Injector Pump
Diesel Pump and Diesel Engines
Diesel pump or as it is commonly known an injection pump normally is used to fuel a diesel engine, injection pumps can be utilized to deliver gasoline to a petrol engine also.
A diesel pump, in the first engines, would have been powered by the engine using a connection directly to the engines crankshaft. The diesel pump will be timed to inject the diesel into the engine at the right time during the pistons stroke.
Commonly a diesel engine in your normal car, van or lorry will be of the four stroke sort, larger engines used in ships and big machinery will often be of the two-stroke sort to boost fuel efficiency. Two-stroke engines you would as a rule find in a strimmer or model plane, of course these use petrol to operate.
The main variation with a two-stroke engine is that the first and ultimate strokes are completed concurrently, this has the effect of drastically increasing performance at the sacrifice of a dirtier exhaust. Another gain is that two-stroke engines can be easily operated in reverse, providing a reverse function without the need for complex gearing mechanisms.
In the current engine there are two main variations of diesel engine, those are the common rail diesel engine and the electronic unit direct injection.
An electronic unit direct injection assembly combines the injector and diesel pump into a singe piece, the diesel pump is, commonly, still driven by the engine. An Overhead Camshaft (OHC) drives the diesel pumps and injectors, this is an assemblage sat on top of the engine and connected directly to the engines main cam shaft by chain, or more commonly nowadays, a belt.
The common rail diesel engine consist of a high pressured fuel rail, basically a manifold, supplying individual diesel fuel injectors as opposed to the diesel pump delivering fuel directly to the fuel injectors.
As stated, above, your modern diesel engine works on a four stroke sequence. You might have heard this called the Otto cycle after the inventor of the petrol motor, Nikolaus August Otto in 1876. A few years afterward Rudolf Diesel arrived and, wishing to construct a more fuel efficient motor, came up with the diesel engine in 1892.
Diesel engines have been a bit slow on the up-take, for the typical family car, chiefly due to their repute of being noisy and smelly. Clearly this is altering as recent technology makes the diesel engine a more agreeable answer to our present transport woes.
The four separate events or strokes in a mainstream four stroke diesel engine are as follows:
The Intake Stroke: As the piston reaches the top of it’s stroke and starts to move downward the air intake valve is opened, this has the effect of air being drawn in as the piston moves downward.
The Compression Stroke: As the piston hits the bottom of it’s stroke the air intake valve will close, as the exhaust valve is also closed the air enclosed in the piston chamber is compressed as the piston moves back up the shaft.
The Combustion Stroke: As the piston hits the top of the compression stroke diesel is injected at the exact moment by the diesel pump and as the piston is fractionally past the top of the upward phase of the compression stroke the fuel to compressed air mixture is ignited. This is where the energy to drive the vehicle is produced, the piston is forced downward driving the engine.
The Exhaust Stroke: For the duration of the pistons last upward stroke the exhaust valve is opened and the gases created from the ignition of the air to fuel combination is pushed out and into the exhaust mechanism. At the end of this stroke the four strokes are concluded and the entire cycle starts again from the start.
One downside to diesel fuel as opposed to petrol is when used in very wintry climates. Diesel will begin to freeze at a higher temperature than gasoline, this will start off by the diesel becoming denser and waxy, clearly this will inhibit the good running of most diesel engine. One trick is to put a tiny amount of petrol into the diesel fuel combination to help lower the freezing point of the overall mixture.
This also has the added advantage of making the overall combination more flammable, although too great a mixture can damage a diesel motor, even small amounts of petrol in a common rail engine can bring about critical problems so seek advice from an experienced mechanic prior to varying your fuel mixture.
Another issue that can be effortlessly spotted is if your diesel pump is not working, this has the effect of reduced fuel supply or pressure to the fuel system. Basic signs are a failure of the engine to start, a lumpy or noisy ignition, or a high pitched whining coming from the motor. You will probably also notice a lack of performance when applying the throttle.
If any of these situations arise it would be recommended to get your car tested by a mechanic who may need to find you a new diesel pump.
About the Author
Andy is currently a web designer and is moving into article writing.
