems ok. It does sometimes charge the full 28 volts.
any help is appreciated,
david
Rebuilt alternator (brusher,stator, bearing)
voltage regulator passed all resistance tests at the connectors and looks to be recently rebuilt or new.
2 new optima red tops (discharged a few times-recently trickle charged back up)
Voltmeter at "B" terminal of alternator (FSM) large hot wire on alternator and ground shows 39 volts at idle up to 100 at any kind of speed.
Ammeter between same terminal and corresponding wire reads 7 ohms.
I cant figure out where I am losing the charge. Initially thought regullator but it seems ok. It does sometimes charge the full 28 volts.
any help is appreciated,
david