engine room circulation and transom cowl vents

[jtsai]

The 32-3 has a pair of transom cowl vents and were once connected to flexible dryer hoses. I am puzzled how these hoses are routed and their functions. The starboard side air hose (left of below picture) emerges from the fiberglass pan near transom then disappears near the rudder shaft. The port side hose (right side of the picture below) emerges from the fiberglass pane at transom and I assume it connects to the port transom cowl vent. Is this some kind of of air circulation pattern to this setup?

 

[Jerry VB]

They are for engine "room" ventilation. One should open higher up and one lower down. One (the lower one?) should have an inline blower. You should be able to see the lower outlet in the engine compartment by looking aft under the sink.

 

[paul culver]

I've also been told that the above-deck scoops should be oriented in opposite directions.

 

[Kenneth K]

On my 32-3 the (original, I believe) routing has both vents originating in the lower, aft, engine compartment, and exiting at the stern cowl vents. One side (I don't know which) has an inline blower installed. Both vent hoses run under the "pan" shown below (shown with water heater removed) and exit the pan far aft in the stern.



I've read that the blower hose inlet should be placed high in the engine compartment (to suck out the hot air and replace it with cool air) but I've never seen a convenient way to set it up as such.