Contract engine yd25ddti. Contract engine yd25ddti Tactical specifications of the yd25ddti engine

Contract engine yd25ddti. Contract engine yd25ddti Tactical specifications of the yd25ddti engine

13.10.2019

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Problems Nissan Pathfinder R51
Which diesel engine to choose
2.5 (YD25DDTi) or 3.0 (V9X)?

"Not all diesels stink the same - Master class from our diesel sommelier."

The main question that arises when choosing a Nissan Pathfinder is What's the Difference diesel engines 2.5 174 forces and 2.5 190 forces, what is the difference between 2.5 and 3.0 diesel engines? The short answer is the characteristic problems that will be discussed now. However, there is one more important one that is often overlooked.

What Nissan Pathfinder problems do you fear the most? Ordinary car enthusiasts are usually afraid of repairing a turbine, beaten and criminal cars. As in the case of cars, where buyers are unreasonably afraid of air suspension, but forget about the problems of diesel fuel equipment and gasoline engines, Pathfinder's main problems lie precisely in the fuel supply and injection units.

The problems of Nissan Pathfinder fuel injectors are the wear of the pressure-retaining valve mechanism and the spray nozzle. The reason is, as usual, negligence and savings. Low-quality diesel fuel first destroys the nozzles and, later on, the valve itself - the nozzles begin to pour fuel into the cylinders in excess of the norm. Symptoms of wear of fuel injectors are the smell of diesel and blue smoke from the exhaust system; in especially advanced cases of fuel overflow, water hammer can occur.

I want to make a reservation that almost all diesel engines are worn out to one degree or another, so the task of our auto experts is to determine the degree of wear and the number of worn fuel injectors. The cost of one nozzle at the beginning of 2018 is ~ 25-35 thousand rubles.

Differences between the diesel engine 2.5 l dorestyle and restyling YD25DDTi
(2.5 174 forces and 2.5 190 forces) and the characteristic problems of the Nissan Pathfinder.

In 2009, due to problems with the Nissan Pathfinder diesel engine, a new modification of the YD25DDTi was released, which was very different from its predecessor in terms of reliability. Main differences:

Problems Nissan pathfinder R51 2.5 - Operational and age-related diseases

Problems Nissan Pathfinder 3.0 Diesel (V9X) - what is true and what is fiction

We often hear from clients that 3.0 is a whimsical engine, this is not entirely true and we will try to understand the nuances and sores.

EGR valve and particulate filter. The problem is not worth a damn. The particulate filter is not a troublesome unit if you even occasionally leave the city on the highway. If necessary, the V9X particulate filter is cut out and the ECU is reflashed. Moscow is full of companies ready to do this operation within a few hours. The EGR valve is usually turned off along with cutting out the particulate filter and chipping the engine.
The only disadvantage of the absence of the USR valve is the longer warm-up of the diesel engine in winter.

There is a myth that a 3.0 diesel engine has a short resource and cranks liners for many. In fact, the reason for these rumors is not at all in the internal combustion engine. The devil is in the details - the reason for the oil starvation of Nissan engines and especially the 3.0 V9X are defective oil filters (Nissan original) with an article ending in "60A". The rubber gasket is sucked out of the filter and stuck in the oil passages. The Internet is full of photos and discussions of this incident, however, many still learn about this problem exclusively from their own engine.

Active engine mounts dampen diesel vibration better, and thicker soundproofing of the engine compartment is also installed. Concern Nissan is not in vain so confused, because the same engine is installed on the Infiniti FX30d.
Nissan Pathfinder with a 3.0 diesel was sold with richer trim levels and mostly seven-seater.

Instead of a 5-speed gearbox, paired with a 3.0 diesel engine, a 7-speed JATCO gearbox From Infiniti FX is installed. Finally, the engine thrust and cooling system are much more thoughtful and perfect than the outdated YD family. No CVTs have ever been installed by Nissan on the Pathfinder.


Diagnostics Nissan Pathfinder R51 - Where is it better?

“Hurrying up with the choice of a diagnostic organization or service is worse than buying blindly”

The number of services and organizations offering to conduct Diagnostics Nissan Pathfinder or just help in buying a Nissan car, it is extremely great. At the same time, the vast majority of companies or service stations do not have a “profile” or specialization. In the boxes are usually both Lada Granta and old BMWs, and the staff changes every couple of months. The profile of such organizations is the replacement of oils, pads, wheel alignment and suspension diagnostics. Usually, due to low salaries, experienced locksmiths leave such services or open their own “garage” service stations.

