Engineering Magazines

In a conventional marine diesel engine the power is produced by hot compressed air igniting fuel sprayed under very high pressure into the cylinder head. A marine diesel engine does not use a carburetor to mix fuel and air or spark plugs to ignite the mixture. Instead it employs the pistons to compress the air to 3000 kPa which causes it to become extremely hot and the fuel is ignited as soon as it is injected into the cylinder.

Some marine diesel engines are fitted with a heater plug in the inlet manifold or a glow plug in the pre-combustion chamber of each cylinder to provide additional heat to the combustion air during starting.

Diesel engines are heavier and slower revving than petrol engines but they are also more reliable because they do not rely on external carburetion or an electrical spark for ignition.

Newer engines use an electronic fuel injection system whereby fuel and air are mixed more thoroughly in the pre-combustion chamber before entering the cylinder. This system maximizes power and fuel economy and is also less polluting.

Every boater should have an understanding of how their engine works so let’s start by explaining the mechanical cycles.

Most reciprocating piston internal combustion engines work on one of two mechanical cycles-either the four-stroke cycle or the two-stroke cycle. These cycles designate, in correct sequence, the mechanical actions by which the fuel and air gain access to the engine cylinder, the gas pressure – due to combustion – is converted to power and, finally, the burnt gas is expelled from the engine cylinder.

The Basic Four-Stroke Diesel Engine

From its name, it is obvious there are four strokes in one complete engine cycle. A stroke is the movement of the piston through the full length of the cylinder and – since one such movement causes the crankshaft to rotate half a turn – it follows that there are two crankshaft revolutions in one complete engine cycle.

The four strokes in the order they occur are:

1. Inlet stroke. With the inlet valve open and the exhaust valve closed, the piston moves from top dead center (TDC) to bottom dead center (BDC), creating a low-pressure area in the cylinder. Clean, filtered air rushes through the open inlet valve to relieve this low-pressure area, and the cylinder fills with air.

2. Compression stroke. With both valves closed, the piston moves from BDC to TDC, compressing the air. During this stroke the air becomes heated to a temperature sufficiently high to ignite the fuel.

3. Power stroke. At approximately TDC, the fuel is injected, or sprayed, into the hot, compressed air, where it ignites, burns and expands. Both valves remain closed, and the pressure acts on the piston crown, forcing it down the cylinder from TDC to BDC.

4. Exhaust stroke. At approximately BDC the exhaust valve opens and the piston starts to move from BDC to TDC, driving the burnt gas out of the cylinder through the open exhaust valve.

The Two-Stroke Diesel Engine

The two-stroke engine uses two piston strokes to complete one power stroke and, therefore, fire twice as often as a four-stroke engine. A two-stroke engine is smaller and simpler with fewer moving parts. A two-stroke engine has the potential to produce twice as much power as a four-stroke engine of the same size, however, because of the extra fitting required in a two-stroke diesel engine, for example blowers and governors, they become more expensive to produce. There has been a shift towards four stroke diesel engines which have become more efficient and smaller.

Protect Your Marine Diesel Engine

Protect your engine by avoiding long periods (more than 10 minutes) of idling in a “no-load” situation. This is often done to charge batteries or cool refrigeration but if done repeatedly it will glaze the bores of the engine and cause premature engine failure. If the vessel is in a berth the engine can be put in gear to create load at idle.

All boat owners should have an understanding of basic marine diesel engine maintenance to keep themselves and their families safe on the water.

It is well known that 85-90% of all Internet users rely on search engines to help them locate the information they are looking for. However, only 7% of them look past the first 2 – 3 pages of the search engine’s search results. Therefore those top few spots are incredibly valuable, and competition for them is intense.

If your online success depends on getting the right visitors to your website, then it depends on high rankings for the right search terms, or keywords, on search engines. A high search engine ranking is critical. If you think you can’t afford to spend the time, effort and money it takes to get that ranking, then think again, the reality is that you can’t afford not to.

