1978 4/4 1600cc. Happily rattling down the road, and then all of a sudden Molly stops. No dash lights (ignition etc.) Rev counter drops to zero. No go Joe. Coast to the side of the road, mostly she will start gain, sometimes with a few tries, sometimes right away. Evey now and the she will hiccough while in motion and then fire again, same symptoms. Any idea where to start troubleshooting? Earth lead from Battery to chassis looks OK, but i haven't unbolted yet. Do you think I am on the right track?
Obviously something electrical. When you say 'no dash lights' do you mean they go out at the same time?
I recently had an issue with a worn ignition switch - any bump would move the key slightly and cut off the power - sometimes slighly, giving a misfire and sometimes full shut down.
Replaced the switch and all fixed (went for an MGB one, almost identical wiring and fitting and a fraction of the price of a Morgan one).
