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  1. W

    water in cylinders not from exhaust manifolds

    pulled the exaust manifolds off my 4.3l, omc. no signs of water in the ports that mount to the head. water passages almost totally closed at exaust end. almost no flow. spent 2 hours opening them up. tested both manifolds with keroseen. no leaks. re-installed, and bay tested. full...
  2. W

    OMC EXHAUST MANIFOLDS (CAN'T FIND)

    I am looking for exhuast manifolds for a 1987, 4.3 omc cobra. Part # 984221, 984222. Very hard to locate... Any suggestions.... Thanks
  3. W

    4.3L OMC COBRA WATER IN CYLINDERS

    I HAVE (HAD)A PERFECT RUNNING 1987, 4.3L OMC COBRA ON A 19FT CELEB. (TOTAL HOURS 270) AT THE BEGINING OF THE SEASON I "TULIPED" A VALVE. PULLED THE HEADS OFF, HAD THEM FIXED AND RE-ASSEMBLED. TOOK A DOZEN OR MORE TRIPS SINCE THEN, ONLY NOTICED OIL LEVEL RISING (NO SIGNS OF WATER ON DIP...
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