Archive for August, 2008

Interested To Join Bass Fishing Clubs?

Sunday, August 31st, 2008

bass anglers

Bass fishermen often enjoy the many benefits that bass fishing clubs provide. Bass belong to the family of sunfish and they are good to eat, as many people fish for them for that reason. Others fishermen like to fish for the sport of it and then throw them back. There is a lot of skill that is needed to be successful at bass fishing. You will also need patience, determination, dedication and strength.

These clubs are not just for male fishermen, but there are clubs dedicated solely to younger people and women. There are clubs on a national level, state level and some on a very localized level. Some are specialized for a certain type of bass fishing, such as largemouth bass and smallmouth bass, while others cover the sport and the skill. Being a club member is also a great way for avid bass anglers to find out about joining a bass tournament. All clubs have benefits for those who do decide to join up and no two clubs are the same. There are so many available in almost every state in the country that it would be difficult for a bass fishing enthusiast to not find a bass fishing club to join.

Make sure to check out any club before joining. If you’re not an avid fisherman, but are interested in the sport as a hobby, then you may want to be sure you are not joining a professional club that requires its members to participate in local and sometimes national tournaments. But, if that is your cup of tea, then those kind of clubs are for you. Some organizations are free while others require a fee and application before being accepted. For those just starting out, who just want to learn how to compete, there are bass fishing clubs that are used purely as a free or cheap learning experience.

The size of the organization can make a difference also. If you are looking for more one-on-one attention and mentoring, perhaps a smaller group would work out better for you. For that kind of attention you will want to make sure that the mentors and leaders are dedicated and have the time to perform those duties. For those professionals who want to enter competitions nationwide, a large and perhaps national group would suit your needs best. Usually larger <a href=”http://bassfishing.jdkinfotips.info/Bass-Fishing-Clubs.php”>bass fishing clubs</a> tend to have more funds to provide more benefits for their members.

Understanding Your Marine Diesel Engine

Saturday, August 30th, 2008

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 air and fuel are mixed thoroughly in the pre-combustion chamber before entering the cylinder. This system maximizes fuel and power 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 cyclesóeither 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 should be clear that 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), which creates 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 the course of this stroke the air becomes heated to a temperature high enough 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 on the piston crown forces 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.

Two-Stroke Diesel Engines

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 ìno-loadî 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.

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Saturday, August 30th, 2008

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