This can certainly be done, but why? Dry exhaust has some real advantages,
especially in winter operation; exhaust system cannot freeze. Additionally,
you eliminate the water injection elbow which is an achillies heel of
diesels. With a suitable muffler the sound of a dry exhaust is sweet. Just
stay away from the hot pipe!
To replace, you will need a water lift muffler, injection elbow and
associated piping, rubber hose, vacuum breaker and through transom fittings.
Have a look at the waterlift muffler manufacturers pages to learn about
height requirements. The height of the wet elbow above the muffler and the
height of the wet loop above the waterline are critical requirements. These
are not easily met in lots of lobster boats because of the need for a level
working deck.
"Jim and Becky" wrote in message
...
I'm considering the purchase of a 32 foot lobster boat. It has a Cat
straight 6 diesel with a dry exhaust.
Does anyone have experience in changing this set up over to a through
transom wet exhaust?
I'm concerned about the height of the pipe relative to the waterline and
possible intrusion into the engine.