If you want to be successful in an online business, you must make the search engines your greatest ally. Search engines are the best possible supplier of long-term, targeted free potential customers. Good search engine optimization needs two vital ingredients

1. Content, Content, & more Content. 2. Links, Links & more Links.

1. Content for search engines is vital. It is fundamental to every legitimate search engine strategy. Good content is critical to a good search engine ranking because many elements of search engine algorithms insist on page content on web sites. The type of content you provide for search engines should also be the type of content your visitors will appreciate.

Simply put, that means if you provide content for your visitors, then the search engines will follow. Do your research for the correct keywords using a quality program such as keyword equalizer. Use these keywords in your Meta tag titles, and descriptions. Also use your keywords on your pages, in the titles throughout the body text. However, and this is important, be sure to use your keywords in such a way as to be valid to your readers. Avoid the deliberate overuse of keywords.

This is known as Keyword stuffing. It is unattractive and unappealing to your visitors. It does not provide them with the information they came looking for. If your visitors don’t like your site they won’t stick around, therefore it doesn’t matter even if the search engines do. However, keyword stuffing may well get your site penalized by the search engines.

There is currently much ado about articles for content on the web these days. One of the best methods of including quality content on your pages is with good articles. Write your own, or visit Content Desk, – join up if possible, – to find high quality articles to use in your pages for fresh relevant content that will be appreciated by your visitors. It will also help enormously with your search engine rankings.

Joining a pay per click program can provide appropriate themed ads on your pages. This is a great way of obtaining fresh new content which helps your ratings, and your customers. For multiple PPC programs PPC Management is a very useful tool.

2. Links to your site are also essential.

Quality inbound links provide access to your site for visitors and search engines alike. However, these links must be relevant to your target audience. From a visitor’s point of view there is no purpose in a link that is irrelevant to their topic of interest. They will probably not use it.

Search engines appear also to now be looking for relevant links, and tending to discard or even to penalize links that are irrelevant. Therefore, the type of links you provide for search engines should also be the type of content your visitors will appreciate.

Simply put, that means if you provide links for your visitors, then the search engines will follow. If you limit yourself to exchanging links only with websites that have a theme highly related to your own, the traffic you receive from those links will be far more targeted and valuable to you. Not only do highly relevant links bring you more highly targeted traffic, but they also provide customer satisfaction for your visitors. Therefore they are far more likely to visit you again.

Many search engines are now giving link relevance greater weight in their algorithms, in preference to purely link numbers. A large number of inbound links from pertinent sites that are highly ranked by the search engines is exactly what you need. However, to get those links, your content must impress the owners of the sites you link with. Back to that – content, content, content.

Obtaining quality links is a time consuming, but essential, process. Using a quality program such as SEO elite will help you to quickly find quality topical sites to include in your link exchange program, and make this job much, much easier. Another rapidly growing way of obtaining links that will be highly regarded by potential visitors and search engines alike is through an article submission campaign. If you submit articles applicable to your theme into quality article exchange vendors, such as Content Desk, they will be picked up by other websites looking for content, and distributed around the web. Include a few well placed links and have your biography link to your site or your opt-in page. You’ll be amazed at how well this technique is working for many home internet business owners.

Pay Per Click is one of the easiest ways to place links and immediately begin getting traffic. Advertising in this way on the search engines not only provides you with highly targeted potential customers, but provides a link from other relevant websites that participate in the advertising program. This can assist your search engines rankings.

Be sure though to monitor your PPC campaign closely, as it can get expensive if left unchecked. Remember that quality content and inbound links to your website are essential to your search engine ranking. However, the reason for providing both goes far deeper than impressing the search engines alone. “The customer is always right”. It is the visitors to your site that you need to impress. Highly themed quality content, and links to other relevant and well regarded resources, are what your customers are looking for. Guess what? So too are the search engines.

