1980 Vette not charging battery
08-17-2014, 02:07 PM
#1
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Join Date: Aug 2014
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1980 Vette not charging battery
New 120 amp. 3-wire alt., new Optima red top, replaced "main" ground wire, old one corroded to pieces. On start the volt meter only goes to 13 V. and drops as load is added. Checked alt. with digital volt meter and the alt. reads 12.2 V. Any ideas?
08-19-2014, 04:08 AM
#3
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[ATTACH=CONFIG]72[/ATTACH]
See the attached photo - check for 12v using a test light or meter on terminal "2" as in the diagram. With the key switched to "on", there should be 12v to energize the field and allow the alternator to charge. With the key "off", there should not be voltage here (or it will drain your battery). Hope this helps...
JD
See the attached photo - check for 12v using a test light or meter on terminal "2" as in the diagram. With the key switched to "on", there should be 12v to energize the field and allow the alternator to charge. With the key "off", there should not be voltage here (or it will drain your battery). Hope this helps...
JD
