How To Solder Auto Wiring
You can touch the solder to the wires not to the tip of the iron periodically to see if its hot enough.
How to solder auto wiring. Once cool inspect the union to ensure proper penetration of the solder. Its the act of using heat via a soldering iron and a fusible metal the solder to create the electrical connection. Use Rosin Core Solder when soldering wires the flux deoxidizes and allows solder to penetrate into the wire strands.
When buying solder wire remember not to be cheap. Twist the ends together on the other splice area. If your re-wiring your car or truck then this is a MUST Video For YOU.
Apply the solder directly to the joined wires rather than the tip. You also have to route and support your wires in such a way that they dont flop around. Place the soldering iron underneath the wires and apply the solder from the top.
These I then insert into GM Weatherpack fittings with a bit of dielectric grease on the pins. Touch the tip of the soldering iron to the wires and keep it there. My old soldering iron.
Tap the end of the 6337 solder on top of the wire splice so the solder melts down into the wires. With the soldering done it is time to give your 3-way wire joint a final inspection. As the copper wire heats up the solder will be drawn into the copper strands.
Other wires I just crimp and cover with heat shrink if possible. When your soldering iron is all prepped and ready to go its time to solder the wires. The solder should be fed into the cool side away from the heat which allows it to be drawn in smoothly by the heat transfer through the wires.