1971 mercury lower unit removal

canoncollecta, Jun 2, 3:12pm
hello i need to replace my impeller in a 1971 merc 500 thunderbolt.
do I have to disconnect the shift shaft rod before dropping the lower unit!
thanks

red97, Jun 2, 6:32pm
i do not know
i use you tube for my outboard maintainence they seem to have a video for every make and model particularly for water pumps