How To Solder Boat Trailer Wires

Joined Jul 22 2014 424 Posts.

How to solder boat trailer wires. Trailer wiring isnt all that complicated but most of us dont have electrical engineering degrees either. Push one wire all the way through the connector then overlap the bare ends of the wires to be connected do not twist them. Remove them and splice them using proper crimp-type butt splices or bare the wires place heat shring tubing over the wires join the splice solder and then shrink the tubing over the splice.

Disconnect the lights and remove the old harness noting how the wires were secured. Being NASA certified micro-miniature solderer in my Electronic Engineering Technician career you can use de-wicking tweezers to solder any wire and not have to worry about the residual rosin causing any problems. Use heat shrink tubing to protect the soldered connection.

This way they dont pull out and i never have an issue with corrosion in there. The best way to secure a ground to a trailer or any metal surface is to do exactly what you described. Feed wire through canister and shrink tube.

It will wick up the wires under the insulation and slowly eat the copper away. Cut off about 12 and strip and see if the wire is better looking. This is the best way to connect wires.

At worst try RA Rosin Active flux. This type of terminal barrel lends much better to crimp-then-solder than do pre-insulated terminals. First take the ends of the two wires and strip off about 14 of an inch.

Paste flux RMA - Rosin Mildly Active should eventually allow you to solder. Tap the end of the 6337 solder on top of the wire splice so the solder melts down into the wires. You crimp it with the correct tooling then apply solder to the very end of the wire and let some flow into the B or butt cheek part of the terminal.