I have a 1975 Johnson 115, there is water shooting out of the sides of the lower unit. It is coming from where the lower and upper unit connects. I have already changed the water pump and I have changed the seal that goes around that exhaust port. The manual is not calling for a seal to go in between the upper and lower unit so right now I am lost. Is there a certain way I am suppose to put it back together. Or a certain amount of torque that I am supose to use.