I don't have a manual and I'm out of options right now so I'm hoping I get some helpful info. on how to change the water pump/impeller kit on my 1983 4.5 evinrude. I can't separate the bottom from the top to get to the shifting rod link disconnect....got the screws off (6) from underneath and (4) from inside the top side, but I can't get it separated...don't want to pry too hard and break something....any suggestions will be greatly appreciated.....thanks