Toyota 3UZ-FE 4.3 l engine.

Toyota 3UZ engine specifications

Toyota 3UZ 4.3 l engine reliability, problems and repair.

The 3UZ-FE engine appeared in 2000 as the successor to the 4-liter 1UZ-FE. The 3UZ cylinder block is the same as the 1UZ, aluminum with 90 ° camber and cast iron liners. The cylinder bore was increased from 87.5 mm to 91 mm, which affected the wall thickness. New pistons, light forged connecting rods, weighing 581 grams and 146 mm long were used on the 3UZ. Cylinder head gaskets have been modified.
The cylinder heads were also modified, the diameters of the intake and exhaust ports were increased, and the VVTi variable valve timing system was used on the intake camshafts. Cylinder head bolts have changed, now they are stronger.
The 3UZ-FE features an ACIS variable length intake manifold and new filters, as well as a modified exhaust manifold. An electronic throttle valve is also used, has been modified fuel system, engine cooling system, other applied iridium candles, ignition coils,

The timing system uses a belt. To protect yourself from trouble, the timing belt must be replaced every 100 thousand km.

Together with the 3UZ, other related models were produced: the 4-liter 1UZ and the cast-iron 4.7 liter 2UZ.
The 3UZ-FE engine was installed on premium cars, mainly of the Lexus brand. Since 2006, it has been replaced by the new 4.6 liter V8 1UR. The generational change process was finally completed in 2010.

Toyota 3UZ 4.3 liter engine problems and malfunctions.

Like its predecessor, the 3UZ is a very reliable and extremely durable motor. It has no design flaws even with regular maintenance, use quality oil and gasoline, 3UZ has a resource of more than 500 thousand km.

Toyota 3UZ engine tuning

Compressor. Turbo

The ways to increase the power of 3UZ are the same as on 1UZ-FE. You can get acquainted with them in more detail. The difference lies in the thinner cylinder walls, respectively, to get really impressive numbers, it is better to buy a 1UZ-FE engine.

Toyota is consistently among the most attractive cars in the world. This is a brand that is truly worthy of respect and can offer you unique technical options. At each stage of development, the manufacturer had its own considerations about quality engine and normal technical support cars. There were periods in the history of the automotive industry when many manufacturers in the world were striving precisely for developments japanese company... Today we will talk about Toyota engine models that have received the fame of millionaires. Note that there are very few such representatives among modern units. The company began to produce so-called disposable motors, which cannot be overhauled. This is a generally accepted fact for automotive worldsince all manufacturers follow this path.

It is very difficult to consider the very best Toyota engines as the company offers many interesting powertrain options. Over the decades of successful work, the Japanese have developed and successfully launched more than a hundred models of units for their equipment. And most of the developments were successful. The main set of engines with great advantages began to fill the company in 1988 and later until the beginning of the new century. This is the era that brought glory to the manufacturer and made him world famous. The set of power units is so great that it will not be easy to choose some of the best among this army of technology. Nevertheless, today we will try to consider only the most famous and successful installations that the corporation has released in its life.

Toyota 3S-FE is the first millionaire with excellent performance

Prior to the release of the 3S-FE series engine, it was believed that reliable power units may not be effective. Always unkillable engines were considered rather boring and not very attractive in terms of performance, gluttonous and noisy in operation. But Toyota's 3S series was able to change all perceptions. The unit was released in 1986 and existed without major changes until 2002 - until the global change in the company's model range. Now a little about the characteristics:

• the working volume is 2 liters, the standard design is built on 4 cylinders and 16 valves, there are no technical exceptions and delights in the design of the unit;
• injection system - simple distributed, a belt is installed on the timing system, metal piston group just gorgeous, which affects excellent operation unit;
• power of various modifications ranged from 128 to 140 horse powerthat at the time of the development of the power unit it was actually a record with only 2 liters of engine volume;
• even with poor service, the installation can reach up to 500,000 kilometers, many car owners have not done it since the late 80s overhaul power unit;
• after the overhaul, a rather high resource and excellent operation also remain, so that such an installation can reach up to 1,000,000 kilometers without any problems.

