Readers ask: Why Must You Operate The Exhaust Blower Before Starting A Boat’s Inboard Gasoline Engine?

Why must you operate the exhaust blower before starting?

The exhaust blower should be operated before starting a boat’s inboard gasoline engine to expel the gasoline fuel vapors occupied in the bilge, preventing explosion.

What should you do before starting an inboard gasoline engine?

If you have an inboard gasoline engine, you need to turn on the blower for four full minutes before starting your boat. This very important step is to remove any fumes that could be lingering in the bilge. All portable fuel tanks must be filled off of the boat.

What is the purpose of a blower on a boat?

In gas-powered boats, there should be one blower for each engine. The blower’s primary job is to remove any gasoline vapors in the engine room. These vapors are highly explosive and if ignited by a spark can destroy the boat and anyone on or beside the boat.

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When should the blower be operated on a boat?

If your boat is equipped with a power ventilation system (exhaust blower), turn it on for at least four minutes before starting your engine. This will help eliminate fuel vapors in the bilge. Before starting the engine, sniff the bilge and engine compartment for fuel vapors.

Do you leave the blower on a boat?

You need to also turn the blowers on (or leave them on) between starts when you are using the boat for water sports. Each time you shut down you risk fuel build up and you‘ll have people climbing in and out of the boat don’t restart if you haven’t run the blower.

What are three short blasts of a horn?

One short blast tells other boaters “I intend to pass you on my left (port) side.” Two short blasts tell other boaters “I intend to pass you on my right (starboard) side.” Three short blasts tell other boaters “I am backing up (operating astern propulsion).”

Should a boat be stored with a full tank of gas?

Filling the Tank

Marine engine manufacturers and technicians advise storing any boat with the fuel tank almost full, leaving just a little capacity to accommodate expansion of the fuel if the temperature warms. This can occur if the boat is stored outdoors or in an unheated building.

Where is the best place to install a radar reflector?

It should be installed in an area where it is a minimum 4m (13.1 ft) above the waterline and higher than all the surrounding superstructures to insure that you’ll be seen on the radar screen of large ships and fishing boats.

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Why do boats explode after refueling?

Any watercraft with an inboard gasoline engine has a very real potential to explode. This is largely due to the buildup of gas fumes within a confined space, such as the bilge or an engine compartment. These gas fumes could possibly ignite and quickly spread, ultimately leading to an explosion.

Do I need a bilge blower?

If you have an inboard engine boat, a bilge blower is an absolute requirement. The United States Coast Guard (USCG) requirements include functional bilge blowers. On all non-open type boats built after 1980 that run on gas. Even if your boat is much older than that, it must meet the minimum USCG ventilation levels.

How long can you run an inboard out of water?

and it can run day in and day out. (Without coolant and you risk damaging the neoprene impeller in the waterpump after about 30 seconds. Take that out of the equation and the engine is good for 3-5 minutes.) If you run an inboard out of the water you need to be very aware of the prop under the boat.

How many minutes should a blower be operated?

DANGER: To prevent a possible explosion, operate the blower for at least four (4) minutes before starting the engine and always when at idle or slow running speed. Explosive gasoline and/or battery fumes may be present in the engine compartment.

How long should you run your blower?

The minimum recommended time you should run the blower to ventilate the bilge is four minutes. Before switching it on, however, rely on one of the most sensitive odor-detectors you have — your nose.

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What other equipment must be on board if your vessel is 16 feet or longer?

If the vessel is 16 feet or more in length, one throwable floatation device – Type IV – like a ring is required as well. Life jackets must be easily accessible, in good working condition, and fit the individual it is intended for properly. Each state has their own regulations regarding children’s life jackets.

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