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  1. R

    3.7LX with oil in coolant

    I know this sounds crazy, but I have a 3.7LX with oil in the coolant system. I flushed it in hopes someone inadvertently put a qt. of oil into the system, ran it and the oil reappeared. I've checked everywhere to see if there's an oil cooler, but I just find the filter housing with a screw-in...
  2. R

    3.7LX oil cooler & manual

    I have twin 1989, 3.7LX, 180hp engines in my 27' Carver. The port engine developed oil in the closed fresh water system. From what I can tell, there's an oil cooler within the intake manifold. I can see the cover & bolts, but I'm not sure if the cooler is an integral part of the manifold and...
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