Interestingly, the successors of this unit in the 3S-GE models and the turbocharged 3S-GTE also inherited an excellent design and a very good resource. During operation, this engine is not particularly worried about the quality of the oil and the frequency of its replacement. No problem changing filters or using bad fuel... The motor was installed on almost the entire model range, except for SUVs.

Unique unit 2JZ-GE and its successors

One of the most best engines Toyota for the entire existence of the brand is the JZ series. There is a 2.5-liter unit in the lineup with the GE designation, as well as a 3-liter unit with the name 2JZ-GE. Also added to the series and turbocharged units with increased volume and the designation GTE. But today we will pay attention to the 2JZ-GE unit, which became a legend and existed from 1990 to 2007 without any reforms. The main features of the engine are as follows:

• with 3 liters of working volume, the unit has 6 cylinders in an in-line design - the design is very simple, classic and can serve for an incredibly long time without breakdowns;
• when the timing belt breaks, the valves do not meet and do not bend, so even with poor service you will not be forced to spend a lot of money on car repairs;
• large working volume has become the reason for interesting characteristics - 225 horsepower and 300 N * m of torque make a unique job;
• the metals used are not sharpened for lightness, the unit is very heavy and bulky, therefore it was used in large company cars with the need for power;
• operation up to 1,000,000 kilometers may well occur without additional repairs, the design is very reliable and produced with excellent attention to detail.

There are no flaws in the line at all, as evidenced by the reviews. In our latitudes, the most common engine for the Mark 2 and Supra. The rest of the models are not so common. American models of Lexus sedans were also equipped with such units, but in Russia there are only a few of them. If you decide to buy a car with such a unit, then you can safely take a mileage reserve of over a million kilometers, this is a perfectly acceptable resource for the engine.

Legend and base engine from Toyota - 4A-FE

One of the legendary and first successful developments of the company can be safely called the 4A-FE model. This is a simple gasoline power unit that can simply surprise the owner with its characteristics of durability and quality of service. The unpretentiousness of the motor would have made it popular today, but the company decided to move to more modern economical series. The unit is still operating well with the following features:

• the classic design with a displacement of 1.6 liters produces a rather modest 110 horsepower, but at the same time it always works at the maximum of its capabilities in a car;
• torque is also not surprising - 145 N * m cannot be called a great combination of dynamics and power, but the unit behaves surprisingly decent in heavy vehicles;
• when the belt breaks, it does not lead to bending of the valves, no problems arise even with poor maintenance, and this indicates unpretentiousness and quality of products;
• there are no requirements for expensive gasoline - you can safely fill in 92 and drive without any problems, without losing a single kilometer of resource (consumption will be a little more);
• million kilometers is not the limit, but without major repairs, only a few units reach this figure, it all depends on the quality of service and operating modes.

To a large extent, there are no problems with cars. When servicing, the only important factor can be considered the requirement for timely replacement candles. This approach will help you simply get real operational benefits and reduce fuel consumption. It should also be noted that the motor has no structural problems, it can actually go as many kilometers as you like and not give any trouble to the owner.

Indestructible motor for crossover 2AR-FE

The last engine, which will be discussed today, is another representative of the Toyota segment, which in its operation can give a head start to anyone. This is the 2AR-FE line that was installed on the Toyota RAV4 and Alphard. We know it best from the RAV 4 crossover with its incredible operational capabilities. The engine is made with high quality and can offer its owners simply amazing advantages of operation:

• with a volume of 2.5 liters, this gasoline unit is enough for 179 horsepower and just incredible 233 N * m of torque, the characteristics are suitable for a crossover;
• cars with such installations are completely unpretentious to gasoline, there is no need to look for the best fuel, you can even pour 92 gasoline without a twinge of conscience;
• the chain on the timing system eliminates problems with the valves, its replacement is necessary every about 200,000 kilometers, but the engine resource goes far beyond 1,000,000 km;
• there are great benefits of transport operation in terms of fuel consumption, maintenance costs - there are practically no service requirements, but its frequency should be normal;
• undoubtedly the most striking example of the use of the unit is Toyota Camry, in which this engine played a special role during the long period of the car's production.

