Done it heaps of times Ruairidh!
Back in the dark ages, "carbon" HT leads were available as a universal kit in this country. The HT lead was supplied by the foot, the distributor end split brass washers were secured to the lead by a tiny brass screw through their center screwed axially into the "carbon" core of the lead. The other (spark plug) end had the core bared and folded back over the length of the lead before crimping the terminal, making sure the core was on the solid side of the crimping i.e. not by the split- at least, this was the official method. It was considered better practice to make up a small UÂ from either a piece of 1/16 brazing wire or a paper clip, push one leg of the U up into the center core, position the other leg over the insulation along the axis of the wire and crimp as previous.
Edit: The screws were threaded all the way to the head like woodworkers 'hinge screws'-I would think a modelers' supplier would have them.
Back in the dark ages, "carbon" HT leads were available as a universal kit in this country. The HT lead was supplied by the foot, the distributor end split brass washers were secured to the lead by a tiny brass screw through their center screwed axially into the "carbon" core of the lead. The other (spark plug) end had the core bared and folded back over the length of the lead before crimping the terminal, making sure the core was on the solid side of the crimping i.e. not by the split- at least, this was the official method. It was considered better practice to make up a small UÂ from either a piece of 1/16 brazing wire or a paper clip, push one leg of the U up into the center core, position the other leg over the insulation along the axis of the wire and crimp as previous.
Edit: The screws were threaded all the way to the head like woodworkers 'hinge screws'-I would think a modelers' supplier would have them.