Farm Equipment - Magneto Plug Wires?

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Magneto Plug Wires?

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=14627
Printed Date: 03 Feb 2025 at 4:58am
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Topic: Magneto Plug Wires?

Posted By: rasman57
Subject: Magneto Plug Wires?
Date Posted: 02 Jul 2010 at 11:43am

Seen many warnings about not using resistor type plug wires with the magneto, and several recommendations to use "solid core" wires. Are the non resistor wires consisting of several strands of conductor wire also bad for the magneto? Does solid core mean one larger diameter single wire? I understand the resistor issue but what is the deal with stranded centers? Thanks

Replies:

Posted By: wkpoor
Date Posted: 02 Jul 2010 at 12:01pm

Solid core is the multi stranded stuff. Thats what makes it flexible. Otherwise it would e like house wire. I buy it on the roll at NAPA. They sell all the stuff to make nice OEM appearance wires but you will need the proper Molex crimpers.

Posted By: Dave Everett
Date Posted: 02 Jul 2010 at 12:02pm

As long as the plug wires are metal cored with no reister caps all will be good..........

Posted By: DaveKamp
Date Posted: 02 Jul 2010 at 10:16pm

Confusion of terms commonly occurs here- 'modern' automotive wires are actually carbon-strand, and have resistance IN the wire. You don't want that... nor do you want resistance in the spark plugs. Resistance is employed to reduce radio frequency interference, however, adding resistance to ignition system means when the coil primary circuit is interrupted, voltage on the secondary side voltage has to rise farther, in order to cause the spark gap to be breached. Higher secondary voltage is hard on the mag.

I'll second the motion on buying the roll... think I got mine at NAPA too... seems to me it was about $50 for the roll.