Re: 1979 6hp Crysler
The water pump is on top of the lower unit. Do you have a long shaft engine? if so, you must disconnect the lower unit at the lower set of four bolts holding the lower unit to the 5 inch leg extension. I don't remember the pump assembly on the 6 hp but I believe it is different than the 9.9-15. at any rate, look for a housing where the drive shaft goes into the lower unit. It will be held on with 3 or 4 bolts. The impeller is inside it.