PMY - Power&Motoryacht

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-...

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...

When my buddy Bruce said he had a like-new Jabsco Porta Quick oil changer he’d give me for free, I was happy. When I discovered the unit sells for $209.99, I was ecstatic.The...

I’ve just purchased a new diesel inboard. What’s the best way to break it in without damaging it? -- Walt ReidMost manufacturers list procedures for break-ins in their...

Ever find yourself wondering if the fuel you're taking on is of good quality, or whether it might be contaminated by dirt, water, rust, or worse? Well, you should, especially if...

In 2003 several states switched their on-the-water gasoline from the traditional methyl tertiary butyl ether (MTBE) blend to one containing ten-percent ethanol, called E10....

The most controversial component of the decade eliminates the emissions from your boat's engine and hopefully not the money from your pocket.  The Environmental...

If you're reading this magazine, chances are you're not a tree-hugger: You burn lots of fossil fuel to push your boat at high speed through a relatively unyielding...

You don't know what quiet means until your diesel goes "clunk" and dies—silence may be golden, but it rarely bodes well. "Clunk" is what a snapping crankshaft sounds like,...

Pessimists have been known to argue that engines are nothing more than constantly degrading machines. It's a somewhat depressing characterization to be sure, but it's also a...

The way the average marine transmission accomplishes the mission is "Way more complicated."Okay, my education concerning things mechanical has not been formal. Indeed, you might...

You've heard the mantra before, but it bears repeating. A diesel engine basically needs just two things: clean fuel and air. If it's missing either, it's dead. That's why...

Here's the situation: You're in the market for an engine rated at 1,000 hp. But before committing you wonder, is that rating accurate? The answer is, sort of. The numbers on an...

Even under ideal storage conditions, E10 gasoline has a "shelf life" of just 30 to 45 days. After that the ethanol and gasoline start to go their separate ways. During the season...

Starbrite Star Tron Enzyme Fuel TreatmentMy trawler spends plenty of time sitting in a slip with her fuel tanks semifull and her powerplant twiddlin' its thumbs. To deal with the...

As more states mandate E10 ethanol-blended gasoline for off-road use, the problem of water accumulation in fuel tanks grows. And nothing can ruin your day faster than your engine...

If you really want to know what's going on inside your engine, you need to know about oil analysis.In the surfeit of CSI programs so popular with TV viewers these days, one scene...

There are plenty of reasons why the diesel engine is the best power choice for boats over 35 feet, and principal among them is its sterling reliability and reknowned durability....

Are you the parent of tired, rusty, and thirsty gasoline guzzlers, the kind of engines that keep OPEC happy? If so, your boat's overdue for repowering with more efficient diesel...

In the past year there's been a lot of worry among boaters about the ill effects of soon-to-be-universal E10 ethanol-blended gasoline. Depending on who's talking, the changeover...

The author (left) and another student get a torque-wrench tutorial from instructor Larry Berlin (right).A friend of mine who I considered to be a knowledgeable, experienced boater...

After I'd delivered my Grand Banks 32 to her new Florida home, her whole schtick changed—she went from being a true long-legged cruiser to the maritime equivalent of a couch...