Nissan vq30dd engine
Content
Almost all Nissan engines are distinguished by high technical parameters. Among other power units, the vq30dd looks very good. This engine behaves perfectly even in difficult Russian conditions, for which drivers appreciate it.
Engine description
This motor was produced at the Iwaki Plant from 1994 to 2007. In fact, this is a continuation of the VQ line, in which there are a lot of interesting ICE models. It was originally developed for the domestic market of Japan, but later began to be installed on cars for Europe and Russia. One of the few engines that was not introduced to North America at all.
In recent years, it has also been produced under contract in the European divisions of the concern. Usually, in this case, he went as a spare part.
Technical specifications
Let's look at the main indicators of this V-shaped engine. Here it must be borne in mind that the power unit could have slight differences in technical parameters. This is due to the features of the settings. Specifications can be found in the table.
| Features | Parameters |
|---|---|
| Engine displacement, cc | 2987 |
| Maximum torque, N * m (kg * m) at rpm. | 294 (30) to 4000 |
| 309 (32) to 3600 | |
| 324 (33) to 4800 | |
| Maximum power, hp | 230 – 260 |
| Fuel | AI-98 |
| Fuel consumption, l / 100 km | 5.3 – 9.4 |
| engine's type | V-shaped, DOHC, 6-cylinder, |
| Cylinder diameter, mm | 93 |
| The mechanism for changing the volume of cylinders | No |
| Maximum power, h.p. (kW) at rpm | 230 (169) to 6400 |
| 240 (177) to 6400 | |
| 260 (191) to 6400 | |
| The piston stroke, mm | 73 |
| Compression ratio | 11 |
| Engine resource in practice thousand km. | 400+ |
When assessing the resource of the engine, it is worth remembering that when tuning the power unit, this characteristic deteriorates. Usually, after modifications, the motors pass 200-300 thousand kilometers, especially if they sought to increase the torque.
Often there is difficulty in finding the engine number. Now the marking is not checked during registration, but in some cases it is worth checking it yourself. You should look for the number on the back of the motor, on the right there is a platform cast, and there is a marking on it. Here's what it looks like in practice.
Motor reliability
If we talk about reliability, first of all it is worth mentioning the timing chain drive, this significantly reduces the risk of failures. Also, the need for scheduled repairs of the drive occurs less frequently. Actually, it is this factor that can be called the most important plus of these motors.
It is also worth noting that there is no turbine. This made it possible to increase the reliability of the design. So direct injection is used, there is no power loss.
All drivers who have used this unit note that no special repair and maintenance work is required. Usually it all comes down to changing the lubricant, filters and candles.
Maintainability
Even a good motor can have problems. Therefore, every driver has a question of how easy it is to troubleshoot emerging malfunctions. Nissan has always been committed to the convenience of car maintenance, so there are no special difficulties with maintenance and repair.
Typically, drivers are faced with the need for scheduled maintenance. Oil changes every 15000 kilometers. It is also recommended to monitor its level during operation; marks on the dipstick are intended for this. There will be no problems with filter selection, options from many models of Japanese and European cars are suitable.
The power unit does not use hydraulic lifters. Therefore, it is necessary to periodically check and adjust the valve clearances. If this is not done, there is a large fuel consumption. For this adjustment, it is better to contact an experienced minder.
In some cases, there may be interruptions in the operation of the motor. The reason is low-quality fuel that clogs the fuel injectors. The problem is fixed by the following methods:
- washing on the stand;
- replacement with new injectors.
In some cases, they cannot be washed. To avoid problems, do not refuel at unfamiliar gas stations.
What kind of oil to pour
Mistakes in the choice of oil can cause its increased consumption. The use of synthetic lubricants with the following markings is considered optimal:
- 5W-30 (40);
- 10W-30 (40, 50);
- 15W-40 (50);
- 20W-40 (50).
Specific characteristics are selected based on the characteristics of operation. Filling will require 4 liters of lubricant.
Car list
The motor can be found on a large number of models produced at the turn of the century. The very first car was the fourth generation Nissan Leopard, this engine appeared on it in 1996.
A little later, this engine was installed on the Nissan Cedric X and Nissan Gloria XI. The longest were equipped with such engines Nissan Skyline XI and Nissan Stagea, here the unit was installed from 2001 to 2004.
