01-20-2020, 08:41 AM
I have recently had problems with sea water entering the port engine on my 1996 40 Express with Cummins 6CTA engines. The water is entering via the exhaust system. I appears water is building up in the lift muffler and then flows back into the engine after it's shut down. The boat yard is checking the lift muffler to see if it may be the problem. The yard also believes the problem may be caused by the design of the exhaust riser. Have any other 40 Express owners had a similar problem? If so, have any owners had custom exhaust risers installed? Any information on this topic would be appreciated.


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