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    Oil or gas sheen in exhaust water 1986 350 hp 454

    I am starting a new thread here as we have worked on the problem and are at a new spot. Engines are Crusader 454 350hp 1986 with 1,500 hours in a Bluewater 51. Originally had oil or gas like sheen coming out in exhaust water of port engine. Thought it might be running rich so we started...
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    Crusader 454 raw gas in exhaust stream

    I have twin crusader 454s in a 1987 Bluewater 51 with 1500 hours on them. Both engines run perfectly at all speeds. The port engine is producing a lot of sheen in the water as raw gas coming out of the exhaust. I noticed last year that the port engine had soot on all 8 plugs rather than the...
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    Gas in exhaust water

    "I have a 1987 bluewater with "I have a 1987 bluewater with twin 454 crusaders. The engines have 1,100 hours on them. I change the plugs every two years and put on about 80 hours per season. I had electronic ignition installed in 2001 and the engines start and run flawlessly. The engines...
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