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Old Dec 8, 2007 | 12:06 PM
  #1  
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Default Quick Alternator question

I have a basic alternator which has three connections .
1 is the main threaded terminal ( battery )
2&3 are spade type connectors marked 1R and 2F
It has been running just fine but I needed to remove the two spade terminals for repair and now I cant remember which was connected to where .
I have a heavy lead from the main terminal which connects to one of the spades but which one ?
What happens if I have them reversed .
TIA
Mike .
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Old Dec 8, 2007 | 12:14 PM
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This is how my stock 37A GM unit (65-327/365 non A/C) unit is hooked up with factory harness.

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Old Dec 8, 2007 | 12:21 PM
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Thanks for the pic , unfortunately mine is different , it has no ground terminal and the two spade connectors go into the top of the casing not the back .
Although the car is a 61 I am running a later 350 motor and alternator , I believe it is a 45 Amp with internal regulator , unfortunately it was already installed when I got the car and as it appears to have been rewired by BUBBA cable colours are no longer correct , however as I said it has been working just fine so just need to know which way around these terminals connect .
Mike
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Old Dec 8, 2007 | 01:00 PM
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Does your alternator look like one of these?





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Old Dec 8, 2007 | 01:33 PM
  #5  
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Basically the same as the 12-00 position with terminals at the top , I have 1 wire from the loom to 1 spade and the thick wire from the batt terminal to the other , but which way around do they go ?
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Old Dec 8, 2007 | 06:30 PM
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#1 should be the small brown wire which goes to the idiot light and the #2 goes to the batt. term or red wire.
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Old Dec 9, 2007 | 09:56 AM
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Thanks to all for your help , all wired up and working just fine

Mike .
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