In recent years, independent certification centers have appeared, such as Auto.ru Certification or Carprice Diagnostics. These centers also do not have specialization, so their diagnosis is extremely superficial.
We know many examples when Auto.ru certification missed serious malfunctions and gave good marks. (Examples can be found and.)

The diagnosis of an aged Pathfinder should also not be trusted by official dealers. First of all, because of the specifics of the work of the OD. Officials never do repairs, the whole point of their activity is to change oils / pads and SKD replacements. Dealers never repair anything themselves. Even the input diagnostics of the cars they buy back is periodically carried out not by the dealer itself, but by a contractor ().

Companies engaged in car selection in Moscow also not always the right way to buy a used Nissan. If the organization’s website contains general words, there is no portfolio, and the manager cannot tell anything about the car over the phone except for clichés and stereotypes, there is no point in contacting such a company. A car will be selected for you according to your parameters, but the entire selection will be based on the number of owners and the condition of the body.

We recommend that you contact companies that specialize within one brand or range of models, for example, companies that only deal with the selection of BMWs, if you want to buy an X5 aged. A good alternative is club services, but they are more interested in maintenance and repairs. Nissan diagnostics before purchase has never been a large source of income for service stations. Our dear fellow citizens are still buying cars without pre-purchase diagnostics and subsequently write angry reviews about car dealerships like ATC "Moscow" or tell stories about how their engine / automatic transmission “crumbled” on “100 thousand” twisted mileage.

Despite the Japanese roots, Pathfinder diagnostics should be no less thorough than checking a diesel Mercedes.

Diagnostics Nissan Pathfinder - Five kopecks about lifts and service stations

In the light of all of the above, I want to emphasize that the Nissan diagnostics before buying on a lift does not allow you to check even half of the critical “sores” of the Pathfinder.

In addition to the impossibility of checking the transmission, turbine, engine and fuel equipment in a stationary service, service stations have another extremely important and negative feature.
Service personnel often not only do not know the nuances and weaknesses of Nissan, but also assert things that contradict the real facts. For example, we met several times with statements from service providers about the need to replace the timing belt on chain engines or computer diagnostics using a cheap ELM327 issued by management as an unrealistic innovation.

Often, service station employees diagnose the Nissan variator on cars with an automatic multi-stage gearbox, including the Nissan Pathfinder R51. By the way, checking the variator before buying is not so difficult. On Nissan cars, this only requires a long test drive in different modes on a warm transmission fluid and access to the gearbox dipstick.

In conclusion, I want to add that most of our clients do not read articles and do not know about us because of specific advertising on avito and auto.ru. However, after the very first on-site diagnostics, they take business cards and recommend them to friends.

Selection Nissan Pathfinder R51 2.5/3.0

“Every second Nissan Pathfinder has at least once been in Astrakhan fishing or planted in the mud up to the window frames.”

Contrary to all the stereotypes about Nissan and other brands of car selection services, it is impossible to choose a specific car without ownership experience and knowledge of the specifics of the model. Even though all cars have four wheels, an engine and gearbox, the principles of operation of which are unchanged - the devil always lies in the nuances, the repair of which is very expensive.

Nissan Pathfinder, despite its Japanese origin, is by no means a simple and hassle-free car. If you make a rating of the difficulty of selecting a Nissan, then the Pathfinder will be in second place after the Nissan Patrol Y62. The thing is that despite the relative reliability of the units, these cars suffer greatly from operation in extreme conditions and the depressing economy of the owners. In addition, the restyling and dorestyling of the R51 Pathfinder seriously differ in typical problems, both qualitatively and quantitatively. Our company has vast experience in the selection of Nissan Pathfinder. In this article, we will outline the main problems of the Nissan Pathfinder R51 platform.

Selection of Pathfinder in Moscow is not just a fight against outbids, masquerading as private traders and lying in ads. Many of the options rejected by our auto experts have technical flaws that contradict the safe and trouble-free operation of the buyer, and not just a duplicate title and a painted fender with a door.

