I just recently acquired a johnson 6 hp for my 12 foot aluminum i got it running but i could not see any water coming out the side for cooling, i don't even see where the water would come out except for maybe a small exhaust port in the main body, model 3 cd24s serial #j2819779 so i attempted to take off the lower unit to change the impeller but i can only get it to move about 1.5 inches i tried to loosen up the bolt inside for the gear shift but it did not help, where is the water outlet located and how do i drop the lower unit, i cannot seem to find any linkage to diconnect the gear shift lever.