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7040 Alternator

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Red Bank View Drop Down
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Joined: 18 Apr 2018
Location: Germanton NC
Points: 1051
Post Options Post Options   Thanks (0) Thanks(0)   Quote Red Bank Quote  Post ReplyReply Direct Link To This Post Topic: 7040 Alternator
    Posted: 08 May 2023 at 9:17pm
Looking for an alternator for a 7040. Has a Wilson 90-01-3081 on it currently(Delco Remy style). Does anyone know where I could possibly get a one wire alternator with the tach terminal on it? Thanks in advance.
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steve(ill) View Drop Down
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Joined: 11 Sep 2009
Location: illinois
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Post Options Post Options   Thanks (0) Thanks(0)   Quote steve(ill) Quote  Post ReplyReply Direct Link To This Post Posted: 08 May 2023 at 9:33pm
something like this ? ............ pulley diameter is important to get right rpm indication.


Like them all, but love the "B"s.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Red Bank Quote  Post ReplyReply Direct Link To This Post Posted: 08 May 2023 at 9:40pm
Steve, yes that may work , thanks for finding that I looked at their website and couldn’t find it, I will have to use my old pulley probably because it’s a two groove pulley.
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ryan(IN) View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ryan(IN) Quote  Post ReplyReply Direct Link To This Post Posted: 09 May 2023 at 5:54am
Why do you want a 1 wire?
ryan
1984 8070 FWA,1979 7060,1975 7040,1971 190,1960 D-17D,1957 D-14, 196? D-19G, 1975 5040,1971? 160,1994 R62
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Gary Burnett View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Gary Burnett Quote  Post ReplyReply Direct Link To This Post Posted: 09 May 2023 at 6:43am
Originally posted by Red Bank Red Bank wrote:

Steve, yes that may work , thanks for finding that I looked at their website and couldn’t find it, I will have to use my old pulley probably because it’s a two groove pulley.


DB has the alternators with the double pulley,very good company BTW.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Red Bank Quote  Post ReplyReply Direct Link To This Post Posted: 09 May 2023 at 7:15am
I want a one wire because right now the keyed ignition wire going to the two wire plug on the alternator does not have power on it at all, so what I have been doing is cranking tractor and then jumping across the two terminal plug to excite the alternator. I could run a new wire from the ignition switch to the alternator but one wire alternator kinda makes everything easy
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Steve in NJ View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Steve in NJ Quote  Post ReplyReply Direct Link To This Post Posted: 09 May 2023 at 8:50am
Take a visit to our Website and read about 1 wire Alts vs 3 wire Alts. There's a lot more information there than "easy".  Especially on larger Tractors that have more current usage up at the dash...
If you go down the header to "More" a drop down window appears. You want to click on more Technical Info. Roll down to the Alternator information. Makes for a good read.
Steve@B&B
bb-customcircuits.com
39'RC, 43'WC, 48'B, 49'G, 50'WF, 65 Big 10, 67'B-110, 75'716H, 2-620's, & a Motorhead wife
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