Based on conscience and morality, then the selection of Nissan Pathfinder or any other car should be carried out on the basis of technical diagnostics of each instance that meets the criteria. For most car pick-up companies in Moscow, there are no boundaries in the field of activity and the level of quality of their services is incredibly low. If the autoexpert does not understand anything about a particular model, then all his checks are worthless. It’s not enough just to know that the Nissan Pathfinder has a frame and a turbine, you need to know all the subtleties, “sores” and weaknesses, as well as the symptoms of their manifestation.


If an amateur or a buyer unfamiliar with the model will be engaged in the selection of a Nissan car, then there is a high probability of buying severe hemorrhoids. In the Nissan Pathfinder Problems section, we have provided a description of the faults, their roots, symptoms, and solutions.

“I will buy a Pathfinder with one owner up to 100 thousand kilometers and fix the fuel injectors with the turbine as a gift.”

Our advice is to stick to a few basic rules for finding and choosing a Nissan Pathfinder R51.

Starting work on the selection of Nissan Pathfinder

  • Nissan Pathfinder restyle, 2.5 diesel, preferably 3.0 (V9X)
  • 1-2 owners
  • Salon in good condition, top of the range in priority
  • No need for costly repairs
  • Without duplicate TCP
  • Legally clean, wines on the frame must be free of corrosion
  • No major accidents.
  • Only a serviceable transmission without the classic Pathfinder aged problems
  • Budget 1.15-1.3 million
  • Mileage preferably up to 100 thousand, in priority as little real mileage as possible


Nissan YD25 engine

Characteristics of the YD25DDTi engine

Production Yokohama plant
Engine brand YD25
Release years 1998-present
Block material cast iron
engine's type diesel
Configuration in-line
Number of cylinders 4
Valves per cylinder 4
Piston stroke, mm 100
Cylinder diameter, mm 89
Compression ratio 15.0
16.5
17.5
18.0
Engine volume, cc 2488
Engine power, hp / rpm 133/4000
144/4000
150/4000
171/4000
190/4000
Torque, Nm/rpm 304/2000
356/2000
280/1800
403/2000
450/2000
Environmental regulations Euro 3
Euro 4
Euro 5
Turbocharger IHI RHF4H
Garrett GT1749V
Garrett GT2056V
BorgWarner BV45
Engine weight, kg 200
Fuel consumption, l/100 km (for Pathfinder)
- city
- track
- mixed.

13.2
8.3
10.1
Oil consumption, g/1000 km up to 500
Engine oil 5W-20
5W-30
10W-30
10W-40
10W-50
15W-50
20W-40
20W-50
How much oil is in the engine, l 6.9
7.6 (2007+)
Oil change is carried out, km 20000
(better than 10000)
Operating temperature of the engine, hail. -
Engine resource, thousand km
- according to the plant
- on practice

-
300+
Tuning, HP
- potential
- no loss of resource

-
-
The engine was installed Nissan Murano
Nissan Pathfinder
Nissan Bassara
Nissan Navara
Nissan NV350
Nissan Presage
Nissan Serena
Nissan Primastar/Renault Trafic/Opel Vivaro

Reliability, problems and repair of the YD25DDTi engine

Production of the diesel YD25 was launched in mid-1998, and the first car with it was the Nissan Presage. This motor replaced the CD20 and TD25 on some vehicles. The cylinder block here is in-line 4-cylinder, cast iron, with a cylinder diameter of 89 mm. Inside the block is a crankshaft with a piston stroke of 100 mm, and the length of the connecting rods is 154.5 mm. All this gives 2.5 liters of working volume.

An aluminum head with two camshafts and 4 valves per cylinder covers the block.The intake valves are 28mm in diameter, the exhaust valves are 26mm, and the valve stem thickness is 6mm.
This motor needs periodic adjustment of valve clearances, but this is recommended in case of noise.
Valve clearances on a cold engine are as follows: inlet 0.24-0.32 mm, outlet 0.26-0.34 mm. Clearances on a hot engine: inlet 0.29-0.37 mm, outlet 0.33-0.41 mm.
A chain is used in the timing drive, it serves an average of 250 thousand km, sometimes more.

