1967 Corvette Battery Connections
01-20-2019, 09:37 AM
#1
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1967 Corvette Battery Connections
I recently had the battery replaced and it appears the battery was installed with reversed polarity. The black wire (grounded to the engine block) is connected to the positive terminal off the battery. Is this correct? It is the opposite of what I recall the previous battery was connected. The car started but overnight the battery completely died. Related question, if the terminals are disconnected, can the battery be recovered with a standard battery charger?
01-20-2019, 03:55 PM
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Welcome to the forum! Who installed the battery? It can’t be started with the cables reversed. If it died overnight, it’s has current being drawn from something. Dome light, glovebox light, bad alternator or voltage regulator with a short, etc. You may have left the key in the on position also. It might be able to take a charge but disconnect the cables.
Last edited by Geralds57; 01-20-2019 at 03:57 PM.
01-20-2019, 04:00 PM
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Le Mans Master
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There is no way the car started with the battery leads reversed. Please post a picture of your battery and we can better help you.
01-20-2019, 04:00 PM
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the original ring battery cables each one is a different size plus on the ring end it has embossed + or - on it. . but like said above if it went dead over night you have draw somewhere
01-20-2019, 04:01 PM
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Thank you. Curious. I checked my '67 assembly manual and it shows negative to ground, as apposed to the current installation positive to the engine block (ground?). Will disconnect and try charge.
01-20-2019, 04:23 PM
#6
Le Mans Master
Black wire is your Positive, Reddish brown is the Negative.
01-20-2019, 06:35 PM
#8
Team Owner
Check easy first. Glove box light, courtesy lights, brake lights. All will work with key off. Leaving key on will also run the battery down. So eliminate those first.
01-20-2019, 07:27 PM
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This cable confusion is what led me to put a new red cable for positive and black cable for negative about 40 years ago. 
Dennis
Dennis
01-20-2019, 08:38 PM
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Thank You. Good advice. 49 years ownership, '67 fastback (Ermine white/black interior), original transistor ignition (although updated), 327/350, 4-speed, all original including owner's manual, Protect-O (sp?) plate, radio manual, marketing brochure, receipts. Also, original 1967 VA License plates. Lots of fun to drive.
01-20-2019, 11:55 PM
#12
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01-21-2019, 07:10 AM
#13
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