Diesel

Cummins 4BT marine diesel engine 150 HP with ZF gear Running take out    US $6,750.00

Volvo Penta MD17C Engine w MSB TRANS Complete    US $3,200.00

Cummins Marine Diesel engine 4cyl turbo 250hp complete w trans    US $14,000.00

Perkins 4 108 Diesel Engine Rebuilt    US $3,500.00

Deutz Marine Diesel Engine    US $5,750.00

Yanmar marine diesel engine 4JH2 HTE    US $4,500.00

Caterpillar C32 Marine Engine Cylinder Head 284 2786    US $4,500.00

6 Cylinder Volvo Diesel Engine    US $5,000.00

Ford Lehman 95 HP 4 cylinder engine FWC Running motor    US $2,999.00

Volvo MD 17 sailboat engine with transmission    US $3,200.00

Cummins Starter 3103916 Off Engine    US $592.00

YANMAR INBOARD DIESEL ENGINE SHOP MANUAL 1975 1998    US $36.98

3972735 Cummins Alternator 24V 74Amp New Off Engine    US $315.00

FPT Iveco Marine diesel engine 6 cyl 150 HP brand new    US $16,000.00

Northern Lights Lugger Engine Cooling Pump    US $350.00

8V71 Detroit Deisel Engine 90 miles on Rebuild    US $3,500.00

VOLVO PENTA EXHAUST MANIFOLD fits MD17C MD17D engines    US $1,495.00

Volvo Penta TAMD 60C 70 Wet exhaust manifold TD60 Marine Diesel engine    US $750.00

Risers Elbows for 03 55 Viking Marine Diesel Engine    US $5,500.00

New Mitsubishi 22hp Diesel Engine L3E VS Westerbeke    US $3,895.00

Pair Yanmar 6LY 370HP Marine Diesel Engines Complete    US $35,950.00

VOLVO PENTA MD2 B DIESEL MARINE ENGINE RUNNING TAKE OUT SAILBOAT POWER    US $2,195.00

Great Running 671 Detroit Diesel Marine Engine    US $2,100.00

Yanmar 4JH5E Marine Diesel Engine 4 cyl 50 hp 22 L Brand NEW    US $9,000.00

VOLVO PENTA MD7A 13 horsepower diesel engine with transmission    US $2,349.00

Mercruiser Cummins Engine Belt 3037425    US $30.00

3304 REMANUFACTERED CATERPILLAR ENGINE EXCHANGE    US $8,450.00

3306 REMANUFACTERED CATERPILLAR ENGINE EXCHANGE    US $8,950.00

Pair Yanmar 6LP 6LPA STE 315HP Marine Diesel Engine    US $26,695.00

Perkins industrial engine kit diesel marine 4108    US $666.87

Marine Diesel Basics

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.

STARTER MARINE CONSOLIDATED DIESEL CUMMINS D ENG    US $185.00

Cummins 4BT marine diesel engine 150 HP with ZF gear Running take out    US $6,750.00

Detroid diesel V6 92 Crank shaft    US $250.00

Volvo Penta Sterndrive Pocket Information Guide Diesel    US $22.00

Reverse Gear Volvo Penta Diesel Trans HS25A A 3582215    US $695.00

Heat Exchanger for Marine JT Detroit 671 TIB Diesel    US $400.00

Racor Parker 10mic Diesel fuel filter water seperator    US $130.00

Detroit Diesel MTU Overspeed Governor 2 speed 23505283 NEW    US $199.00

NEW STARTER MERCURUISER DIESEL BMW MARINE HATZ    US $239.00

Cummins Marine Diesel engine 4cyl turbo 250hp complete w trans    US $14,000.00

VOLVO PENTA DIESEL STARTER MOTOR 97225 By ARCO NEW    US $315.00

VOLVO PENTA DIESEL PULLEY PART VOP 861540 FOR SERIES 32 42 43 44    US $150.00

5104445 SAE 0 Flywheel Housings DETROIT DIESEL 16V92    US $1,950.00

Cummins Mercruiser Smart Craft Diesel View 4929300 Display Sea Ray Regal Boat    US $595.00

