Calling on Tony, TomMarcellino, et al... about GM alternator conversion...

Calling on Tony, TomMarcellino, et al... about GM alternator conversion...

Joined: May 17th, 2008, 5:05 am

July 21st, 2008, 1:42 am #1

Hi Tony, Tom, et al

I think I’m going to try this GM alternator conversion for ease of getting parts in the future. After reading the instructions in “Best of...”, I have 2 questions about the wiring and hardware:

1) Wiring: at the back of my current alternator (see picture) here:



I have 2 fat black wires connected to where the nut is. I tested the voltage there and it’s the same as at the battery. So, those 2 fat wires must be hot. At the square post to the right and below the nut is my red wire going to post 15 of the regulator (there’s another small black wire connected to the same connector here and I have no idea what that black wire is). Below that square post at the back of the alternator is another connector to connect a white wire going to post 67 of the regulator. What 2 wires should I use to connect to what posts of the GM alternator and which wire I can get rid of?

2) Mounting hardware: Can I keep the current bracket(s) on the car and use just nuts (thick and small as spacers to mount the GM alternator? They are just to align the pulley with those of the water pump and crank, correct?

Many thanks
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Pat Higginbotham
Pat Higginbotham

July 21st, 2008, 1:49 am #2

about this setup, I think he is offering some kind of retrofit kit for doing this and probably instructions on the wiring issues involved.
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DougESmith
DougESmith

July 21st, 2008, 10:38 am #3

Hi Tony, Tom, et al

I think I’m going to try this GM alternator conversion for ease of getting parts in the future. After reading the instructions in “Best of...”, I have 2 questions about the wiring and hardware:

1) Wiring: at the back of my current alternator (see picture) here:



I have 2 fat black wires connected to where the nut is. I tested the voltage there and it’s the same as at the battery. So, those 2 fat wires must be hot. At the square post to the right and below the nut is my red wire going to post 15 of the regulator (there’s another small black wire connected to the same connector here and I have no idea what that black wire is). Below that square post at the back of the alternator is another connector to connect a white wire going to post 67 of the regulator. What 2 wires should I use to connect to what posts of the GM alternator and which wire I can get rid of?

2) Mounting hardware: Can I keep the current bracket(s) on the car and use just nuts (thick and small as spacers to mount the GM alternator? They are just to align the pulley with those of the water pump and crank, correct?

Many thanks
mt
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Joined: January 25th, 2005, 3:33 pm

July 21st, 2008, 2:21 pm #4

Hi Tony, Tom, et al

I think I’m going to try this GM alternator conversion for ease of getting parts in the future. After reading the instructions in “Best of...”, I have 2 questions about the wiring and hardware:

1) Wiring: at the back of my current alternator (see picture) here:



I have 2 fat black wires connected to where the nut is. I tested the voltage there and it’s the same as at the battery. So, those 2 fat wires must be hot. At the square post to the right and below the nut is my red wire going to post 15 of the regulator (there’s another small black wire connected to the same connector here and I have no idea what that black wire is). Below that square post at the back of the alternator is another connector to connect a white wire going to post 67 of the regulator. What 2 wires should I use to connect to what posts of the GM alternator and which wire I can get rid of?

2) Mounting hardware: Can I keep the current bracket(s) on the car and use just nuts (thick and small as spacers to mount the GM alternator? They are just to align the pulley with those of the water pump and crank, correct?

Many thanks
http://www.network54.com/Forum/12159/me ... conversion


Get the new GM alternator and get a new plug for it as you see in my pictures. There will be an used wire or so from the existing wiring.

Mounting:
Remove your bottom mount from the block and compare to the picture. Also compare the bottom mounting hole of the new alternator to the old. I had to cut the mount back as shown in the picture. Then used a piece of tubing to line things up with the water pump bolt.

Dayton Tom
1974 X1/9

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Joined: December 21st, 2004, 3:04 am

July 22nd, 2008, 1:15 am #5

Hi Tony, Tom, et al

I think I’m going to try this GM alternator conversion for ease of getting parts in the future. After reading the instructions in “Best of...”, I have 2 questions about the wiring and hardware:

1) Wiring: at the back of my current alternator (see picture) here:



I have 2 fat black wires connected to where the nut is. I tested the voltage there and it’s the same as at the battery. So, those 2 fat wires must be hot. At the square post to the right and below the nut is my red wire going to post 15 of the regulator (there’s another small black wire connected to the same connector here and I have no idea what that black wire is). Below that square post at the back of the alternator is another connector to connect a white wire going to post 67 of the regulator. What 2 wires should I use to connect to what posts of the GM alternator and which wire I can get rid of?

2) Mounting hardware: Can I keep the current bracket(s) on the car and use just nuts (thick and small as spacers to mount the GM alternator? They are just to align the pulley with those of the water pump and crank, correct?

Many thanks
.... What Tom didn't say and is usually understood is... the old REGULATOR and all of its ASSOCIATED wiring can be tossed with the old alternator!

Then wire up what's left as Tom describes.  I know nothing about Matt's kit, but if its from Matt... its probably all inclusive, but shouldn't be any more or less complicated than what Tom describes.

Keep in touch...

Oh, and don't toss the old alternator... you may come across some parts or someone who can use componants...


My best,



Tony
Black Tooth and me... since 1983!
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Joined: May 17th, 2008, 5:05 am

July 22nd, 2008, 2:03 am #6

Hi Tony, Tom, et al

I think I’m going to try this GM alternator conversion for ease of getting parts in the future. After reading the instructions in “Best of...”, I have 2 questions about the wiring and hardware:

1) Wiring: at the back of my current alternator (see picture) here:



I have 2 fat black wires connected to where the nut is. I tested the voltage there and it’s the same as at the battery. So, those 2 fat wires must be hot. At the square post to the right and below the nut is my red wire going to post 15 of the regulator (there’s another small black wire connected to the same connector here and I have no idea what that black wire is). Below that square post at the back of the alternator is another connector to connect a white wire going to post 67 of the regulator. What 2 wires should I use to connect to what posts of the GM alternator and which wire I can get rid of?

2) Mounting hardware: Can I keep the current bracket(s) on the car and use just nuts (thick and small as spacers to mount the GM alternator? They are just to align the pulley with those of the water pump and crank, correct?

Many thanks
I will remove the alt to look at existing mounting hardware to see if I can do this mod or I'll have to go for the bolt on alt without any cutting and modification. Will let you know.
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