I've just been to have another look at setting the timing. With a test lamp attached to the leaf spring of the points and the engine case the bulb stays on the whole time both when the points are open and when they are closed. Even I know this is not right.
I've got the insulating washer on right and can't see that anything is contacting elsewhere.
Last edited by courtney; 04/18/21 9:28 am.