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alternator 7045
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rick ky View Drop Down
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Joined: 02 Oct 2009
Location: georgetown ky
Points: 106 		Post Options Post Options   Thanks (0) Thanks(0)   Quote rick ky Quote  Post ReplyReply Direct Link To This Post Topic: alternator 7045
    Posted: 11 May 2023 at 1:11am
looking for wiring diagram for going from niehoff to delco remy alternator. niehoff has 3 wires
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steve(ill) View Drop Down
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Joined: 11 Sep 2009
Location: illinois
Points: 85458 		Post Options Post Options   Thanks (0) Thanks(0)   Quote steve(ill) Quote  Post ReplyReply Direct Link To This Post Posted: 11 May 2023 at 8:44am
https://www.allischalmers.com/forum/7060-alternator_topic165085.html


you can get a Delco without the excitation terminal, but it is better to get the 4 wire version and add the excitation wire..
Like them all, but love the "B"s.
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steve(ill) View Drop Down
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Joined: 11 Sep 2009
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Points: 85458 		Post Options Post Options   Thanks (0) Thanks(0)   Quote steve(ill) Quote  Post ReplyReply Direct Link To This Post Posted: 11 May 2023 at 8:45am
good discussion........
Like them all, but love the "B"s.
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rick ky View Drop Down
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Points: 106 		Post Options Post Options   Thanks (0) Thanks(0)   Quote rick ky Quote  Post ReplyReply Direct Link To This Post Posted: 11 May 2023 at 9:13am
Have 2 wires one green/black stripe, one brown, one going to battery. Was told to connect a fourth wire from battery post on alternator to open spade on alternator. This is one on bottom and right of spade on left that doesn't have a spade above it
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steve(ill) View Drop Down
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Joined: 11 Sep 2009
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Points: 85458 		Post Options Post Options   Thanks (0) Thanks(0)   Quote steve(ill) Quote  Post ReplyReply Direct Link To This Post Posted: 11 May 2023 at 5:03pm
the BIG orange wire goes to the LUG with the nut.. that is the main charge wire... I think the BROWN is the TACH wire that would be the EXTRA terminal as compared to a normal 10SI Delco... The GREEN wire goes to the dash light, that is the excitation wire, or #1 (R) on the two spade block ( shown below)... the #2 (F) is  normally jumpered to the BIG LUG to get 12 volts input ( in the photo below)...

Generic drawing of DELCO 10SI ( without the tach wire)..
Like them all, but love the "B"s.
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steve(ill) View Drop Down
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Joined: 11 Sep 2009
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Points: 85458 		Post Options Post Options   Thanks (0) Thanks(0)   Quote steve(ill) Quote  Post ReplyReply Direct Link To This Post Posted: 11 May 2023 at 5:11pm
something like this.... is your TACH terminal above the battery, to the LEFT of the 2 prong plug ?
Like them all, but love the "B"s.
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