4 weeks have passed since work started, and the engine, now with new fuel pump, is running! YAY! So, to recap, it was leaking oil big time. Mike and I pulled the engine to investigate, and found oil leaking from the oil cooler, the flywheel oil seal as well as the sump plate.

4 weeks on and I have a new oil cooler and flywheel oil seal, I've cleaned up the sump plate, thrown out the cardboard engine bay liner that had sagged with age and was being eaten by the fan, changed the oil, set the valve clearances and fitted a new fuel pump. No leaks, and it's running well. Bit concerned about the fan belt... too tight? I'll look at it later.