In Reply to: making your own spark plug wires posted by Steve Hockett on July 26, 2017 at 18:44:58:
If you have more than one tractor or want to have a spare set handy, buy a set of solid core wires for the flathead V8. The V8 sets are usually only a few bucks more than the same 4 cylinder set, and you get enough stuff to do at least two tractor engines. Most of the sets I buy have the distributor end already crimped with a straight boot. Make sure you get angled ends for the spark plugs. Rajah screw-on angled ends are the best but expensive (unless you can get them from a boiler parts supplier). Buying a complete set of wires and terminals will help make sure the terminals are the correct ones for the wire diameter.
Lay the wires on the engine starting with the shortest wire in the set. See how far the shortest will reach. The original route is usually the best for plug wires. Don't leave wires dangling down the side of the engine. Cut excess length off each wire leaving a couple inches slack. Wires shouldn't be strung like banjo strings. If you are using rubber boots slide them on each wire now. Strip layers of insulation to expose about 3/4" of the core conductor. If the core looks like black fibers stop, go get a set of solid core wires, start over. Fold back the stranded solid core wire so it will be laid under the metal terminal end. Most of the metal terminal ends will then just fold and crimp around the wire. A good pair of crimping pliers isn't essential, but will do a good job much faster.