The previous owner rewired part of it after it caught fire! The glow plugs are 9v but connected to 12v so not good, the relay is an old starter solenoid, the diesel system sucks loads of air in when parked for a day or two.Looks like the engine is not the only bit that's been updated since 1964.
So what issues are you having? Too much wheelspin?
Thats all ready on the list antifreeze this weekend and try to keep it inside the engineWelcome - check all your hoses for a start they’re probably porous by now !