As you can see, this power unit has also earned the attention of the world community. All motorists who have encountered the capabilities of the power plant speak of its incredible reliability and simply excellent operating options. In the worst case, this engine will have to be sent for overhaul at 500-600 thousand kilometers. It remains only to periodically go to the service and enjoy the reliability of this unit. We offer you to watch a video about the five best engines from the corporation:

Summing up

On the market you can really find a large number of the most diverse representatives of million-plus engines. But for the most part, these units ended their existence in 2007, when the company moved into a new era of power plants. In the new generation, the cylinder walls are so thin that repairs are simply impossible. So the old classic millionaires are available only on secondary market... However, many models are sold today as used with up to 200,000 mileage and huge residual life.

However, when buying a car, you need to look not only at the engine, but also at all other features of the car. Sometimes mileage means nothing, but the quality of service and normal operation when buying is worth evaluating. You can find unexpected data about Toyota engines, which become the reason for not very successful operation. For example, the use of excessively poor fuel with impurities can disable the newfangled VVT-i system and lead to other problems in the system. So the millionaire does not always remain so during his life. Have you come across in your experience with the above engine models?

If you have money, a lot of money, then you will definitely want to buy yourself, in order to emphasize your status in society, and perhaps to fulfill your old dream. Of course, when you are a millionaire, your opportunities are not limited in anything, you can order any car model for yourself, which will be created according to your request and taste. But do you know what you will face in this case? No? For example, you wanted to buy something that only exists in cars, and the choice in the car market for you will be, say, small. And what to do? Unfortunately, many car companies especially for last year significantly reduced the production of power units with large engine displacement. True, fortunately for us, while the global automotive market has plenty to choose from.

Naturally, everyone understands who has the means, a lot of money, will not want to buy a car with a base engine. Therefore, most of the wealthy citizens are buyers expensive cars will most likely prefer the powerful, fastest and most controllable car for themselves. And so, while the laws of physics have not yet been canceled by anyone in the world, and you really need one, then, of course, you cannot do without an engine with a large volume. We present to our readers the 10 largest in the world car enginesthat are available in the automotive market today.

10. Ferrari F12 TDF: 6.3-liter V12.

We open our top 10 with a gigantic 6.3-liter V12 under the hood. It is a high-performance engine specially designed for the Le Mans race. The power of this monster is 770 hp. Maximum amount the speed of its motor is simply amazing - 9000 rpm. This power is sufficient to accelerate the car from 0 to 100 km / h in less than 3 seconds. This engine is also installed on the GTC4 Lusso and Berlinetta F12 car models.

9. Audi A8 L W12: 6.3-liter W12.

The company also launches its flagship A8 with a variety of powertrains, including its incredible W12 engine. No friends, we have not sealed at all, this engine really has a W-configuration, not a V-shape. At its core, the A8 W12 engine is the same two V6 engines connected together into one whole, which have one common crankshaft... As a result of engineering innovations, the power of this engine was brought to 500 hp. Thanks to the 8-speed automatic box gear and all-wheel drive the car can accelerate from 0 to 100 km / h in 4.4 seconds.

8. Lamborghini Centenario: 6.5-liter V12.

7. Chevrolet Silverado Heavy Duty / GMC Sierra Heavy Duty: 6.6-liter diesel Duramax.

Another giant engine created and produced today under the wing of the "" company. These power motors are designed for pickup SUVs. We are talking about a diesel 6.6 liter engine with 397 hp.

But for a diesel engine, the most important thing, as you already know, is the torque, which in this engine is 1037 Nm !!!

6. Ford 6.7-liter PowerStroke diesel, Ram 6.7-liter Cummins diesel.

We continue our rating. A couple more diesel engines, which are manufactured by Ford and are designed for powerful pickups. The auto company "Ford" today produces two versions of 6.7 liter diesel engines with different compression ratios. For example, Powerstroke is V-shaped and has 8 cylinders, while the engine for auto RAM is called Cummins and is already an in-line six-cylinder power unit.

The Powerstroke V8 engine has 440 hp. (max.torque -1166 Nm).

The power of the Cummins in-line six-cylinder engine is less and is 385 hp. But the torque of this diesel engine is incredible, it is 1220 Nm!

