Engine

Engine

How to Take Care of Your Bow Thruster

Your bow thruster is like a really handy stowaway—it sits quietly tucked belowdecks for most of the voyage, only to show up during close-quarters maneuvering to simplify the process and maybe even save the day. How do you make sure it’s there when you need it? Check out our handy tips here.

How to Make Your Boat's Engine Last Forever

Can you keep your engine running forever? Capt. Richard Thiel thinks so. By diligently following an aggressive maintenance program, you can keep her purring smoothly, avoid midseason calamity, and stave off the need to repower—if you go about it the right way.

How to Polish Your Fuel to Keep Your Boat Running Smoothly

Fuel treatments and additives can go a long way towards keeping your boating season trouble-free. But when you get into diesel-powered vessels that are 40 feet or more, the best way to remove water—and the nasty stuff that comes with it—from your fuel tank (or tanks) is to add a fuel-polishing system to your engine room. While initially developed for large yachts and commercial vessels, fuel-polishing technology has caught on with owners of smaller, medium-sized boats these days as well.

Troubleshooting Your Boat's Engine

How to troubleshoot engine problems on your boat. 


We’re going to talk about the art, guidelines that define the way you approach a problem—any problem. It could be a dead engine, smoke in the bilge, or a jammed silverware drawer in the galley. These ten rules won’t guarantee that you’ll solve a problem, just vastly increase your chances of success and vastly decrease your chances of making things worse.

 

Troubleshooting Boat Performance

A reader wants to know why his boat is slowing down.

Boat performance is one of those things that a boater can usually troubleshoot himself. There are four main factors that affect it: engine output, propeller efficiency, hydrodynamic drag, and load.

Marine Engine Horsepower Ratings

Power & Propulsion: What Does Your Engine’s Horsepower Rating Mean?

Understanding what horsepower is, what it gets you, and why less is sometimes more can help your engines last longer. Learn more about horsepower ratings mean here.

Clean Marine Engines from John Deere

John Deere’s new 4.5-liter marine diesel meets EPA Marine Tier 3 requirements and has enough power to replace the company’s older 6.8-liter Tier 2 engine. Want to know more about this PowerTech line? Click here.

Engine-Room Test

Take our engine-room test on your own terms. Know the names and locations of basic engine-room components and you won’t be embarrassed next time your mechanic comes calling.

Your Boat's Fuel in Winter

With the ethanol debate continuing to rage, should you gas up your boat before winterizing or leave the fuel tank empty?

Tips on caring for gasoline engines and fuel when you winterize your boat.

Outside-the-Box Outboards

Just when you think the latest gas-powered outboards have wrung every drop of power from a gallon of fuel, along comes a new way to tackle the problem. See two new developments here.

Diesel Engines and a Cleaner Environment

Power & Propulsion

If you pay any attention to the topic of boat engines, you’ve probably heard the term “common-rail diesel” bandied about and perhaps wondered what it means. In fact, this technology is in no way restricted to the marine venue; it’s also common in both stationary and vehicular powerplants, mainly because it helps diesels meet new, stricter emission standards. 

Engine-Mount Maintenance

Properly maintained motor mounts result in more than just a vibration-free ride.

Regardless of what fuel prices are doing (wise not to think about it too much), it’s best to get as much as you can from every tank of fuel. Smart boaters are looking closely at their engines and tuning them for maximum efficiency. But based on my experience, it’s a safe bet that even many experienced boaters are overlooking one critical area...

Auxiliary Propulsion Unit

Finally retired, you’re on a weeklong cruise aboard your trawler, just you and your wife. Suddenly your only engine quits, and you can’t restart it. Your peaceful cruise is over, and your wife is asking, “Are we stuck in the middle of nowhere?”

Walker Engineering

Walker Engineering has been making diesels breathe better for more than two decades.

I used to crew on a 43-foot sportfisherman that was powered with twin 625-hp Detroit Diesel 6V-92s, and those engines were tank-like. In fact, the current owner of that boat has 3,000-plus hours on those original motors and they’re still going strong. But after

Back to Basics

Fort Lauderdale's International Yacht Training offers a true hands-on dieselengine course with small class sizes.
Instructor Hartley MacDonald lectures to his students during an in-class segment (the author is at right). The course is five days long.

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