I have a 1992 mariner 60hp that I need to change the water pump impeller in. I have the clymer manuel, but I would appreciate any more info offered on how to change it. I have never dropped the lower unit before and just want to make sure I read any and all tips available before I attempt it! Thanks for any help anyone can offer! my email is ncmedicineman@yahoo.com if you happen to have good pics/directions/etc!!