Now that I got your attention, here is my problem. I am working on a 1969 Johnson model 55esl69A. I got it as a derelict, so have no history. After fixing some electrical issues, I got it running, but noticed it was getting too hot. I figured it was due for an impellor anyways so I dropped the gearcase. Only one guide tube was present, and the cover/seal assemblly on the water pump has to places for water tubes to go, but one is completely blocked off. So I rebuilt the pump, and am going to put it together, but here is what is perplexing me. The parts breakdown on more than one website sjows this unit is supposed to have 2 tube guides, and extension tube, 4 grommets, and 2 water tubes. Now on my older 1965 40hp unit I used to own, it was obvious water exited the pump, went up one tube, and returned down the other, and each tube sealed to the pump cover with a grommet. But on this unit, it is clear one grommet is held in by the cover, but the other grommet would be useless because the other hole is blocked off, by design. So then I thought maybe there is only one tube, but I looked under there today and there is a second tube! But if I stick it into the cover, it will just be capped off by the cover. I do not understand why it is made this way, or why it is completely differant than the parts diagram. Here are pictures of the cover so you can hopefuly see what I mean. Can anyone shed light on this for me? Is this some revised set up that only uses one tube, if so why leave the other in there, and how does the water flow through the head for cooling?
