alternator
Postmaster
Joined: Apr 2008
Posts: 4,802
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Well what's wrong with it now? If it's a 1G alt then you got one two-wire plug on the top or the side of it, and the large charge cable that bolts up to the stud on the back... Does that help you any? For more details, refer to this wiring diagram:
Methanoholic
Joined: Mar 2009
Posts: 6,442
Likes: 8
From: Maine (NorCal Native)
That diagram is incorrect for the 85-86 ...
Alternator:
Fld = F on Regulator
Stat = Not used
Bat = Positive Terminal on Battery (battery side of the Glow Plug Relay, Or starter relay)
Grnd = To Block (Ensure Grounds are, Block to Chassis, Block to Cab)
Regulator:
F = Fld on Alternator
S = Ignition keyon (keyon only, Not keyacc or keystart))
A = Has TWO wires, 1) Bat on Alternator, 2) Static Suppression condenser
I = Not used
Ensure Regulator is grounded to chassis (Chassis is grounded to Block, Block is grounded to Cab)
-Enjoy
fh : )_~
Alternator:
Fld = F on Regulator
Stat = Not used
Bat = Positive Terminal on Battery (battery side of the Glow Plug Relay, Or starter relay)
Grnd = To Block (Ensure Grounds are, Block to Chassis, Block to Cab)
Regulator:
F = Fld on Alternator
S = Ignition keyon (keyon only, Not keyacc or keystart))
A = Has TWO wires, 1) Bat on Alternator, 2) Static Suppression condenser
I = Not used
Ensure Regulator is grounded to chassis (Chassis is grounded to Block, Block is grounded to Cab)
-Enjoy
fh : )_~
Methanoholic
Joined: Mar 2009
Posts: 6,442
Likes: 8
From: Maine (NorCal Native)
The hookups I posted are 86 Ford Factory hookups!
The I terminal is for vehicles with Idiot lights and is not used on vehicles with gages.
I forgot to mention, the A terminal of the regulator has TWO wires ... 1 goes to the BAT terminal on the Alternator, the other goes to the static suppression condenser.
I have edited my post to add said info.
-Enjoy
fh : )_~
The I terminal is for vehicles with Idiot lights and is not used on vehicles with gages.
I forgot to mention, the A terminal of the regulator has TWO wires ... 1 goes to the BAT terminal on the Alternator, the other goes to the static suppression condenser.
I have edited my post to add said info.
-Enjoy
fh : )_~
Methanoholic
Joined: Mar 2009
Posts: 6,442
Likes: 8
From: Maine (NorCal Native)
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Elder User
Joined: Feb 2010
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I need pictures....I'm to stupid to know what all this means
And it would be hookup as a 6.9 (7.3 engine 6.9 parts)
And it would be hookup as a 6.9 (7.3 engine 6.9 parts)
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Methanoholic
Joined: Mar 2009
Posts: 6,442
Likes: 8
From: Maine (NorCal Native)
That doesn't make you stupid!
The acronyms used are marked on the devices. ie: BAT, GRND F, S, A, I ...
On the regulator it's marked on the plastic clip, the alternator is marked on the rear.
It's impossible to trace wires with pictures ... Show you the connections yes, but are you working with a proper harness ??
I don't have a picture of an installed harness, I have them out of both my trucks laying on the floor getting re-worked, if you need a image of the harness on the floor I can do that!
-Enjoy
fh : )_~
The acronyms used are marked on the devices. ie: BAT, GRND F, S, A, I ...
On the regulator it's marked on the plastic clip, the alternator is marked on the rear.
It's impossible to trace wires with pictures ... Show you the connections yes, but are you working with a proper harness ??
I don't have a picture of an installed harness, I have them out of both my trucks laying on the floor getting re-worked, if you need a image of the harness on the floor I can do that!
-Enjoy
fh : )_~
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Elder User
Joined: Feb 2010
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All I see that even looks like it goes to the alternator is a red wire with a round metal piece on the end of it.
Looks like there should be a plug that goes to it but I don't see any cut wires like one was taken off.
Looks like there should be a plug that goes to it but I don't see any cut wires like one was taken off.
Post Fiend
Joined: Nov 2003
Posts: 21,285
Likes: 15
From: Nutter Fort, WV
Ford Fuel Injection Alternator Files
Here are common wiring diagrams.
Still looking for a picture of the alternator plug and terminal ID>
Here are common wiring diagrams.
Still looking for a picture of the alternator plug and terminal ID>
Methanoholic
Joined: Mar 2009
Posts: 6,442
Likes: 8
From: Maine (NorCal Native)
To start with, there should be a small wire that runs from the Positive battery terminal on the battery to a large terminal on either the Starter Relay or the Glow Plug relay ... This is where the "BAT" wire from the alternator should hook up.
86 Alternator harness on the floor!
Wires from left to right ...
Plugs into cab harness, not sure of all the wires ...
BAT wire from Alternator, Black/Orange, Goes where ever the small wire on the positive battery post/terminal goes mentioned above.
Cab power plug.
Regulator Plug:
Alternator FLD plug, Orange/Blue, plugs into Alternator
BAT wire, Black/Orange, Hooks to the BAT terminal stud on the Alternator.
Hope this helps!
-Enjoy
fh : )_~
86 Alternator harness on the floor!
Wires from left to right ...
Plugs into cab harness, not sure of all the wires ...
BAT wire from Alternator, Black/Orange, Goes where ever the small wire on the positive battery post/terminal goes mentioned above.
Cab power plug.
Regulator Plug:
- F = Orange/Blue
- S = Green/Red
- A = Yellow
- I = Unused
Alternator FLD plug, Orange/Blue, plugs into Alternator
BAT wire, Black/Orange, Hooks to the BAT terminal stud on the Alternator.
Hope this helps!
-Enjoy
fh : )_~
Methanoholic
Joined: Mar 2009
Posts: 6,442
Likes: 8
From: Maine (NorCal Native)
I guess I could add ...
Showing are FOUR terminals ...
On the left is the GRND lug.
In the middle is the FLD & STA Plug
If you look on the back of the alternator they are listed.
-Enjoy
fh : )_~
Showing are FOUR terminals ...
On the left is the GRND lug.
In the middle is the FLD & STA Plug
- Closest to REAR of alternator (Up in this image) is the STA terminal (unused)
- Closest to the FRONT of the alternator (down in this image) is the FLD terminal.
If you look on the back of the alternator they are listed.
-Enjoy
fh : )_~
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Elder User
Joined: Feb 2010
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Thanks for the pictures!
So it looks like all I'm missing is the plug.....I'll have to go down and search for it.
I'm trying to get everything finished up so in the next few weeks I can maybe start her up.
Thanks for your help guys!
So it looks like all I'm missing is the plug.....I'll have to go down and search for it.
I'm trying to get everything finished up so in the next few weeks I can maybe start her up.
Thanks for your help guys!
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