Plug Wires

Heyseed · Jul 4, 2013

Tuning the IH and bought a kit off YT. It came with cut to fit plug wires. Been about 25 years since I used any. How do you trim the ends. They came with the center core wire about 3/4 inch stripped. When I crimp on the ends that go over the plug should that wire touch the crimp or the plug head or both? I feel like an idiot, this should be simple.
Thanks, also any tips on getting the points on the high spot for setting the gap? This is a 1967 Gas IH 424 Four cylinder.

Paul from MI · Jul 4, 2013

If you can, solder the wire to the fitting that goes into the distributor or magneto. Just folding the bare wire over the end of the insulation will also work, but I like soldering better. Best way to get the points open on top of the cam is to turn the engine backwards, otherwise the impulse coupling will rotate the mag too far.

MarkB_MI · Jul 4, 2013

After cutting to length, strip the end 3/4" just like it was originally. Fold the conductor around the outside of the insulation, then crimp the terminal to the insulation so the conductor is squeezed between the terminal and insulation. If you pull the insulator back on the end that came finished, you can see how it is done.

If you don't have any luck "bumping" the starter, you can put a wrench on the front pulley and turn the engine over by hand.

John B. · Jul 5, 2013

If you have a magneto make sure those plug wires are "Wire" and not carbon fiber "TVRS" wires.

Carbon Fiber wires will not work with a magneto.

Carbon Fiber (TVRS-Television, Radio Suppressor) wires will work only at an idle when used on a magneto then when the magneto rpm's speed up they will cause intermittent spark.

I've seen it many times on a magneto test bench.

rustyfarmall · Jul 5, 2013

Paul, I agree. Folding the wire back over the insulation does work, but soldering is absolutely the best way.

Heyseed · Jul 5, 2013

Thanks guys, That was what I thought, just didn't want to cut this nice new set too short.
I will try the wrench on the pulley thing. Tried moving it in gear by hand, but have it in a spot where I can't get enough leverage. I prefer working alone but some days it would be nice to have a helper.

Heyseed · Jul 6, 2013

Thanks again everyone. These were carbon wires so soldering was not an option. Trimmed them and used a cable crimping tool. When I finally got the points gapped correctly the thing runs great. Lots more power.

Plug Wires

Heyseed

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Paul from MI

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MarkB_MI

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John B.

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rustyfarmall

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Heyseed

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Heyseed

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