there is a static timing mark on the pump hat will enable you to lock the pump to reinstall close enough to get key and key way to mesh, you might need to reset timing but this will get you running with close to your initial timing.
the pics are 1st a 4bt pump from clp 767 the second is a 6bt from a bus the mark could also be a raised bar cast into pump case.
the pics are 1st a 4bt pump from clp 767 the second is a 6bt from a bus the mark could also be a raised bar cast into pump case.