Follow up to my loud hissing sounding exhaust. Raw water system good, flow at 
end of heat exchanger going into the mixing elbow strong. Looked inside of 
mixing elbow, no blockage(aided by flexible fiber optic scope). I didn't want 
to run the engine with exhaust hose off of the elbow. figured it would make a 
sooty kind of mess in the engine compartment. So I've decided the lift muffler 
must be the culprit. Outside jacket showing some spots that look like its 
rusting thru from the inside out. Perhaps inside baffling is deteriorating and 
causing blockage? In any event looks like a potential fill the boat with water 
issue. As I stated earlier the engine runs ok, no overheat condition, didn't 
really notice lack of power.Any other thoughts? Looks like Defender has some 
good prices on veralift units. They also have a Vetus model twice the price 
looks like its a composite material.Listers any experience with either?Thanks 
as always.JimGalaxy 34'Brielle NJ

                                                                                
  
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