Water Flow from Exhaust

Steve36

Member
May 17, 2007
177
Lake Ontario
Boat Info
2010 540DA
Engines
Cummins 8.3L Zeus Drives
Hello all.
Just wondering if someone can help me with the following.

I just ran my new to me 2010 540 DA with Zeus drives from Detroit to Toronto.
During the transit I noticed the port side exhaust showing very little water flow.
The boat just had new impellers done and all temperatures were normal during the 4 day transit (at various RPM’s).
I did notice that the port side had a lot more exhaust smoke compared to the starboard side.
I also notice that is was noisier on the port side (due to reduced water flow).

Can you shed some light as to what could be causing this ? and if I should be concerned.
 

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