I've got a 68' 40hp selectric shift. It's my first motor and I am getting it to run according to the manual. My question is this: I've replaced the water pump and was told that if I put a garden hose to the water tubes (while disassembled) that I should see it "piss" out the back. It doesn't, and the manual shows and says nothing about what to check or how to fix this "blockage". Help of any kind would be appreciated!! THANK YOU!