5. Rolls-Royce Phantom: 6.74-liter V12.

To ensure the maximum smoothness and power of the engine in accordance with the laws of physics, it is best when the power unit has at least 10 cylinders. It was according to these laws for a luxury car that the company's engineers created their masterpiece, a V12 engine with a volume of 6.74 liters and a power of 453 hp. It is incredibly strong, refined and powerful engine, as, in principle, this machine itself.

4. Bentley Mulsanne: 6.75-liter V8.

As an alternative to the V12 engine, the company "for its car model, produces its V8 engine with a volume of 6.75 liters. This power unit is equipped with two turbines and thanks to this, the company's engineers were able to squeeze out as much as 530 hp from the eight-cylinder engine with a maximum torque of 1100 Nm.

3. Ford E-Series: 6.8-liter V10.

In our ranking, we examined the top positions. But in the world there are also many commercial vehicles with large engines. For example, the Ford E-Series car built on a commercial platform, which is powered by a 6.8 liter V10 Triton engine. This motor has a modest performance, power of 305 hp. and a maximum torque of 569 Nm.

2. Hennessey Venom GT: 7.0-liter twin-turbo V8 engine.

"Hennessey" is a tuning company from Texas (USA) that, in addition to tuning, produces its own super sports cars... For example, the tuning version of the Venom GT car is the fastest by car on the planet (435.31 km / h), which is faster than a car of a discontinued brand. But according to representatives of the company, this supercar is capable of more. According to experts, the car is capable of accelerating to 447.4 km / h.

This Venom GT is a tuning version of the Lotus Exige. This modified car received a 7.0 liter twin-turbo V8 engine producing 1244 hp. with a maximum torque of 1565 Nm.

1. Dodge Viper: 8.4-liter V10.

And so dear friends we went to the engine internal combustion with such a volume that these days production cars almost impossible to find. Even 10 years ago, engines over 8 liters were not as rare as they are today. At this time, all automakers have significantly reduced not only the number of cylinders in the engine, but also the volume of these power units, compensating for everything by adding the most high-performance turbochargers to their motors.

One of the most important characteristics of any engine or engine is its working volume. Since the appearance of the first, this characteristic of the motor has been the paramount indicator by which this or that power unit stands out. For this reason, the term "engine size" is constantly used in relation to various power plants. On many cars, the indication of the engine volume is made in the form of a special nameplate next to the designation of the model itself. For example, BMW 740 means that it is the seventh series in lineup with an engine volume of 4.0 liters.

When it comes to comparing powerful atmospheric and turbo engines, a simple atmospheric engine is considered more reliable. On average, a gasoline turbo engine with a capacity of about 200 forces with a working volume of 1.8 or 2.0 liters, even with quality service, may require attention on a mileage of about 180-250 thousand km. At the same time, a 3.5-liter "aspirated" with a similar power will pass about 350 thousand km without repair. It should also be noted that it is not correct to compare gasoline and diesel engines with each other in terms of volume alone, since diesel initially has a higher efficiency and a number of other distinctive features.

Read also

List of the most reliable gasoline and diesel engines: 4-cylinder power units, in-line 6-cylinder internal combustion engines and V-shaped power plants... Rating.

The engine is the main and most expensive unit; whether the maintenance of the car is costly depends on its reliability. This is especially true for buyers of used cars. If only because motors usually begin to demand attention after warranty period - more often at the second or third owners. They are primarily addressed in our rating, prepared jointly with the Moscow company INOMOTOR, which has been working on professional repair engines.

We have planned several comparative materials in which we will consider engines of different sizes. Let's start with atmospheric gasoline two-liter engines. Since a good-quality overhaul is not cheap pleasure, units of smaller cubic capacity are almost never brought to the minders: their restoration will cost more than the so-called contract engine with mileage brought from abroad. Therefore, statistics on such engines are too scarce for comparative analysis.

The ranking includes well-studied and popular engines that debuted 10-15 years ago. Around this time, there was a significant drop in quality - the resource of motors and their reliability significantly decreased. For the most part, these units were installed on cars of the penultimate generation, many of which became bestsellers in the secondary market. They ran solid runs, providing enough material to speculate about reliability.

