from a previous Post by texasSlick » Thu Jul 03, 2014 2:57 pm
While making a splice into the 50 year old wiring on my Atlas, I skinned the old wiring to find dull brown, oxidized, copper under the insulation. A crimp connection would have high resistance, and a solder connection would be near impossible.
I removed the oxidation by fanning out the wire strands, and dipping the wire ends in cartridge brass cleaner, producing shiny copper in minutes. The active ingredient is citric acid. You can make your own by mixing 1 cup water, 1/2 cup vinegar, 1/4 cup lemon juice, and 1/16 cup salt. Slick
Re; “The active ingredient is citric acid.”
I put some blackest wire core in some Jenolite, knowing it contains citric acid, which brought back the copper colour considering the age of the wire.
Not that I endorse doing this, it would only be a stop / gap method considering that the rest of the wire in the insulation would be black and giving a HUGE electrical resistance ( some drop the voltage by as much as 50% on a 6 volt wiring harness I once worked on.
The only remedy is to replace the offending wire with new-they are cheap :!: )
http://www.amazon.co.uk/Jenolite-JRR045 ... B002SLHLYM
While making a splice into the 50 year old wiring on my Atlas, I skinned the old wiring to find dull brown, oxidized, copper under the insulation. A crimp connection would have high resistance, and a solder connection would be near impossible.
I removed the oxidation by fanning out the wire strands, and dipping the wire ends in cartridge brass cleaner, producing shiny copper in minutes. The active ingredient is citric acid. You can make your own by mixing 1 cup water, 1/2 cup vinegar, 1/4 cup lemon juice, and 1/16 cup salt. Slick
Re; “The active ingredient is citric acid.”
I put some blackest wire core in some Jenolite, knowing it contains citric acid, which brought back the copper colour considering the age of the wire.
Not that I endorse doing this, it would only be a stop / gap method considering that the rest of the wire in the insulation would be black and giving a HUGE electrical resistance ( some drop the voltage by as much as 50% on a 6 volt wiring harness I once worked on.
The only remedy is to replace the offending wire with new-they are cheap :!: )
http://www.amazon.co.uk/Jenolite-JRR045 ... B002SLHLYM