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Printed Circuit Board/Exciter Replacement Issues

Old 07-17-2012, 07:52 PM
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Join Date: Jul 2012
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Just Joined - its a tad late but I used to make units to cure this for marine, agricultural and custom cars without pulley changes and other such mods .. details of it can be found here ..

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Old 08-23-2012, 05:00 AM
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Join Date: Aug 2012
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There is a wired connection between Automobile Alternator and batteries which it charges. when engine at idle state check battery voltages at wires from alternator.

Alternator Speed is 3 times the crankshaft speed ! Change in crankshaft speed changes Alternator RPM. Every Alternator has a table of voltage ratings which it generates at different RPM.

a ) - If Alternator is not getting required RPM to produce " __ Volts __ Current " then it would not charge the battery.

b ) - If Alternator is not getting excitation current (which is normally 1/10th of Alternator output current ) due to any discontinuity between Excitation link [ Battery - Switch - Indication - Alternator ] . it will not start and hence no charging.

c ) - If > Switch > Charging lamp goes ON > Automobile Ignites > Alternator Starts ( Now Indication Lamp should go OFF because Alternator is self exciting itself now and does not require excitation current further from battery )

d ) - If Automobile Engine is running and Alternator is also running and Indication Lamp is still ON then this means Alternator is not self exciting itself and all exciting current is still coming from battery. So this time Problem lies with Regulator. hence , no charging efficiency .

Troubleshoot Areas which should be checked :

1 - Silicon diode Rectifiers. ( It has to convert AC produces by Alternator to DC sent to battery)
2 - Indication Lamp ( if there is no other alternate route for excitation current " i.e adding a resistor so that continuity remains intact even lamp blows ")
3 - Regulator.

I hope a best solution to your Problem.

full turn-key assembly

Last edited by David23Kipp; 04-25-2013 at 03:41 PM.
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