The main criterion for allocating places is the total engine life. In addition, we evaluate the reliability of their individual systems and components, as well as the quality of parts manufacturing. We examined the repair technologies in detail in the material "Second Life" (ZR, 2015, No. 1). Almost all elements of the motors can be restored - the only question is economic feasibility. The approaches to engine repair presented in the review are identical, the only difference is in the number of parts requiring treatment. Therefore, we consider the cost and availability of spare parts as an additional criterion for comparison.

Generally atmospheric gasoline engines a volume of 2.0 liters is a rather resourceful and not the most problematic group; many engines of the same families, but with a larger volume, for example 2.3–2.5 liters, are much more capricious. This is also true for the "winners" of our rating.

8th place: BMW

Engines BMW series N43, N45 and N46 belong to the same family, although they differ in design. Their main carriers - models 318i, 320i (E90) and 520i (E60) - are representatives of the penultimate generations of BMW of the third and fifth series.

The average service life of engines in terms of cylinder-piston group wear is estimated below 150,000 km - the quality of parts manufacturing is not outstanding. Engines are technically complex for their time - perhaps even too much. They have many systems and assemblies that start to be capricious even before the onset of natural wear of the cylinders and piston rings.

Motors are structurally prone to oil consumption, and the situation is aggravated by some malfunctions. Due to the failure of the rubber diaphragm of the crankcase ventilation valve, oil begins to enter the intake manifold - the car smokes like a steam locomotive. By 100,000 km, due to the wear of the guide bushings, an increased play of the timing system valves occurs, as a result of which the oil through the valve stem seals goes straight into the combustion chamber. In addition, incomplete closure of the valves leads to misfiring and interruptions during cold start of the engine in winter.

The timing chain and variable valve timing clutches usually do not survive up to 150,000 km. Due to the uneven elongation, the chain begins to make noise, even a break is possible, and then the meeting of the pistons with the valves is inevitable. But more often it only jumps a few teeth without disastrous consequences. In addition to mechanical wear of the phase change couplings, by about 100,000 km of run, oil deposits clog the solenoid that controls them - the motor goes into emergency mode.

The intake valve lift system (Valvetronic) is also capricious, which works instead of the usual throttle... After 100,000 km of run, an expensive electric motor clogs up with oil deposits, and eventually it gets jammed. Due to frequent driving through traffic jams, carbon deposits build up on the valves, which turns them into incomplete closing. On revs idle move the sensitive system perceives this as a serious malfunction, the engine starts to work intermittently, the Check Engine warning lamp comes on.

These BMW engines, like many of their contemporaries, do not have factory overhaul dimensions. In case of critical wear of the cylinder walls, the mechanics bore and bore blocks, while maintaining the nominal size of the piston group. Alas, original spare parts bMW engines - the most expensive among others from our selection, and there are practically no analogues to them. Overhaul of these motors is the most costly.

7th place: Volkswagen

2.0 FSI engines were installed on many models of the Volkswagen concern. The most common are Golf V, Passat B6, Octavia and second generation Audi A3.

The average engine life is 150,000 km. Engineers rate the quality of their components as average. Like BMW engines, Volkswagen 2.0 FSI units, due to their technically complex design, do not shine with reliability, but the scale of the disaster is smaller.

Direct injection fuel equipment is capricious. Expensive, but short-lived injectors and high pressure fuel pumps die after 100,000 kilometers. In addition, due to a design flaw in the power supply system, uneven wear of the cylinders occurs: the injector sprays gasoline on almost the opposite wall of the cylinder, thereby flushing oil from it. Already by 120,000 km, the cylinder in this area has a distinct barrel shape due to wear.

Another disadvantage of direct injection: the fuel does not clean intake valves from soot. Sooner or later, this leads to their incomplete closure and unstable cold starts of the motor, especially in winter. The situation is aggravated by the rapid wear of the valve guides (like in BMW engines), which in addition leads to increased consumption oils.

FSI engines were also noted for the frequent occurrence of piston rings. The noticeable decrease in their thickness significantly affected the stiffness. By the way, this is one of the trends in modern engine building: weight reduction affects reliability. Less stiff rings lose their original geometry more quickly, coke up and actually stop working. One of the harbingers of this is the difficult cold start of the engine in the winter.

