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    Blue smoke, black smoke, Nissan SD-23.

    Hello, My Nissan SD-23 marine engine has blue smoke at idle but clean at faster speed. Clean at full speed in neutral, but under load at full speed, lots of black smoke. What is my problem with two different colors of smoke at different speeds and loads? Denny Sailing Nevada lake Mead.
  2. S

    Nissan CN 4-33, SD22P1 WATER INJECTOR NEEDED.

    What is the part number or a source for new water injectors for a Nissan CN 4-33, SD22P1? This is the tall round pipe mounted on the exhaust manifold that the engine exhaust enters and water is added before moving on out the boat. Denny Sailing Lake Mead Nv.
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