Yuchai YC4D Series Marine Engines

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Yuchai YC4D Series Marine Engines

· High performance combustion chamber and intake swirl contribute to lower fuel consumption

· Yuchai sealing technology in piston ring and valve oil seal reduces the lube oil consumption

· High fuel efficiency and low maintenance cost

· Compact size facilitates installation, maintenance and repair

· Operator and nature friendly with low noise, rapid start ability and low emissions

· Major overhaul period is more than 10000 hours

· Good for medium size cargo ships and fishing vessels








Vertical in-line, 4-cylinder, 4-stroke, direct injection, water-cooled

Bore ×Stroke                                          (mm)

108 ×115



Turbocharged & inter-cooled

Displacement                                            (L)


Compression ration


Rated power/Speed                (kW(hp)/r/min)





Fuel consumption                            g/(kW·h)



Oil consumption                              g/(kW·h)



Counterclockwise ( facing flywheel )

Starting method


Dry weight                                             (kg)



Engine dimension (L×W×H)                 (mm)

986 × 730 × 948

1311 × 746 × 962



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Q:Why is some engine displacement unit CC?
It is the displacement of the motorcycle, because it did not reach 1 liter in milliliter, CC = ML (ml) ml unit, the main unit is liters (L), 1L = 1000mL CC. 1cc = 1 ml cc
Q:What are the power performance indicators of the engine?
Power: maximum power, maximum torque, and their respective speed, external characteristics, torque changes with the speed of the curve. Economy: BSFC of all characteristics, and idle fuel consumption
Q:What are the hazards of carbon deposition on car engines?
The location of the engine carbon deposition is different, the impact is also different. Engine engine internal carbon deposition --- a slight also become sludge.
Q:What is the difference between AT and MT engines, please?
MT (manual transmission), is a conventional gearbox, it is the use of different gear for the power transmission and gear collocation, collocation transform can only rely on hand foot clutch lever to realize, this is the so-called manual transmission.
Q:What are the differences between front and rear engines?
The difference is simple, the front is the engine in front of the body, and the rear is the engine behind the body! Front engine is the most common design, the advantage is to use the airflow when driving cooling, and if with the front wheel drive is a good way to save costs, but also in the accident in the driver's safety advantage.
Q:How to solve the car engine light
If it is that you have a problem in the car electronic control, the battery negative demolition and so on 5-10 minutes and then installed to see if there, if you can clear the description of the accidental computer itself can be adjusted
Q:Does the engine flow directly to the engine by adding oil to the engine?
To join in the oil through the engine oil to the oil pan, not directly poured in the sump, into the oil sump oil from the oil pump will by filtration for engine operation, oil to overtime may dirty things have been stopped in the pipeline
Q:Passat, Teana, Reiz which car V6 engine is the best
To sum up, because now Japanese car smashed in Chinese probability is too high is not recommended to buy, if you buy is funded Japanese early weapons we Chinese, we grab the Diaoyu Islands, in the Chinese position suggest that you choose a Volkswagen 3.0V6 engine +DSG dual clutch gearbox, regardless of vehicle work level, laser welding body, anti-collision the steel beam or before and after, so it is always less than the difference to Japanese, at least, the Germans can put the latest technology into their car
Q:Introduce a -95 bomber engine below
Figure -95 is a four generation turboprop subsonic bomber. The slender fuselage circular cross-section, high aspect ratio and a single vertical tail swept wing layout. Type HK-12MB turboprop engine 4 high-power packaging on both sides under the wing of the nacelle, a single power rating of 11010 kW (14975 HP), thrust of 11.77 kn (1200 kg). The engine drives two AB-60H - type reversible propeller propeller with variable pitch, and the propeller is 6.5 meters in diameter.
Q:What is the TSI engine?
The supercharger has the advantages of engine starting operation began to intervene, accelerate strong, no turbine work delay, immediate response, the disadvantage is through the power of the engine output for turbocharger, consume part of the power of the engine.

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