New or refurbished Diesel Pumps
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PD Injector VW Audi Bosch 038130073 0414720313 PUMP Duse Used BRM $1.00 |
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GM Air Injector Reactor Pump Gasket $1.01 |
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IMC 222 33003 001 Fuel Injector Pump $2.89 |
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1 M1008 M1009 INJECTOR PUMP SHIFTER FORK SPRING 23643 NOS $4.00 |
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AMBAC diesel injector pump spring kit KT9059 new $4.00 |
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7mm Diesel Fuel Injector Pump Inlet Hose Line Blue Cloth wrapped OEM German $4.50 |
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IMC 222 33003 001 Fuel Injector Pump $4.69 |
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FORD Power Stroke 1994-97 Pump Injector Quad Ring New $4.99 |
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New Old Stock Fuel Injector pump SEAL 22504915 Two in package OEM $4.99 |
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INJECTOR ASSEMBLY FOR JET PUMP $5.00 |
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Kawasaki S2 350 Oil Pump Injector Bolts S1 250 S2 350 S3 400 H1 500 H2 750 $5.00 |
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Yamaha Blaster YFS 200 YFS200 engine oil injector injection pump gear $5.00 |
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99 Yamaha PW 80 PW80 Y Zinger oil injector injection pump gear $5.00 |
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SUZUKI TC 100 OIL INJECTOR PUMP COVER $5.95 |
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PLASTIC BASTER * MEAT POULTRY FISH FLAVOUR INJECTOR * BASTING PUMP $6.21 |
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Mercedes Diesel Fuel Injector Pump Solenoid O-Ring: CRP 225 33034 589 $6.45 |
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Mercedes Diesel Fuel Injector Pump Stop Solenoid G: MTC 223 33001 673 $6.51 |
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99 Yamaha PW 80 PW80 Y Zinger engine oil injector pump cover $7.00 |
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Mercedes Diesel Fuel Injector Pump Mounting O-Ring: Reinz 225 33128 071 $7.12 |
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YAMAHA JOG CY50 CY 50 OIL INJECTOR PUMP $7.99 |
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Cal-Scale HO #337 Check Valves w/Injector Pumps $8.28 |
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Dodge Cummins Turbo Diesel INJECTOR PUMP Bracket VP44 $8.45 |
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1 M1008 M1009 INJECTOR PUMP LEVER 22721 5740655 NOS $8.99 |
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SUZUKI MT50 F50 TC125 TS50 OIL PUMP INJECTOR LINE BOLT $8.99 |
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Suzuki DS80 oem used injector pump cover suzuki ds80 $8.99 |
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1974 Yamaha YZ80 YZ 80 injector pump cover $9.00 |
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2 MEP-002A 5 KW MEP-003A 10 KW GENERATOR FUEL INJECTOR PUMP ADAPTER 502-0385 NOS $9.00 |
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74 gt550 gt 550 suzuki injector oil pump cover $9.00 |
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1972 Yamaha CT175 CT 175 CT1 injector pump drive gear $9.00 |
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72 Kawasaki f 7 F7 F-7 175 engine oil injector injection pump cover $9.00 |
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1984 Tri Zinger YT60 YT 60 injector pump drive gear $9.00 |
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Yamaha Blaster YFS 200 YFS200 engine oil injector injection pump $9.00 |
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Cal-Scale HO #341 Injector Pumps & Check Valves (Brass Casting) $9.25 |
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GM PART # 94011700 INJECTOR PUMP GASKET FOR DURAMAX $9.69 |
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Injector Pump Top Cover Oring Seal Toyota Hilux 3L 5L 4Cyl LN106 LN111 LN167 $9.72 |
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Injector Pump Top Cover Oring Seal Landcruiser 1HZ 1HDT 75 80 Series 100 Series $9.72 |
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90 YAMAHA RT180 RT 180 OIL INJECTOR PUMP COVER CASE $9.95 |
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72 YAMAHA LT2 100 ENGINE MOTOR CASE OIL PUMP INJECTOR COVER $9.95 |
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VW TDI Injector Pump Shaft Bearings Jetta Golf Passat $9.99 |
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190593GS Pump chemical injector Briggs 190635GS 203640G $9.99 |
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VW Diesel Injector Injection Pump Start Stop Solenoid $9.99 |
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190593GS Pump chemical injector kit Troybilt Speedclean $9.99 |
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VW Diesel 1.6 Injector Pump Shaft Bearings Audi Volvo $9.99 |
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1917 Blakeslee Jet Pump US Steam Injector Catalog AD $9.99 |
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1984-87 Ford Escort/Tempo/Lynx 2.0L injector pump belt $9.99 |
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190593GS Pump chemical injector kit Craftsman Snapper $9.99 |
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Vintage Grease Injector Pump $10.00 |
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Suzuki GT 750 Oil Injector Pump Cover $10.00 |
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4 M1008 M1009 INJECTOR PUMP SEAL 15529637 27609 NOS $10.00 |
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92′ Yamaha RT180 RT-180 / OIL INJECTOR PUMP SIDE COVER $10.00 |