Repair dimensions are not available for FSI motors. Genuine parts are not cheap. Fortunately, there are plenty of substitutes on the market. In general, the cost of overhauling FSI engines is high, more expensive only for BMW units.

6th place: Ford / Mazda

The joint brainchild of Ford and Mazda are Duratec HE / MZR engines. These identical motors are widespread, they were installed on such mass modelslike the Mazda 3 and Mazda 6 of the first two generations, Focus and Mondeo of the previous generations.

The resource of motors is 150,000-180,000 km. Structurally, they are quite simple, but, alas, the quality of the parts leaves much to be desired. In addition, these engines are particularly sensitive to oil starvation and overheating.

With active driving, oil consumption increases significantly. If the owner does not keep track of its level, there is a high risk of cranking the connecting rod and main bearings of the crankshaft. On these engines, the liners are made without locks and are installed in tension - they are held in place only due to the elasticity of the metal. Unfortunately, this is another common solution today. A short oil starvation or slight overheating of the motor is enough, and the liners lose their geometry.

When turning the liners, the crankshaft journals and its bed in the cylinder block suffer. When they are repaired, mediocre workmanship emerges. It is not uncommon for the shaft journals to crack: an expensive shaft is ejected. And when you unscrew the bolts of the main caps, thread debris spills out of the holes. Obviously, when assembled, it will no longer withstand the required tightening torque. We have to restore it with the help of futoroks.

The engines do not have oversized dimensions. At the same time, for engines of Ford models, spare parts are not available separately - only as a short block (cylinder block assembly). Fortunately, there are similar Mazda parts on sale. There are also non-original spare parts on the market. Motor overhaul costs are average.

5th place: Renault-Nissan

The motors of the Renault-Nissan concern of the M4R / MR20 families are more familiar from japanese crossovers... The MR20 unit was armed with the previous generation X-Trail, and Qashqai has not parted with it to this day. The French counterpart was on the third generation Megan and is still available for Fluence.

The resource of the motor brothers is 180,000-200,000 km. The quality of parts is better than that of the closest competitors - motors for ford cars and Mazda, but without weak points also not done. Sometimes cracks appear on the necks crankshafts and deformation of the fourth cylinder occurs - as a rule, when the servicemen overtighten the mounting bolts when installing the gearbox. The timing chain is short-lived: it stretches to 80,000 km.

As usual, repair dimensions are not provided. Original spare parts are available separately. In terms of overhaul costs, these engines are comparable to a Ford / Mazda pair.

4th place: Mitsubishi

The Mitsubishi 4B11 series engine opens up a subgroup of engines free of serious diseases. It was installed on the previous generation Outlander and Lancer X of the first years of production.

Engine resource - 180,000-200,000 km. The workmanship of its elements is good. The overall reliability of the motor is largely due to the simplicity of the design, devoid of capricious systems. As a rule, engines get to repairmen due to natural wear of the cylinder-piston group.

The motor is oversized. Original spare parts are available separately.

In terms of the cost of restoration, the Mitsubishi engine is comparable to the engines of Renault, Nissan, Ford, Mazda.

3rd place: Honda

The Honda R20 engine was installed mainly on the seventh and eighth generations of the Accord and on the CR-V of the last two generations.

The resource is about 200,000 km. The workmanship of the parts is slightly higher than that of the Mitsubishi engine. The R20 engine is reliable and simple in design. Simple circuit adjustment of valves "screw-nut" does not require selection and replacement of valve tappets. Subject to the regulations of this operation (every 45,000 km), the R20 will not cause trouble until natural wear of the cylinder-piston group occurs.

Repair dimensions for the engine are not provided. Spare parts for Honda engines are not cheap, so overhaul is one of the most expensive in the Japanese subgroup.

2nd place: Toyota

The resource is about 200,000 km. The workmanship of the elements is very good. There are two clear leaders in this indicator on our list - Toyota and Subaru. The 1-AZ engine was ahead of Honda's R20 in another way: original parts for it are among the cheapest. The price of rebuilding the 1-AZ engine is the lowest in our rating.