Relooked at the points again, sprayed with brake cleaner, blown with the air line and dragged a card through when closed. I now have a spark on #1
Can only think that by swapping over the components yesterday, my greasy hands, or the feeler guage contaminated the points
Am feeling very grateful to everyone who persevered in reading and answering my issue and wish to thank all, esp. fleetwin who didn’t give up. Apologies to those who suggested cleaning the points, I’d done it so many times over the last week that I’d long discounted it as an issue. Just shows you…
Thanks for the suggestion re. the lateral movement in the mag plate. The original was a likely cause with about 2 -3mm play.
