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post #1 of Old 07-14-2008 Thread Starter
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Black smoke and black water

Had to motor more than usual this weekend against a hefty wind. When I brought my 2QM15 up to 2600 -2800 rpm the exhaust turned black and the water being expelled out the back was also black. I usually cruise at around 22-2500 and have had few problems. I do confess that the oil level is slightly high. Not a pint or anything but slightly above the full mark.
Also after stopping the engine and sailing in choppy water, gusty conditions then restarting the engine the exhaust water wasn't sufficient enough to cool the engine. I had to shut her back down and sail some more. I opened up the raw water strainer to see if I had a problem there. None, but when I restarted the engine a few minutes later the flow was once again good. Did opening the raw water strainer break an air lock or did I just luck out? Any advice would be appreciated.
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