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SORN
by OldSkrote - 31/07/25 02:07 PM
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Aug 24th, 2023
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Joined: Jan 2016
Posts: 121
L - Learner Plates On
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OP
L - Learner Plates On
Joined: Jan 2016
Posts: 121 |
Does anyone know what gauge is the positive battery cable on a 12 volt 1965 plus4
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Joined: Aug 2015
Posts: 1,578 Likes: 105
Talk Morgan Enthusiast
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Talk Morgan Enthusiast
Joined: Aug 2015
Posts: 1,578 Likes: 105 |
Depends where the battery is located. If a four seater with the battery under the bonnet and only a relatively short cable run to the solenoid you could probably get away with 16mm2
If its a 2 str with a battery down the back and a long cable run, I'd go for 25 mm2 to minimise voltage drop.
Having said that, I've wired my Plus 4 4 str with 25mm2 but that's because I happened to have a length of cable spare.
I also used proper crimped on terminals and bought the special crimping tool to put them on, think it was less than 10 quid and produces a nice strong crimp. Use the proper insulating boots as well for a nice neat job.
Arwyn
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Joined: Jan 2013
Posts: 1,148 Likes: 18
Has a lot to Say!
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Has a lot to Say!
Joined: Jan 2013
Posts: 1,148 Likes: 18 |
The current is needed for the starter motor ensure you have a good earth. Modern starter motors have a gear reduction and because of this draw half the current but give twice the turning torque!
As Arwyn says its all about the current draw and volt drop
Morgans 1934 MX, 1947 Series 1, 1956 +4 TR4, 2000 +4 T16
Triumph Herald 1969 13/60
Morris 1970
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Joined: Jan 2016
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L - Learner Plates On
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L - Learner Plates On
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