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1984 Black Max
I agree water in the cylinder is bad. I am hoping a cracked head or head gasket. If an impeller brings the water pressure up I would wait till next season to repair or even wait a few seasons to replace the motor and or boat. On Sun, 06 Mar 2005 23:18:30 GMT, Short Wave Sportfishing wrote: On Sun, 06 Mar 2005 18:07:00 -0500, Richard R. wrote: 200 HP Mercury Went fishing last night (first time out this season) and water pressure was only reading 10 psi. That ended the great fishing expedition. I would not run the boat. I picked up a new gauge today because the old one stuck some at lower pressures. tested and still about 10 psi. I also replaced the plugs because I thought I heard a slight miss last PM. What bothered me and heres the question. I had water on the plug in #1 cylinder could this cause the loss of water pressure?? A cracked head or cylinder? I bought a new water impeller but wonder if I should install it. If this was a Evinrude, I'd suspect the pressure line from the engine to the gauge. That seems to be a consistent problem with one of my engines. I have to disconnect the line at the engine and gauge and blow it through every year. In you case, the loss of water pressure could be related to water in the cylinder as in you shouldn't have water in the cylinder. This wouldn't be a recent model Optimax would it? In any case, with water in the cylinder, it might be a good idea to compression test the cylinders and see what's what. If it's low, then you have a problem. Later, Tom |
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