Morris Minor Owners Club

1098cc van, started, driven four miles, albeit lumpy, big bang, lots of blue smoke but continues to run. After standing a few hours, totally refuses to start including towing. Defies number of experienced Minor brains. Spark/Points ok/temporary coil swap/fuel getting through making plugs wet. Compressions appear ok as far as one could tell whilst on a rally field.
Nagging thought, what would be the effects of diesel in the fuel ?

Plugs that smell of diesel and a non runner I suspect.

Certainly - clouds of blue smoke and poor running.... Generally -wet plugs indicates an ignition problem. There is plenty of fuel.....but is it petrol? Dry the plugs (actually better to stick in another set) - disconnect the fuel pump - and pour an egg cup of petrol down the carb. If it doesn't run for a few seconds - back to the ignition.