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04-18-2024, 12:00 PM | #1 |
Member
Join Date: Dec 2011
Location: Calgary, Alberta, Canada
Posts: 30
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Positive ground tach
I have a really dumb question but are going to ask it anyway.
Recently had a Sun D-1 tach converted by Williamson to not require the sending unit. My Model A is the first positive ground car I've owned and don't know where to connect the "trigger" wire for the tach. I don't want to risk screwing the tach up, can someone please advise me where to connect the trigger wire from the tach. I appreciate everyone's patience with my questions. You're all really a big help. |
04-18-2024, 12:37 PM | #2 |
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Join Date: May 2010
Location: Southern California
Posts: 3,134
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Re: Positive ground tach
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04-18-2024, 03:44 PM | #3 |
Senior Member
Join Date: May 2010
Location: Oregon
Posts: 1,376
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Re: Positive ground tach
So a tach or tach-dwell meter attaches and works regardless of whether the ignition is positive or negative ground?
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04-18-2024, 04:22 PM | #4 |
Senior Member
Join Date: Mar 2012
Location: Ohio
Posts: 1,987
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Re: Positive ground tach
Whomever converted it for you, perhaps you should send them an e-mail, and ask them? A photo of which wires might help. I hate finger pointing contests, if ya know what I mean.
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04-19-2024, 09:45 AM | #5 |
Senior Member
Join Date: May 2010
Location: Plano, Texas
Posts: 858
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Re: Positive ground tach
The trigger wire should attach to the points side of the coil.
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04-20-2024, 06:07 PM | #6 |
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Join Date: Jan 2023
Location: Grass Valley, Ca
Posts: 249
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Re: Positive ground tach
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Stickshift 1915 Model T touring 1931 Ford Model AA Flatbed |
04-21-2024, 10:18 AM | #7 |
Senior Member
Join Date: May 2010
Location: Southern Maine
Posts: 1,500
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Re: Positive ground tach
God bless analog.
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