Simply put, if you provide content and links for your visitors, then the search engines will follow. Good luck, & have fun

Today many of us have automobiles and everybody would agree with the statement that states – engine as the most important part of any automobile. If a situation comes, when engine breaks down then definitely the chances are more where an individual would purchase a new engine. But at times it can be far costly to buy and install a new engine. Fortunately there is the choice of just substituting that defunct engine with a quality used one. While both the options require investments, choosing to purchase and install a used engine is far more economical.There was a time when many use to think that used engines are not long-lasting and not enough capable to work for long periods. But for the past few years things have changed dramatically. Today there are many automotive companies providing the best used engines only after checking the quality. Besides this, there are many websites that are acting as an online platform and selling all types of used engines such as petrol engines and diesel engine for different truck and car models.

Reason Behind The Growing Demand

If we carefully look at the present scenario then we could easily see that there has been drastic increase in the demand of used engines in automobile market. Purchasing used engine is getting a popular trend and turning out to more beneficial for automobile of every category.

Nowadays owning a car is turning out to be more costly. In addition to this, factors like high highway toll tax, gasoline and insurance cost are soaring high. Moreover, there are few countries in world where an individual has to take the parking permission before purchasing a car and the cost of parking is quite expensive. The cost of repair is also very high due to poor availability of auto-parts. Due to these reasons and several similar factors, the automobile market sometimes suffers sudden and quick depreciation. As a result many auto owners have started considering used engine for their cars or trucks. In fact purchasing used engine has helped many auto owners in reducing the maintenance cost.

The Present Scenario

Over the past couple of years shopping for automotive used engines and other used parts has been easier. With the advancement in technology, the used automotive parts market has exploded and has become lot easier to buy used engines online. These days the ratio of companies dealing in used auto parts and specially used engines are growing more day-by-day.

The companies which are dealing with used engine now have adequate technician staff to test the engine. They test several features like leak-down, compression, smooth crankshaft revolution, oil content, etc to ensure that the used engine work in same condition as a new one. This has further resulted in changing the mind-sets of many people who use to think number of times before buying used engine. Moreover, many of these companies also have a large network of salvage yards from where they find the best engine on the basis of car or truck model and customer’s needs. Used engine is definitely simple and affordable for any automobile owner to gear up his or her vehicle.

Sometimes it has been observed that the used automotive engine has a longer life then the new engine. However, it is very important to have a reasonable amount of idea about the authenticity of dealer before buying used automotive engine. Searching for the finest deal on engines can be tiresome and so being a well-informed can be in best interest. So, be sure to buy it from a trustworthy company that appropriately follows engine testing procedure.

For online purchase one need to make sure that all his or her queries regarding engine like- manufacturing date, model or specifications get solved by the online support. In addition, one also need to be sure about the company’s or dealer’s return policy and ask for a copy of warranty policy. Since most of used engine are thoroughly tested, so it must have a long warranty period. A sufficient warranty can let an individual test his vehicle in a proper manner after adding used engine.

Though purchasing a used engine is gaining its popularity and a good way to save money but doing a little homework can definitely go a long way toward preventing any disagreeable surprises.

At that time Italy was a poor country, they soon realized that with their limited car market, and luxury car market the need, indeed the necessity to export their products. The enterprising partners first shipped a car to the United Sates in 1902 and established the Isotta Import Company in New York just five years later. In 1908, Isotta won Sicily’s super tough Targea Florio race and notched up more than several important auto races in America. Two years later, the Italians launched the mighty KM model, which sported 10.6 liter, four cylinder, and sixteen valve engine. It would storm along at 90 mph at a time when few aircraft could achieve that in flight.After World War I, Isotta Fraschini decided to concentrate on the lucrative and prestigious luxury end of the automotive market. The 5.9 liter Tipo 8 arrived in 1909 – powered by the world’s first series production straight eight engine, and was later joined, then replaced by the Tipo 8A. Customers purchased a chassis and ordered whatever body tickled their fancy from a coachbuilder. The well known high end coachbuilder of the time Sala and Castanga accounted for most of them. Others built to the likes of Fleetwood and Barker.