35KW marine genset KUBOTA diesel power ULTRA COMPACT    US $5,469.00

Perkins 4 108 Diesel Engine Rebuilt    US $3,500.00

VOLVO PENTA DIESEL STARTER DRIIVE FOR VALEO D9R116    US $59.00

Marine Generator Diesel KOHLER 15EOZD 15 KW 60HZ    US $11,151.45

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.

3 YANMAR FUEL FILTERS NEW 104500 55710    US $24.00

Connecting rods for Yanmar 6LP marine diesel engine 119770 00270    US $125.00

yanmar 6ly 440 hp marine exhaust manifoldCOMPLETE REBUILT 6LY AVAILABLE    US $1,600.00

Yanmar YSM8 crankshaft    US $175.00

YANMAR 55 AMP ALTERNATOR PART NO LR155 20    US $229.99

Starter Yanmar Marine 2GM 2cyl Dsl 1980 81 82 83 84 12V    US $77.00

Starter Yanmar Marine 3GM30 3GMD 3GMF 3cyl Dsl 12V    US $77.00

Starter Yanmar Marine 128170 77010 128170 77010D 12V    US $77.00

Starter Yanmar SR5052N S114 303 S114 303A 12V    US $77.00

Starter Yanmar Marine 3GM 3cyl Dsl 1980 81 82 83 84 12V    US $77.00

Yanmar Diesel Engine Fuel Filter 121857 55710    US $38.00

Yanmar Complete short block Part119771 10040    US $1,900.00

Yanmar Diesel Elbow    US $120.00

Yanmar Diesel Thermostat    US $60.00

Yanmar marine diesel engine 4JH2 HTE    US $4,500.00

Yanmar Diesel Regulator Assy    US $50.00

NEW YANMAR DIESEL HI OUTPUT 80 AMP ALTERNATOR LR180 03C    US $845.00

HI TORQUE STARTER YANMAR MARINE ENGINE1 2 3 GM 10GM    US $286.95

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.

Perkins 4 108 Diesel Engine Rebuilt    US $3,500.00

ENGINA OIL PLUMP FOR PERKINS DIESEL ENGINA 41314182 NE    US $25.00

NEW PERKINS MARINE Alternator    US $96.60

PERKINS 2486830 ELBOW CONNECTOR REDUCER 37731861 BC    US $29.00

VALEO ALTERNATOR 70 AMP PERKINS MARINE VOLVO PENTA    US $305.00

Perkins fuel lift pump    US $59.99

Perkins fuel lift pump    US $59.99

JABSCO IMPELLER 1210 0001 P PROFILE K RAW WATER PUMP ONAN PERKINS VOLVO YANMAR    US $30.95

128170 42070 YANMAR JABSCO PERKINS WATER PUMP IMPELLER FREE SHIPPING    US $29.99

INTER COOLER PERKINS SABRE ENGINE    US $575.00

Starter Marine CW Inboard Ford New Holland Perkins Diesel Lucas M50 10 Tooth    US $209.95

New 28mt Starter Perkins Marine Engine 4 108 4 154    US $134.90

NEW PERKINS PRIMA MARINE STARTER 2873B059 4 108    US $650.00

JABSCO IMPELLER 17935 0001 P PROFILE Q RAW WATER PUMP CUMMINS CAT PERKINS VOLVO    US $54.95

Perkins industrial engine kit diesel marine 4108    US $666.87

Perkins 63544 Marine Engine    US $9,995.00

JABSCO 777 9001 used MARINE SEAWATER PUMP WATER ONAN CAT PERKINS OMC 777 9001    US $119.00

MARINE STARTER VOLVO PENTA MD22 PERKINS M50M60M80    US $650.00