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  1. Niels45

    2 Black sparkplugs

  2. Niels45

    Oil temp mercruiser

    my mercruiser 140 4 cyl 1980 might run hot after 30 min boating. Water temp is ok, but does anyone know what temp the oil should be? Oil temp is the same as the outside of the motor I think?
  3. Niels45

    Mercruiser 3.0 idle rpm increase when hot

    Hello, my 1980 mercruiser 140hp full rebuild, has the folowing problem: After half an hour boating, when engine is hot, the rpm is increasing from 650 to 1000 rpm. The engine runs fine, carb is rebuild, ignition has al new parts, well adjusted, ect. Could it be something like false air or...
  4. Niels45

    Kill switch problem Mercruiser 3.0 1980

    Hello, After cruising, when engine go to idle, the engine often stops. The idle speed is 850 without load, and 650 in gear. When I put the engine from gear to free, the kill switch works, but it seems to close to long. Is that possible? And is it adjustable? Or can a bad lower shift cable cause...
  5. Niels45

    Timing mercruiser 140 (181) from 1980

    Hello, I’m Niels, from the Netherlands and new on this forum. Since 10 years i’ve had several different boats, and now i have a Draco 23 sc (1980) with a mercruiser 3.0 140pk. The problem i have is with my engine. I Timing is set on 8 gr btdc, and the engine runs ok, but stationaire is...
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