Inboard engines are mounted inside the hull’s midsection or in front of the transom. The engine turns a drive shaft that runs through the bottom of the hull and is attached to a propeller at the other end. Many PWC have two-stroke inboard engines that burn oil as a lubricant along with the fuel.
How does an inboard boat engine work?
An inboard engine works just like a car engine in terms of how it creates power and delivers drive to the boat. … This piston is connected to a drive shaft or crank shaft, so when it goes down it turns the shaft part way. A series of pistons being pushed down at intervals cause the drive shaft to spin.
Is it better to have an inboard or outboard motor?
Because it will usually weigh less and be a more-efficient design, an outboard motor will typically deliver better fuel economy than a sterndrive. … However, most sterndrives can not be tilted completely out of the water, while most outboards can clear the water when tilted all the way up.
How does an inboard cooling system work?
Most marine inboard engines are fresh water cooled. Much like your car, a captive amount of freshwater (coolant) is continually circulated through a heat exchanger that maintains the engine at a temperature set by the thermostat. Usually this is between 170 and 180 degrees.
What should you do before starting inboard 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.
How long do inboard motors last?
How Long Do Boat Motors Last? Boat motors typically last at least 2,000-3,000 hours before they need serious maintenance. Inboard motors will sometimes last longer because they are more protected from wear and tear.
How much does an inboard motor cost?
If you run an inboard, expect to pay somewhere between $1,000 – $1,500. Most sailboats can do with a small 5 – 10 horsepower outboard engine without problems. These engines are easy to maintain and cheap to run. And they’re cheaper to replace.