One of the lighter and more powerful Super Spinto versions of the *A finished sixth in the first Mille Miglia , driven by none other than Count Maggi , one of the 1000 -mile road race founders and originators. He was accompanied by Bindo Maserati. Bindo and his brother Alfieri were then working for Isota Fraschini as testers. Most of the parts for the first Masaerati cars were made at Isotta’s factory on Via Monterosa in Milan.

Launched in April 1931, the Tipo 8B is generally considered as Isotto Fraschini’s finest automobile product. It offered more performance than its predecessor. About 950 of these fine motor vehicles were manufactured and sold. The Tipo 8B Automobile product line encountered strong opposition from the likes of Rolls-Royce, Hispano and Bugatti. By the mid nineteen thirties the Isotta Frascnini car production system and enterprise was out of the automobile business. It made a short comeback after the time period approximately of the post Second World War II period when the Tipo 8C Monterosa appeared to a fanfare of postwar trumpets. The Post World War II Tipo 8C Monterosa was a most interesting concept car of its time period – a very big car with a V-8 engine its tail. Rather unbelievably, or perhaps

We owe a debit of gratitude to these early luxury automobile innovators and producers in that what we take today for automotive vehicle features , engineering as well as reliability started early on with the expectations of purchasers of these luxury automobile products.

For the uninitiated, a crate engine has been constructed by a performance shop or company using mix-and-match parts. These parts are tooled to a vehicle’s original manufacturer tolerances or better, especially when it’s a muscle car. The mission behind this method is the Holy Grail of automotive engines: Performance.Auto Parts Fair welcomes customers seeking crate engines, both for their performance capabilities and for their competitive value in comparison to the cost of a new automotive engine direct from automobile makers. Crate engines are put together by experts from all the best parts with extreme attention to detail. Engines arrive assembled or ready to assemble. Such automotive engines won’t be as cheap as if the customer went searching through the junkyard himself for the parts, but it won’t be as messy, either.

Still, it can be as frustrating as a trip through the automobile boneyard to find reliable crate engines, or even good automotive engines. Here’s where Auto Parts Fair can help.

Auto Parts Fair operates in cooperation with a national network of auto parts suppliers. That means that its online store has access to some 4 million auto parts. In this way Auto Parts Fair takes the hassle out of finding automotive engines for Hyundai or Honda, Saab or Subaru, Nissan or Toyota through its comprehensive online catalogs. Customers can save both money and time by using Auto Parts Fair’s online store, which is built with the customers’ priorities in mind.Buyers go quickly through a simple step-by-step process as they search for the right engine, whether it’s Audi automotive engines or Corvette crate engines. Auto Parts Fair’s home page features some of the recent most popular purchases in a picture directory, so if the right automotive engine shows up there a purchase can be practically point and click.

There’s still no problem if a more detailed search is needed. With the superior organization of Auto Parts Fair’s online store, customers can click through the online store’s menus in seconds to find what they’re seeking. If what the customer wants happens to be quality used automotive engines, Auto Parts Fair has an entire section devoted to good used parts.

Auto Parts Fair’s warehouse pricing on automotive engines and crate engines – sometimes as much as 70 percent off recommended list prices – is backed by a 100 percent customer satisfaction guarantee. Warranties on auto parts range from 12 months to a lifetime depending on the part. Buyers won’t ever lose money on quality crate engines and automotive engines when purchasing from Auto Parts Fair.

Furthermore, every transaction is safe and secure at Auto Parts Fair, which uses McAfee computer security software to guard against cyber thieves. Privacy and security in online purchases are assured at Auto Parts Fair’s online store. Friendly and reliable customer service representatives who can answer questions are available also by telephone or email daily.

Yes, the word is power, backed by price and performance. Auto Parts Fair gives its customers all three advantages when it comes to shopping online for the best in automotive engines and crate engines.