According to this thread

Engine Weight for 300D in W123

the non turbo OM617 sans fluids is 567lbs = 257 kg

That sounds about right - I can shift 300 kg - I'd probably **** my pants if I tried to shift double that!

So I say a bit less than 567 lbs is your magic number

__________________
1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!