Hello MB enthousiasts

A month ago i gave my injection pump for a rebuild with new parts and it is soon going to be ready. My question is, how to time it properly when i put it back onto the engine. The crankshaft and camshaft have timing marks but i didnt see any on the injection pump output shaft nor the chain pulley that drives it.

A little help here please can anyone give me detailed info on how to do this right??

1986 190D 2.5 no turbo
5 cylinder with BOSCH mechanical pump
300+ k