Working around rain showers I've been installing engine room vents. The scare of carbon monoxide leaking from the engine room into the living space of the the boat has Sasha and me taking this project pretty serious.
We designated two of the small outboard compartments over the engine room as exhaust boxes. All our engine exhaust runs through these compartments (one on each side of the boat) We are also cutting two inch holes in the deck and fitting them with eight inch tall fiberglass pipes to create vents. The compartment on one side of the boat will be the air intake and the compartment on the other side of the boat will have a large fan blower that will force air out of the engine room.
We designated two of the small outboard compartments over the engine room as exhaust boxes. All our engine exhaust runs through these compartments (one on each side of the boat) We are also cutting two inch holes in the deck and fitting them with eight inch tall fiberglass pipes to create vents. The compartment on one side of the boat will be the air intake and the compartment on the other side of the boat will have a large fan blower that will force air out of the engine room.
Above is one of the two inch wide by eight inch long fiberglass tubes.
This material runs twenty dollars per foot down here on Tortola! Yikes!
Once I had holes cut in the deck (and ground to metal around the holes) I used a fillet of thickened epoxy to join the fiberglass tube to the deck of the boat. After letting that set up a few minutes I cut fiberglass cloth and, soaking each layer with thinned epoxy, I piled on four layers of cloth per tube.
These suckers are not going anywhere! Now I need to sand, prime, and paint the tubes to protect them from UV damage. Also, notice the step I installed just above the tubes. It is tapped and bolted in place for now, eventually we will have our guy Teddy come out and do some welding with us.
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