6081a fuel injection timing

Serial number 166xxx tier 1 it has a mechanical inline injection pump looking for procedure to time fuel system got cam and crank timed. Was told the pump can be pined like a cat but I couldn't find the plug for pin. it'salso got and indexable gear on the front held by 4 torx screws so if I time pump and engine does the front gear matter ? Any thoughts welcome thanks hef will try to upload some pics

6081a fuel injection timing