hi, had problem with my dodge. its a wc42 and was already converted to 12v with the big dynamo [ by the army?] when i got it off a farmer in scotland in 1991. ive rebuilt the dodge completely including 12v regulator,12v starter and new custom made cotton covered , colour coded wiring loom from the states. . its always started o.k. but last time i went to it it would not start.no spark at points. eventually after changing plugs, points and condensor i found the problem was the lead from coil [ 12v autolite] to dissy. one of the terminals had failed and parted inside the sleeve. the wire was a brown colour not shiny copper colour. resistance ? must have been on its way out for a while!. i have bought modern pvc sleeved 8 amp wire as a temporary solution and crimped the terminals on. my question is can anyone tell me in laymans terms is 8 amp wire o.k. or should it be higher or lower ampage for this application. is it possible to use too heavy a guage wire ,or would it work as long as it can carry the ampage requiered ?. in other words is heavy wire ok even on applications that only need a lighter amp wire. is there any simple way i can check out the terminals on the rest of the harness ? because someone has implied to me that the whole harness could be suspect!!!. it is a harness made to carry the ampege for a 6v volt set up in case i ever converted a to 6v system at some point in the future. any advice would be appreciated. cheers, mike