I miswired a new set of field coils by attaching one end to ground and the other to the third brush. No output. Then I checked a diagram showing the field connected to the output terminal & third brish, and 'vola', it works.
Thanks 'Greybeard' for your reply. I felt kind of stupid asking the question, but see I'm not the only one to have had the problem. Sorry abouit the broken windshield.
I'll try the sandpaper - but it seems there must be a correct fix for this.
I see that some Model A Parts suppliers offer...
The windshield on my 31 A Deluxe roadster pivot won't lock. The wind blows it past the cowl seals. If I try to tighten the wing nuts all the way, the top won't go onto the top of the stancheons.
Any ideas of what's wrong?