* Eliminating Carbon Monoxide Buildup: Inboard engines produce carbon monoxide (CO), a deadly odorless, colorless gas. Over time, CO can accumulate in the engine compartment, especially if the boat has been closed up for a while. Running the exhaust blower ventilates the compartment, removing any dangerous CO buildup.
* Preventing Backfires: When starting a cold engine, there is a risk of backfires. These backfires can ignite any flammable vapors that might be present in the engine compartment. A well-ventilated compartment reduces the likelihood of an explosion.
* Ensuring Proper Combustion: The exhaust blower helps to draw fresh air into the engine compartment. This fresh air is essential for optimal combustion in the engine, leading to improved performance and reduced emissions.
In short, the exhaust blower serves as a crucial safety measure by preventing dangerous CO buildup and backfires, while also ensuring proper engine operation.
Here's the general procedure:
1. Turn on the exhaust blower: Run the blower for at least 5 minutes to ensure proper ventilation.
2. Check for any unusual smells or sounds: This might indicate a problem that needs attention.
3. Start the engine: After adequate ventilation, it's safe to start the engine.
Note: Always consult your boat's manual for specific operating instructions regarding the exhaust blower and engine start-up procedures.
