I used the Power Steering Nut/Bolt to rotate that Engine even though many Members say not. In order to use it you need to check your Power Steering Belt Tension.

If the Belt slips when you try to rotate the Engine try pushing down on the belt at the same time you turn the Pully Nut/Bolt.

After that, if turning the bolt will not rotate the Engine you need to loosen the Power Steering Pump and increase the Tension on the Power Steering Belt by screwing in or out the Belt Tensioner Screw.

When you are done you need to return the Belt to a more reasonable belt tension and of course tighten up the loosend Power Steering Pump.

The recommend place to turn the Engine is by the Crankshaft Bolt with a 27mm Socket (or 1-1/16 inch socket; same size as your Injector Removal Socket).
However, this is too inconvient for me.

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84 300D, 82 Volvo 244Gl Diesel