Stunning car -- except for the wiring which is a fire waiting to happen , cotton insulated wire hasnt been used for decades although to be fair to it we occasionally get old mains motors in for rewind that have just gone pop , the oldest was 1932 so the cotton did well , damp kills the cotton eventually . They really did care about things when it was built
Bought a used pushbutton for the starter. Somehow someone in the past managed to completely obliterate the old one.
It's got a nice "60 years of being pushed" patina. Matches the rest of the dash.
I was concerned that I would have to pull it apart to service the contacts but it tests very well.
Chipped paint notwithstanding, a significant improvement over just having a hole in the dash.
I turned my attention to the horn push, which wasn't working well after being rewired (before rewiring it didn't work at all).
The contact ring was pitted and corroded so I clamped it into my drill and cleaned it up. No great improvement, turns out the ground between the steering shaft and the column isn't very good, so I'll probably pull the upper bearing apart and take it to pieces. I simply oiled it and gently flushed it through but I'm guessing there's a fair bit of dirt and/or corrosion because I get a decent ground if I apply a little load to the steering wheel.
In this case it's the connection from the steering column to the rest of the car. The top bearing appears to be the ground path, rather than it going through the steering box. However, if I center the steering wheel, take the load off the steering worm I lose continuity.
So, I'm going to take the top bearing carrier out again, pull the actual race to bits and gently polish it and then retest for continuity, that should solve the problem. In my case the slip ring and contact pads are now in good shape.
Yup, it only takes a gentle touch, but the action is moderately positive. I can increase the spring pressure if needed, but the thing is designed so you can press the button in the center- adding the leverage of the ring means you don't have to push much at all.