Described in almost all sources, as automatic ignition gas. This phenomenon has been known for a long time, ever since the ICE was created. When detonation occurs, an explosion occurs inside the cylinders, the mixture burns unevenly, which can lead to damage to the walls or the piston itself. All motorists, even beginners, should know this. Fuel, gasoline or diesel fuel, burns in the cylinders of the car's power units, if normal conditions are provided, in the process of mixing with air. Detonation is already alarm signal the driver, who must know what it is and what are the reasons for such a phenomenon when starting or running the engine.ĭetonation occurs due to improper distribution of the air / fuel mixture inside the cylinders. Let's start with detonation, as it can create irreparable problems. Or, if the engine started knocking, detonation occurred. This is either worn out elements inside power unit
with constant knocking, replace the pistons, bore and honing the cylindersĬontamination of the working surfaces of hydraulic gap compensators in the valve drive Piston knocking that disappears after the engine warms up is not a sign of a malfunction. Knocking on a cold engine, audible for 2-3 minutes after starting and increasing with increasing speed crankshaft Increased clearance between pistons and cylinders The current version of the Nissan X-Trail in the back of the T32 with the same engine develops 144 hp. In the "square" body T31 previous generation crossover engine develops 137 hp. Fuel consumption on the highway - 6.6 liters.Fuel consumption in combined cycle– 8.3 liters.Fuel consumption in the city - 11.2 liters.Acceleration to the first hundred - 11.1 seconds.The timing diagram is further in the photo.Ĭharacteristics of the engine Nissan X‑Trail 2 liters With a strong stretching of the chain, an error occurs in the operation of the phase shifter, and it becomes quite difficult to start the car on a cold one. This leads to a phase shift that even the automation that controls the phase shifter cannot correct. With intensive use, the chain begins to stretch after 100,000 runs. One bigger size rotates sprockets camshafts, the second small oil pump sprocket. Oil pressure level adjustable solenoid valve, controlled by X-Trail engine electronics.
An increase in pressure causes an increase in the deviation of the camshaft from the nominal position relative to the valve axes. The mechanism for changing the valve timing on the intake shaft is implemented using hydraulic system. Repair of such a head is not possible, only replacement. And this, in turn, is leaking antifreeze. candle wells have very thin walls, an excess of force when tightening the candles leads to cracks in the cylinder head. The camshafts are not attached by separate covers, but by a common pastel. Two camshafts rotate in the bearing housing, which press their cams directly on the valves through special pushers. Nissan X-Trail block head made from aluminum alloy. Engine cylinder head Nissan X Trail 2 liters Replacing rings pretty expensive pleasure, so carefully monitor the quality of fuel and choose high-quality engine oil. After 140,000 - 150,000 kilometers, some engines have piston rings and oil consumption exceeds a liter per thousand kilometers. The valves must be adjusted manually by selecting pushers-washers of different thicknesses. There are no hydraulic lifters in the cylinder head. Timing chain drive, there is a system for changing the valve timing with a phase shifter on the intake camshaft. Inline 4 cylinder 16 valve gasoline engine X‑Trail has an aluminum cylinder block. Today we will talk about everything in more detail. Inline 4 cylinder 16 valve motor has both pluses and minuses.
#Mr20de engine life series
Petrol naturally aspirated engine The MR20DE series can be found not only on Nissan models, but also under the hood of many Renault cars, where the engine is called the Renault M4R. Advantages and disadvantagesĮngine Nissan X‑Trail 2 liters became one of the most popular power units on two generations of an SUV at once. Nissan Qashqai J11: timing chain stretching in the MR20DD engine.
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