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  1. R

    1994 Mercury 40HP 2 stroke outboard overheating

    Pictures for reference
  2. R

    1994 Mercury 40HP 2 stroke outboard overheating

    Thanks Tejas. Appreciate your input. I pulled the powerhead Sunday. The fitting that the copper cooling water pipe fit into was loose and the gasket was 70% missing. Screws were loose. I fixed all that, used some good gasket sealant on the new gasket and Loctite on the screws. Working good...
  3. R

    1994 Mercury 40HP 2 stroke outboard overheating

    I've replaced my water pump twice and engine is still overheating. I get tons of smoke/steam out of the pee hole and when I shut down the engine it puffs out a huge cloud of steam/smoke. See photo. I suspect the exhaust plate gasket is damaged right where the copper tube slips into it's home...
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