The first version of the YD25DDTi diesel engine came with direct fuel injection and a Bosch VP44 injection pump, and a Garrett GT1749V with an intercooler worked here as a turbocharger. The return of the motor was at the level of 150 hp. at 4000 rpm, and a torque of 280 Nm at 1800 rpm.
Then, in 2001, the YD25 came with a common rail, with an IHI RHF4H turbo and intercooler, the compression ratio here is 18 (instead of 17.5). The power of this engine is 133 hp. at 4000 rpm, torque 304 Nm at 2000 rpm. Vehicles with YD25DDTi common rail carry the designation dCi.

Since 2005, the production of the YD25DDTi diesel engine with a Garrett GT2056V turbine and a compression ratio of 16.5 began. The output of the motor has increased to 174 hp. at 4000 rpm, and a torque of 403 Nm at 2000 rpm. In 2007, this engine was transferred to Euro-4, and the power dropped to 171 hp. at 4000 rpm, the torque remained unchanged.
The version for the rear-wheel drive Navara featured 144 hp. at 4000 rpm.
In 2010, a Euro 5 version appeared with a BorgWarner BV45 turbine and an intercooler. Its power has increased to 190 hp. at 4000 rpm, and torque up to 450 Nm at 2000 rpm.

The EGR exhaust gas recirculation system allows you to increase the environmental class of the YD25 diesel engine.

Based on this 2.5-liter engine, the younger brother YD22 was released in 1999.
The production of this motor continues today, but, after a while, the YS23DDTT engine will take its place.

Problems and disadvantages of diesel engines Nissan YD25DDTi

The YD25 motor, with proper care, regular maintenance and the use of high-quality oil and fuel, is quite reliable and hassle-free. The nozzles here serve about 150 thousand km, the turbine resource is more than 250-300 thousand km, it would also be nice to systematically clean the EGR valve - soot accumulates quite quickly. With adequate care, the resource of the YD25DDTi engine exceeds 300 thousand km.

YD25 engine tuning

Chip tuning

More evil firmware of the control unit allows you to get 210 hp. on engines with a power of 170 hp, while the torque will increase to 460-490 Nm. Motors with a return of 190 hp. show results even better: up to 230 hp. and 520-540 Nm of torque.
The simplest versions of the Navara for 133 hp. they are chipped at 160-165 hp, and the increase in torque reaches 60 Nm.

The automotive industry in Japan is very well developed, which is not a secret for people who are more or less versed in the automotive industry. One of the mastodons in the creation of cars and components for them is the well-known auto concern Nissan. A large number of not only cars, but also power plants came off the assembly lines of this manufacturer. In today's article, our resource would like to pay attention to one of the famous engines from Nissan - the YD25DDTI diesel unit. About the principles of building this engine, its technical features and repair, read below.

A few words about YD25DDTI

The YD25DDTI engine is a typical Nissan development, during which the Japanese followed the basic principles of their activities:

  • Creation of motors with good functionality and high reliability;
  • Support for an acceptable level of ergonomics.

In the stock state, the YD25DDTI engine is an ordinary diesel engine with:

  • Cast iron block with 4 cylinders;
  • Aluminum cylinder head (cylinder head);
  • Timing chain drive on two camshafts;
  • Forged connecting rods, flywheels, pistons and crankshaft;
  • High quality and reliable attachments.

The only thing you can find fault with in the design of the YD25DDTI engines is the approach to their fuel supply. The fact is that, by switching to DOHC with direct injection, Nissan deliberately abandoned the “common-rail” system, which made it possible to significantly save fuel, so even in the most gentle mode of operation, the YD25DDTI engine usually “eats” at least 9-10 liters of diesel fuel . However, we note that the reliability of the fuel system has improved markedly compared to the predecessors of the unit in question.

Special attention should be paid to the fact that the YD25DDTI has a turbocharger, overhead camshafts and an intercooler. This configuration allows you to squeeze the maximum out of the volume of these diesels. Partially, the YD25s were also upgraded in terms of the exhaust system, having received the EURO-4 environmental standard. These motors were installed and are being installed in minibuses up to 8 seats and light vans. However, some motorists quite successfully adapt them to both light SUVs and crossovers, working with contractors. Now YD25DDTI motors are produced extremely rarely and are practically discontinued. Despite this, the relevance of such installations is still very high.

