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  1. M

    thermostat puzzel

    I am trying to replace the thermostat in my mercruise 260/350 engine. I bought one new with a gasket set which is confusing. The parts are the correct ones for the engine but there is one gasket that would totaly close the thermostat hole. Why would one completely close the water flow? Another...
  2. M

    1978 searay 350/260 engine upgrade

    What needs to be changed in order to upgrade to a newer year/vortex model engine and keep existing alpha/mr drive? I have a 1978 350 mercruise engine that went bad and see specials on vortex engines. I want to upgrade but don't know if it will be too hard on the old outdrive and what coupling...
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