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  1. V

    Mercruiser 3.0 with dreaded water in the oil

    looks like a new intake/exhaust manifold and a new elbow solved my problem. I also decided to change out my fuel pump, carborator, coil, spark plug wires, distributor and my 32 year old 3.0 mercruiser is running pretty good. Sweating bullets about a cracked block or a blown head gasket but the...
  2. V

    Mercruiser 3.0 with dreaded water in the oil

    Thanks for the info. I will replace the head gasket and carefully examine the block for cracks after I pull the heads off. If there is a crack, I am leaning toward the new barebone block and reuse the pistons and connecting rod with new rings and connecting rod bearings. I will post photos if...
  3. V

    Mercruiser 3.0 with dreaded water in the oil

    Took apart the exhaust elbow and discovered that gasket was intact and there is no sign of water going down to the engine by looking into the large cavity which is full of dry soot. My next step is to replace the head gasket which looks like a one day or two day job. If I discovered a cracked...
  4. V

    Mercruiser 3.0 with dreaded water in the oil

    Yesterday (Feb 18) I was doing an oil change in my 3.0 Mercruiser inboard (1993 Bayliner Cuddy, 20 ft) and I got the dreaded water in the oil bc I pumped out milky oil of 1-1/2 gal and the oil capacity is usually 1 gal. My repair plan: (1) Change out exhaust elbow gasket (2) Change out...
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