Reply To: Installing new spark plug cables 1947 TD 20 Sea Horse

[aquasonic]

Lots of good information from Frank. Before soldering, clean the wire and coil buttons with acetone. Have minimal solder iron contact with the coil button and favor contact with the wire and solder. The wire should only be stripped back approximately 5/16″, any more is unnecessary exposed wire. Use rosin core solder, as Frank stated, with absolutely no flux. Flux, in this case, can actually harm the connection. Alligator vise grips, lightly used, are very helpful for holding the wire. Once the solder is liquefied, the hard part is having a steady hand to hold the wire in place for a few seconds until it hardens.

I had almost no experience soldering prior to attempting this on a TD-20, and I did ruin the first coil that I attempted. That was the learning curve.

Improvise-Adapt-Overcome