From that description the engines should be fine in that boat. The boat has plenty of power. The cruise speed is well beyond just planing and...
Early failure on DD is due to overheating or overloading. If the engines can turn a true (laser/digital tach) 50-100 rpm over their rated rpm...
The price for converting those mufflers probably has a great deal to do with the interior cabin work. If he just wants to rip it out it should be...
I think you are correct but this is one site where everything is discussed from a row boat up to ships. Also around the world. In my experience...
The full sequence of pictures is posted online. Try this link: http://pnyr.big1059.com/cc-common/gallery/display.html?album_id=249965...
I see your point. But that phrase has probably been used since before I was born. At the very least I know a DD mechanic who used it that has...
It's a standard test any DD mechanic can do. While the engine is at idle you put the injector to full fuel briefly. A sharp sound will be heard....
On the weather channel this morning they had a reporter up in Chatham MA. He pointed out that it was rougher today than yesterday. Yesterday was...
It takes relatively little fuel (power) to reach 2650 rpm under no load. The only thing the no load test really "tests" is the governor setting....
DOH - my bad. I'm so used to hearing it incorrectly that I guess I double corrected.
Technically an 'N' Detroit stands for normal not natural. Natural diesel engines rely on atmospheric pressure. Detroits use blowers. If WOT...
There is very little stress on those engines in neutral. Running diesel engines at WOT in neutral is standard procedure. It's necessary to set...
That is a common misconception. On a boat the propeller loads the engine. Doesn't matter if the engine is 100 hp, 500 hp, 1000, 5000 hp. If the...
I'll agree that larger injectors are less efficient at lower volumes. If you look at the hp/fuel curves you will see that these engines are most...
No that's not how it works. The amount of fuel injected is based on the load. If the engine gets more fuel than it needs to turn a certain rpm...
The easiest and safest way to de-rate these motors is to change the props. Take out pitch and you take off load. It doesn't make (much of) a...
Gallons per mile is just the reverse calculation 52 gph / 21 kn = 2.48 Gallons per mile. I'm not sure where you got the 52 gph but you'll...
Well I was looking for information - not trying to start an argument. It was my understanding that tonnage alone does not indicate "RAM"....
I think it may be DOH! for the Captain of that destroyer. Can't be good for him. The crew should have detected the small boat and identified it...
NYCCapt is probably right. The engine will pull air straight from the exhaust leak right into the filter. Once the filter clogs you get tons of...
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