See full version: Game-changing Yanmar 50 hp turbo diesel outboard motor begins production
With support from the Norrkust Marina Varvs AB in Båtskärsnä (near Luleå in Sweden), the Dtorque was tested at temperatures of minus 15 degrees Celsius at the Ymer icebreaker. In a port area, which had been freed from ice for the tests, the engine ran perfectly in all speed and load ranges, and started and idled so reliably at these icy temperatures that the Swedish coast guard directly expressed interest in the technology.
"We invited a wide cross-section of our customers around Europe to performance-test the outboards in differingsea states and loading conditions gathering as many opinions as possible," explained Floris Lettinga, Yanmar GlobalSales Manager. here
"With many commercial operators maintaining a single diesel fuel policy to avoid risk offire and explosion, the market potential for the Dtorque 111 is highly diverse. So far, the main option for smallworkboat propulsion has been the gasoline outboard. No longer is that true!"
The compact Dtorque 111 will be a boon to the small workboat market where it's expected lifespan ofwell over 10,000 hours at least doubles that of any comparable outboard gasoline engine.
We first became aware of Neander-Motors more than a decade ago when its highly unorthodox diesel engine was demonstrated in a motorcycle. Sadly, the benefits of the design were lost among the eccentricities of the motorcycle marketplace where small unconventional manufacturers are plentiful. here
The Yanmar Dtorque 111 is lighter and more compact than petrol engines of similar capacity, has double the engine life, is much smoother, offers much better fuel consumption and running costs, produces significantly less toxic emissions, and with more torque much lower in the rev range, will thrust a boat onto the plane much quicker . and that's before you consider the safety and ready availability of diesel fuel.
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Freshwater is friendlier to a diesel motor. They don’t contain salts that are dangerous to the motor and don’t corrode engines as fast as salt and brackish water. On average, a diesel motor used on freshwater will last the longest.
So you need to do constant maintenance in order to use the engine to the fullest. During a boat ride or a cruise, salt water will naturally touch some parts of the engine. Even with constant cleaning, continuous contact of a marine diesel engine with salt water will significantly shorten the life expectancy of a diesel motor faster than a motor used in brackish water and fresh water respectively.
The filters should also be constantly checked to ensure that the elements accumulated in them over time are emptied. Water is very dangerous to the engine and mostly at the fuel dock, its impossible to leave without having gotten a bit of water in the fuel tank. It is converted to steam and may harm the injectors, breed other organisms and create rust. here
Automobile engines have a longer time doing their rightful jobs. This is because they aren't exposed to as many woes as marine diesel engines. More adversity = less longevity, is the way engines work.
So how do you make sure you get it right? Let’s take a look at some poor and excellent maintenance practices that may positively or negatively affect the life span of your diesel marine engine. more
In the case of marine diesel engines too, its last days aren’t mostly the best, speaking of efficiency.
“And that’s what it is, a new 4.6-litre double-overhead cam V8 hiding beneath the angular engine cover. Like its high-performance automotive brethren, the Mercury V8 announces itself with a cold-start exhaust bypass.” more
If Mercury does add snails to its higher-performance outboards, it will follow a similar trend to the car industry, which has found that creating a shorter path to a turbocharger – by mounting it inside the engine’s vee – can significantly boost an engine’s performance and minimise turbo lag. Automotive performance brands including Mercedes-AMG, Audi’s Quattro and BMW M have all adapted hot vee designs with their performance drivetrains. here
"We are pleased that the USTR (United States Trade Representative ) and CBP (US Customs and Border Protection) have approved the exclusion requests for these three classes of outboard engines, which are very popular choices for fishing and family boating activities," Brunswick chief executive Mark Schwabero said.
“And why would you do it that way? For turbocharging.” here