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1969 won’t start

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Old Jun 30, 2021 | 05:02 PM
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Default 1969 won’t start

Readers I have a 1969 corvette with the L46 350 engine. Recently I took the car for a short drive and after cutting it off, when I went to restart it I got nothing, the car appeared to not be getting any electrical power as the radio nor courtesy lights would come on. Tried boosting with another vehicle and still no power. Took the battery and had it checked, it was only 9 months old and they swapped it for a new one and upon installation it actually started the car. Just went to pull it out of the garage and it started just fine, but when I turned it off I got the same symptoms as before. I checked the battery cables and they appear tight and not corroded. Sorry for the long post but any suggestions would be greatly appreciated.
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Old Jun 30, 2021 | 05:08 PM
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Is your charging system working? With the engine running, you should measure 13.5 to 14.5 volts at the battery.
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Old Jun 30, 2021 | 05:38 PM
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Originally Posted by Mrvettenick
Is your charging system working? With the engine running, you should measure 13.5 to 14.5 volts at the battery.
I believe it was working fine but unfortunately I can’t get it start, no courtesy lights to come on either and the in-line fuse looks good.
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Old Jun 30, 2021 | 05:47 PM
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You are in a bad spot because you need to get this thing up in the air, somehow.
The big GRD cable off of the batt NEG side goes thru the battery box floor and bolts to the frame underneath.
It gets the worst beating of any wire on the entire car with greasy fluids, road grime and exhaust heat.

Start there.
Another one near the starter.
Then a voltage meter on the red lug of the ALT.

Last edited by HeadsU.P.; Jun 30, 2021 at 05:48 PM.
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Old Jun 30, 2021 | 05:50 PM
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Thanks I will try replacing the cables and see if that helps.
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Old Jun 30, 2021 | 05:57 PM
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May not have to replace anything. Just a thorough cleaning down to bare metal. Frame, bolt, washer and cable eyelet.
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Old Jun 30, 2021 | 05:59 PM
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I will give it a shot before spending any unnecessary money, thanks again.
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Old Jun 30, 2021 | 06:23 PM
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Do you have a volt meter?
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Old Jun 30, 2021 | 06:49 PM
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Loosen the battery cables and watch the interior light as you do to see if it starts to flicker on indicating a poor connection.
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