1981 302 wiring
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1981 302 wiring
Hello to everyone. I am a new member who has a 1981 F100 W/a 302. It has a new alternator and battery, but after driving the truck a short distance, it won't turn over to re-start. I checked the alternator and on one side there is a wire just dangling. The wiring looks like it was done with telephone wiring or something. Could someone please explain where the alternator wires are supposed to run to/from the alternator? Also if anyone has a wiring diagram they could share with me, it would be greatly appreciated. Thanks for your help.
Shane
Shane
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Joined: Feb 2005
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From: Spokane, WA
Big thick fat yellow one goes to the Battery (BAT) post on the alternator.
Black (I believe it is, been a while), goes to the Ground Post (GRD)
Red (on mine), goes to the Field (FLD) post.
Sometimes you have a green wire that leads to the electic choke...this would attach to the Stator (STA) post.
This is the best I can do from memory...hope it helps you! Most these wires are around 16 guage, the the big battery wire is 10 or 8, so it is easy to tell. Anything like telephone wire is a jimmy rig!
Kenny
Black (I believe it is, been a while), goes to the Ground Post (GRD)
Red (on mine), goes to the Field (FLD) post.
Sometimes you have a green wire that leads to the electic choke...this would attach to the Stator (STA) post.
This is the best I can do from memory...hope it helps you! Most these wires are around 16 guage, the the big battery wire is 10 or 8, so it is easy to tell. Anything like telephone wire is a jimmy rig!
Kenny
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From: Connecticut
I have several differnt wiring diagrams in my gallery.If that helps for 80 to 86. You might need Image Resizer from microsoft to get a better look after you save them. http://www.microsoft.com/windowsxp/d...powertoys.mspx
I got it and use it. Thanks to one of our great members!
I got it and use it. Thanks to one of our great members!
Fleet Owner
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From: Easton,Ks
Originally Posted by espplyr
Hello to everyone. I am a new member who has a 1981 F100 W/a 302. It has a new alternator and battery, but after driving the truck a short distance, it won't turn over to re-start. I checked the alternator and on one side there is a wire just dangling. The wiring looks like it was done with telephone wiring or something. Could someone please explain where the alternator wires are supposed to run to/from the alternator? Also if anyone has a wiring diagram they could share with me, it would be greatly appreciated. Thanks for your help.
Shane
Shane
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Joined: Dec 2006
Posts: 6
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well i am having the same problem but it looks like my wiring is all right but it is not keeping a charge i don't know why it is doing that. my amp guage is telling me that it is only charging half way up and it runs off of my battery only i put all new stuff on it including the ( alternator, battery, cables, voltage regulator, ignition, ignition switch, starter ) and i have checked all the wires and condencers in the engine compartment. do i need to check the wires up in the dash to see if one in looose. i need a diagram if anyone has one they can send me please help its my only vehicle and i cant drive it lol well please help thanks very much.
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