I've got the recent posted question on how to remove the lower unit. I'm doing this to check the lower gear unit seals, but now after reading some archives, I don't know if that is necessary. I bought the motor used. 1980 Johnson 25 hp LONG shaft (From E-bay!!). Motor cranks and runs great. Clean water shoots out of port. Gears shift and prop rotates fine. I cranked the unit in a makeshift "tub". After running 3-5 minutes I noticed gray/black thick watery goo dripping from the lower unit water drain opening. Probably about 1/2 cup slowly came out. I next drained the lower gear lube and at first a couple tablespoons of CLEAR water came out and then the same gray/black looking goo. Never seen dark oil in the lower unit so I proceeded to try to remove the entire lower unit to rebuild it with all new seals, impellar, etc. except I'm fighting some of the bolts right now. Do you think there is a problem worth investigating, or do you think I should proceed? No matter what, there was definitely water in the lower gear unit, so I figured I need to get in there to replace seals. Any thoughts???
