Need help, Dart won't start...
Ok, ignoring the wiring modifications, you need to do "some stuff."
1...Got to MyMopar and download a factory service manual, AND the aftermarket wiring diagram on that site. Those diagrams are sometimes easier to follow, BUT sometimes leave out connectors and options
MyMopar - Mopar Forums & Information - MyMopar Tools/Reference
Closest one is for 71 Plymouth chassis:
http://www.mymopar.com/downloads/servicemanuals/1971_Plymouth_Chassis_Service_Manual.zip
Aftermarket diagram:
http://www.mymopar.com/downloads/1971/71DartA.JPG
http://www.mymopar.com/downloads/1971/71DartB.JPG
2...Read the "MAD" article which goes over some of the pitfalls of the power distribution wiring
Catalog
This diagram is from the MAD site and shows the basic power distribution:
This diagram can be useful if you are not familiar with the way these are wired, and gives you points to look up in the service manual. This is the FUNCTIONAL description, not electron flow I'm describing
From the battery power ends up at the "big stud" on the starter relay. This stud acts as a JUNCTION POINT.
From there the FUSE LINK feeds to a terminal in the BULKHEAD CONNECTOR. Through that terminal RED goes to the AMMETER. Through the AMMETER, to the BLACK which goes back out to the alternator
BUT THE BLACK, NOTICE!!!! has a "WELDED SPLICE!!" This splice is wrapped up in the harness, a few inches from the ammeter, under the dash. This branches out and feeds several places depending on year and model.
Feeds:
HEAD LIGHT SWITCH NOTICE THIS IS NOT FUSED!!
Ignition switch
Fuse panel hot buss
So already you have a few places you can "lose voltage" But I would start RIGHT AT the ignition switch. Find the main power into the switch, and compare that reading with the switch "in run" to the IGN1 wire
(Now it's time to read the shop manual......................)
Page 368 is the wiring index
Shows instrument panel, Valiant, standard cluster, page 8-160, 8-160, you end up on page 382 (8-161)
............and you end up with this...........
Ok, ignoring the wiring modifications, you need to do "some stuff."
1...Got to MyMopar and download a factory service manual, AND the aftermarket wiring diagram on that site. Those diagrams are sometimes easier to follow, BUT sometimes leave out connectors and options
MyMopar - Mopar Forums & Information - MyMopar Tools/Reference
Closest one is for 71 Plymouth chassis:
http://www.mymopar.com/downloads/servicemanuals/1971_Plymouth_Chassis_Service_Manual.zip
Aftermarket diagram:
http://www.mymopar.com/downloads/1971/71DartA.JPG
http://www.mymopar.com/downloads/1971/71DartB.JPG
2...Read the "MAD" article which goes over some of the pitfalls of the power distribution wiring
Catalog
This diagram is from the MAD site and shows the basic power distribution:
This diagram can be useful if you are not familiar with the way these are wired, and gives you points to look up in the service manual. This is the FUNCTIONAL description, not electron flow I'm describing
From the battery power ends up at the "big stud" on the starter relay. This stud acts as a JUNCTION POINT.
From there the FUSE LINK feeds to a terminal in the BULKHEAD CONNECTOR. Through that terminal RED goes to the AMMETER. Through the AMMETER, to the BLACK which goes back out to the alternator
BUT THE BLACK, NOTICE!!!! has a "WELDED SPLICE!!" This splice is wrapped up in the harness, a few inches from the ammeter, under the dash. This branches out and feeds several places depending on year and model.
Feeds:
HEAD LIGHT SWITCH NOTICE THIS IS NOT FUSED!!
Ignition switch
Fuse panel hot buss
So already you have a few places you can "lose voltage" But I would start RIGHT AT the ignition switch. Find the main power into the switch, and compare that reading with the switch "in run" to the IGN1 wire
(Now it's time to read the shop manual......................)
Page 368 is the wiring index
Shows instrument panel, Valiant, standard cluster, page 8-160, 8-160, you end up on page 382 (8-161)
............and you end up with this...........