Engine Service Schedule

In general, the YD25DDTI engines represent a rather high-quality class of installations. Breakdowns of those, of course, happen, but their frequency is extremely low and will delight almost all motorists. Despite this, not all owners of YD25DDTI motors can achieve high operating efficiency. First of all, this is due to non-compliance with the maintenance schedule established by the manufacturer. The manufacturer of the installations does not require anything supernatural from the owners, but only strongly recommends that you follow the profile manuals that determine the need:

  • Timely and complete replacement of lubricant in the internal combustion engine cavities. What oil to pour into YD25DDTI engines? It's easy to say. Any that fits the standard - 10W-30 HD / DPF. It is advisable to give preference to Nissan products. The normal interval for changing lubricants is 8,000 kilometers. In addition to engine oil in YD25DDTI, one should not forget about changing the transmission. This procedure should be implemented every 45-60,000 kilometers;
  • Change of all motor consumables. These include:
    • air filter;
    • oil filter;
    • elements of the cooling system and other internal combustion engine components (pump, gaskets, and the like).

    According to official Nissan manuals, the marked parts are checked and replaced every 30-40,000 kilometers;

  • Replacement spark plugs. The normal frequency for this procedure is 80,000-100,000 kilometers. Candles on YD25DDTI go, as in the case of oil, absolutely any. The main thing is that they correspond to the motor markings and the corresponding glow number. Do not forget that for diesel engines, spark plugs, or rather glow plugs, have a specific, but extremely important purpose, so their selection and replacement should be treated with the proper level of responsibility.

In addition to the above measures, we must not forget about:

  • valve adjustment (every 20,000 kilometers);
  • preventive compression measurement (every 10,000 kilometers);
  • checking the main components of the motors for wear and proper functioning: intake / exhaust manifolds, shafts, pistons, ignition system, etc. (every 50-70,000 kilometers).

When implementing internal combustion engine maintenance procedures, it is important to do everything efficiently and competently. Do not forget that the final resource of the motor depends on this.

Frequent malfunctions and their repair

Engines YD25DDTI, which has been said more than once above, are of good quality. It is difficult to single out any typical breakdowns of these internal combustion engines. It can be precisely stated that they do not bend the valves, do not knock and often “do not burn through”. However, the turbocharger and fuel system sometimes hitches. They are expressed in the loss of power "at the top". Often, when driving at a speed of 120-130 kilometers per hour, the YD25DDTI motors refuse to gain further. Naturally, with the existing functionality, such a state of affairs is not the norm and requires due attention.

Due to the complexity of Japanese units, do-it-yourself repairs are best excluded. It is much more rational to send the engine for diagnostics to a specialized Nissan center, where specialists will work with it properly. Of course, you will have to pay n-th amount of funds for such manipulations, but the result is usually worth it. At a minimum, it is important to resort to the implementation of measures of this kind when overhauling YD25DDTI engines. Do not forget that the overhaul of these units is done every 150-200,000 kilometers. The earlier the better. With the proper approach to repair, operation and maintenance, it is quite possible to squeeze 500-600,000 kilometers from the YD25DDTI.

Motor tuning

To say that the YD25DDTI engines are designed for modernization is definitely not right. Earlier it was said about their "labor" purpose, which by default does not involve profile tuning. Despite this, with a competent approach and a high-quality injection of funds, it is possible to increase the power of these internal combustion engines by about a third of the stock state. The implementation of such modernization lies through:

  • high-quality forcing;
  • cylinder bore;
  • hardware replacement of the internal elements of the motor with more functional and high-quality ones.

Again, the YD25DDTI device does not imply any intelligible tuning. But if it is necessary - why not try?

List of vehicles equipped with YD25DDTI

As mentioned above, the goal of creating YD25DDTI installations was to produce real and relatively economical "tractors" for medium-weight vehicles - vans, small buses, minivans. In terms of their application, the considered motors did not leave this goal. Mostly, the serial use of YD25DDTI motors has spread to:

  • Nissan Bassara (minivan produced by the Japanese from 1999 to 2003);
  • Nissan Vanette Serena (van still assembled in Japan, YD25s used on it from 1999-2006).

Today, serial production of YD25DDTI engines is not practiced. Among motorists, they are used exclusively in the form of "contract workers" and are installed in the same medium-weight cars. Due to the excellent characteristics, the relevance of using such motors is still high.

