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Member
Posts: 12
| I just put a 1977 318 with a 904 in my 59 Plymouth got everything mounted up and some what wired. How do I wire the alternator. Could I buy a amp gauge and hook it to that or is there a certain way it has to be done. |
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Expert
Posts: 3778
    
Location: NorCal |
A '77 will use the electronic regulator wiring on the right in the schematic below.
 (Alt wiring (Large).gif)
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 Alt wiring (Large).gif (22KB - 116 downloads)
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Member
Posts: 12
| Thanks this helps alot. Should I use the 77 solenoid or the stock one I'm having trouble hooking up the ignition. It turns over and runs but the starter stays on |
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Member
Posts: 12
| Is that the dummy light ammeter or a ammeter gauge. |
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Elite Veteran
Posts: 1102
Location: Hayward, Calif | Is this schematic also typical for the 1976 Chrys Corp cars and trucks ? Thanks, Jerry |
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Expert
Posts: 3778
Location: NorCal |
The schematic on the right is typical of all '70 and later Mopars. In the much later years (late eighties?) there was no separate voltage regulator, the VR was incorporated in the powertrain computer but it wired the same.
The new charging circuit shouldn't affect the starting circuit. |
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Elite Veteran
Posts: 1102
Location: Hayward, Calif | If I remember correctly, that 2nd wire on the ballast resister, ( on the coil side ) goes to the starting circuit and allows 12V to the coil during the starting cycle only. And the reason for 2 Field terminals on the Alt. are what and how can they be identified ?? I will be taking the eng/trans & alt out of a 76 Dodge Minnie Winnie camper and putting it in a 59 Dodge. I probably won't get to that until much later this yr. I am gathering information on all this as it comes along. Thanks, Jerry |
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Expert
Posts: 3778
Location: NorCal |
The two field spade terminals are the only physical difference between the '70 and later and the pre-'70.
On the earlier units, the regulator sends a variable voltage to the single field terminal and the alternator field is grounded internally. On the later system, battery voltage is applied to one field terminal (either one) and the second field terminal gets a variable ground from the regulator.
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Wiring a alternator