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1 MEP-002A 5 KW MEP-003A 10 KW GENERATOR FUEL INJECTOR PUMP BALL JOINT 150-0939 $10.00 |
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69′ Suzuki T305 T-305 / OIL INJECTOR PUMP SHAFT $10.00 |
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75′ Yamaha Enduro DT100 DT-100 / OIL INJECTOR PUMP SIDE COVER $10.00 |
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2003 JETTA 1.9 TDI INJECTOR PUMP TIMING GEAR L2008 $10.00 |
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1 M1008 M1009 FUEL INJECTOR PUMP BLOCK 21763 NOS $10.00 |
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Yamaha GT80 GT-80 / OIL INJECTOR PUMP SIDE COVER $10.00 |
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Yamaha Morphous CP250 CP 250 Fuel Line Hose Pump to Injector $10.00 |
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73′ Suzuki RV90 RV-90 / OIL INJECTOR PUMP SIDE COVER $10.00 |
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70′ Yamaha HT1 HT-1 90 / OIL INJECTOR PUMP COVER $10.00 |
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1980 YT125 Yamaha 80 YT 125 engine injector pump cover $10.31 |
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Mi-T-M OEM Chemical Injector Assembly 700510 For CAT AR General Replacement Pump $10.50 |
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3 M1008 M1009 INJECTOR PUMP QUICK DISCONNECT TERMINALS 24901 NOS $10.50 |
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3 M1008 M1009 INJECTOR PUMP PLUNGER 22917 NOS $10.50 |
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3 M1008 M1009 INJECTOR PUMP COUNTERBALANCE WEIGHT 21201 NOS $10.50 |
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Diesel Fuel Injector Pump Pressure Relief Bosch 13433018101 $10.63 |
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1995 YFS200 Yamaha 95 YFS 200 Blaster injector pump cover $10.97 |
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1973 Kawasaki F7 175 injector pump drive $12.00 |
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Honda MT250 Elsinore Oil Injector Pump Cover Good Cond $12.00 |
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1979 Yamaha GT80 GT 80 injector pump cover $12.00 |
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1971 Kawasaki G3TRA G3 TR 100 injector pump drive gear $12.00 |
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1976 Kawasaki KD100 KD 100 M injector pump drive gear $12.00 |
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72 gt550 gt 550 suzuki oil injector pump cover $12.80 |
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Mercedes Fuel Injector Pump Pressure Relief Valve Bosch $12.93 |
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1997 RT180 Yamaha 97 RT 180 oil injector pump cover $12.97 |
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1972 Yamaha CT175 CT 175 CT1 injector pump cover $14.00 |
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72 Kawasaki f 7 F7 F-7 175 engine oil injector injection pump $14.00 |
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1974 Yamaha DT100 DT 100 A injector pump cover $14.00 |
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KAWASAKI F7 175 71-75 ENGINE OIL INJECTOR PUMP $14.00 |
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1976 Kawasaki KD100 KD 100 M injector pump cover $14.00 |
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1970 Yamaha RT1M RT1 360 injector pump cable $14.00 |
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80 YAMAHA GT80 GT INJECTOR OIL PUMP DRIVE GEAR+SHAFT $14.95 |
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84 1984 KAWASAKI KL600 KL 600 A INJECTOR OILPUMP OIL PUMP $14.95 |
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80 YAMAHA MX100 MX 100 INJECTOR OIL PUMP AND GEAR $14.95 |
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1992 YAMAHA MOTO-4 350, OIL PUMP ASSEMBLY, OIL INJECTOR, OIL PUMP $14.95 |
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78 KAWASAKI KM100 KM 100 INJECTOR OIL PUMP $14.95 |
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71 1971 SUZUKI TS90 TS 90 INJECTOR OIL PUMP LINES HOSE TUBE PIPES $14.95 |
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84 1984 HONDA CB700 CB 700 SC NIGHTHAWK INJECTOR OIL PUMP AND GEAR SPROCKET $14.95 |
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OIL PUMP ASSY 1992 YAMAHA TIMBERWOLF 250, OIL INJECTOR $14.95 |
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1973 SC500 Yamaha 73 SC 500 injector pump cover $14.97 |
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Vintage Morton Salt Meat Pump Curing Injector- Morton’s $14.99 |
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Yamaha GP 433 motor oil injector pump assembly $14.99 |
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82 YAMAHA YT175 YT 175 TRIMOTO ENGINE OIL INJECTOR PUMP $14.99 |
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1971 YAMAHA RT360 RT 360 OIL INJECTOR PUMP COVER RT1 MX $14.99 |
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69 BRIDGESTONE HURRICANE DT175 DT 175 OIL INJECTOR PUMP $14.99 |
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Suzuki TM75 used oil injector pump with free shipping vintage suzuki tm75 $14.99 |
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Yamaha vx110 hose pump fuel injector rail vx 110 vx1100 deluxe sport cruiser $14.99 |
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VW Volkswagen Vanagon Fuel Injector Pump and Fuel pressure regulator $15.00 |
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KAWASAKI KD100 KD 100 OIL INJECTOR PUMP 1977 77 $15.00 |
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92′ Yamaha RT180 RT-180 / OIL INJECTOR PUMP $15.00 |
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Yamaha DT80 Engine ’73-’92 Vintage Mini Enduro Injector Pump Actuator Arm $15.00 |
