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    Merc 140 Alpha 1 thermostat deep fried. question with photos

    Im hoping this is what caused my overheat on the lake last Saturday. Was out for about 30 minutes and the temp gauge hit 250F. What looked like steam was coming from the exhaust, shut down and cooled off but after an hour she would not start. Im replacing the thermostat and impeller, charging...
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    Merc 140 3.0l Alpha 1 impeller question. Look! pictures!

    Overheated on the lake on Saturday and suspected the impeller and or thermostat. Pulled the lower for the first time and here is what i found. The pump housing appears melted and the impeller looks too big. Should the impeller diameter be 1/4in+ bigger than the diameter of the housing? Also it...
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    Merc 3.0 not getting fuel at 3/4 tank

    Merc 140 3.0 SN 6903513 1985 Searay Seville 5M. Boat ran great today until it stopped getting fuel. I filled up the 20 gal tank before going out but after running about 5.2 gallons (from the gas pump later) NO FUEL. Carb dry, fuel filter empty. After fillup ( and a long tow, UUGH) motor purred...
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