I have a '74 inline 6 150hp Mercury outboard. There is a small hose that goes to a water pressure gauge that hooks into a fitting between the 3rd and 4th spark plugs. The fitting also hooks up to the "pee hole". The small hose is leaking, and the pressure gauge isn't correct. How the heck do I reattach this thing? This is the fitting:<br />
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<br />The small hose goes into the center of that, then that is screwed into another fitting on the engine block. Problem is the hose doesn't really fit through the center...how is this thing suppost to work?!

