Features of Nissan vq40, vq40de engines

The first models of power units of this family began to be mass-produced in 1952. Their working volume ranged from 0,9 to 1,1 liters. The design included the DOHC system, that is, two camshafts were located in the cylinder head. Serial production of this motor ended in 1966.

The engine underwent a major modification in 1968. It began to include 6 cylinders. The design included a carburetor, and the working volume increased to 2 liters. In the future, the power unit was repeatedly subjected to improvements and upgrades. Increased operational characteristics, such as power, resource, reliability, working volume, as well as stability during operation. Today, the descendants of the first models are widespread.

Technical specifications

Nissan vq40, vq40de engines have a number of features that determine their cost. There are differences in the characteristics of these models, but they matter only to understanding people.

Characterization	Description
working volume.	3954 cubic centimeters.
Piston stroke.	92 mm.
Maximum power.	It ranges from 261 to 269 hp. depending on the type of engine.
Compression ratio.	9,7.
The highest torque.	381 - 385 N * m at 4000 rpm.
The number of valves per cylinder.	4.
Fuel used.	Petrol.
Cylinder diameter.	95,5 mm.
Fuel consumption.	It varies from 13,8 to 16,1 liters per 100 km.
Sample resource.	About 300000 km.

Many motorists have difficulty finding the engine number. They should know that the desired set of numbers is most likely located under the collector cover.

How reliable is the motor?

Nissan vq40, vq40de engines are quite reliable power units, but, like any equipment, they require maintenance from time to time. They have a number of characteristic faults, which include:

1. Increased lubricant consumption. This is due to catalysts that quickly fail when using low-quality gasoline.
2. Unstable idling due to problems with intake camshaft covers.
3. Overheating, which is a consequence of warping of the valve cover.

You can prevent the occurrence of the described problems by carrying out regular repairs and maintenance. Problems do not occur often, but at the first sign it is worth taking action.

Maintainability

Power units have a not too complicated design, which makes it possible to carry out on their own in a personal garage such procedures as repair, maintenance, diagnostics, replacement of consumables and working fluids.

Motor maintenance can be carried out with the necessary skills and knowledge. If there are none, then you should not try to perform the listed operations on your own.

Inept intervention can lead to serious problems and breakdowns, the elimination of which will require significant funds.

Moreover, the consequences of improper assembly or repair can completely disable the power unit. As a result, you will need to purchase a new motor, which is not cheap.

What kind of oil to pour

The correct choice of lubricant will reduce wear on engine parts and increase the operating life. For Nissan vq40, vq40de engines, oil marked:

1. 5W30, which ensures the smooth operation of the power unit in urban environments.
2. It is a lubricant of a synthetic variety, which includes special additives that allow it to maintain its working properties for an extended period.

The described oils have unique features that must be considered in order to make the application as effective as possible.

What machines are installed

Nissan vq40, vq40de engines are widely used due to their high performance and reliability. They are installed on:

1. Nissan Pathfinder, which is a passenger car, namely a full-size crossover. It combines high power, reliability and stability on any road surface. The design includes a power unit with a volume of 2,5 liters.
2. Nissan Xterra. The car is a spectacular off-road vehicle designed to overcome water obstacles, driving in mountainous terrain and off-road. The vehicle is equipped with a sophisticated security system. This ensures the complete safety of the life and health of the driver and passengers.

The described cars have unique features, but they are united by a power unit. It makes vehicles powerful and durable.