Technical data about the power plant

At the end of today's article, let's pay attention to the technical characteristics of the YD25DDTI engine. Since this motor is produced in one formation, the description of the basic parameters is always unchanged. Their complete list is shown in the following table:

ManufacturerNissan
Motor brandYD25DDTI
Years of production1999-present
cylinder headAluminum
NutritionDirect injection, DOHC
Construction scheme (cylinder operation order)Inline (1-3-4-2)
Number of cylinders (valves per cylinder)4 (4)
Piston stroke, mm100
Cylinder diameter, mm89
Compression ratio, bar17
Engine volume, cu. cm2488
Power, hp / rpm174/4 000
Torque, Nm/rpm28,5/1 800
FuelDiesel
Environmental regulationsEURO-4
Engine weight, kg
Fuel consumption per 100 km

- track

- mixed mode

Oil consumption, grams per 1000 km700
Lubrication standard10W-30 HD/DPF
Volume of oil channels, l4,5
Oil change interval, km8 000
Engine resource, km600 000
Upgrading optionsavailable, potential - 230 hp
Equipped ModelsNissan Bassara

Nissan Vanette Serena

Perhaps, on a note of consideration of the technical functionality of the YD25DDTI motors, we will finish. We hope that the presented material was useful for you and gave answers to your questions. Good luck on the roads!

If you have any questions - leave them in the comments below the article. We or our visitors will be happy to answer them.

On the one hand, this power unit can be called obsolete, since its production started at the end of the last century. On the other hand, no one is still going to stop the conveyor, therefore, you can buy the yd25ddti 2.5 dci engine from Japan without any problems, because its installation on some Nissan models is still ongoing.

Technical specifications

The advanced age of the YD25DDTi inline-4 has its advantages. Its reliability has been tested by time. A 2.5-liter volume is enough to reach a top speed of 175 km/h.

To achieve high operational and speed characteristics, the developers used in the motor device:

  • cast iron cylinder block;
  • 16-valve aluminum cylinder head;
  • 2 overhead camshafts;
  • turbocharging;
  • intercooler;
  • timing chain;
  • undivided combustion chambers;
  • direct fuel supply;
  • HPF with electronic control.

Gradual modernization led to a change in the injection system and an increase in the number of horses for the yd25ddti internal combustion engine. You can buy a motor with both direct fuel supply and distributed.

The power unit is one of the most used by the Nissan concern. An approximate list of models on which it has ever been installed can be seen in the table.

Possible problems

The use of 2 balance shafts rotating in opposite directions made it possible to avoid the “chronic” malfunction of all diesel engines - vibration. Also, due to this design, it became possible to use one chain on the drive.

Despite the fact that the motor is considered the standard of reliability and durability, it was not without flaws. The main reason why you have to buy a nissan 2.5 yd25ddti used engine for replacement is quite banal - the overhaul is too expensive. The cost is almost the same, but the replacement is not so troublesome.

Imported motors

Given the quality of domestic fuel, it is better to buy a contract one instead of the usual used yd25ddti. The price of a motor without a run in the Russian Federation, of course, is higher than that of those that can be bought from domestic ads. But the production is significantly less due to the use of high-quality fuels and lubricants.

Our company will help to buy a contract motor yd25ddti, as well as any other unit without a run in the Russian Federation. Just leave a request on the website or by phone, and we will select the best offer for you.

List of models equipped with YD25DDTi motor:

Model Years of installation Power
Nissan BASSARA 1999 2003 150
Nissan CABSTAR 2006 on 134
Nissan CABSTAR 2006 2009 130
Nissan CABSTAR flatbed 2006 2011 133
Nissan Navara (D22) 2004 on 134
Nissan Navara (D22) 2001 on 133
Nissan Navara (D40) 2009 on 190
Nissan Navara (D40) 2008 on 133
Nissan Navara (D40) 2006 on 150
Nissan Navara (D40) 2005 on 174
Nissan NAVARA flatbed 2008 on 174
Nissan NP300 2008 on 133
Nissan PATHFINDER (R51) 2005 on 174-190
Nissan PICKUP (D22) 2002 on 133
Nissan SANI all-terrain vehicle closed 2005 on 174
Nissan SERENA (C24) 1999 on 190

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