When I laid a Straight Edge a crossed you pic the Timing Marks were not lined up; but were close.

On the 617s in the FSM to correct the Pointer it calls for removing the #1 Prechamber and inserting a Dial Indicator with a long tip on it and bringing up the #1 Piston to Top Dead Center.
Adjust the Pointer if needed.

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84 300D, 82 Volvo 244Gl Diesel