Toyota Camry engine, engine specifications of the new Toyota Camry. Specifications Toyota Camry Toyota Camry 40 volume 3 vvt engine

The AZ series engines have appeared on Toyota vehicles since 2000 - they gradually replaced the legendary S series engines and remained the company's main "mid-size" engines for ten years. They were installed on a large number of original front-wheel drive models of classes "C", "D", "E", vans, medium and full-size SUVs.

Engine	Working volume, cm 3	Bore x Stroke, mm	Compression ratio	Power, hp	Torque, Nm	RON	Weight, kg	EMS	Standard	Model	Year
1AZ-FE	1998	86.0 x 86.0	9.8	147 / 6000	192 / 4000	95	117	EFI-L	EEC	AZT250	2003
			9.8	152 / 6000	194 / 4000	95	131	EFI-L	EEC	ACA30	2006
			9.5	137 / 5600	190 / 4000	95	112	LG	EEC	AZT250	2003
1AZ-FSE	1998	86.0 x 86.0	9.8	152 / 6000	200 / 4000	91	-	D-4	JIS	AZT240	2000
			10.5	155 / 6000	192 / 4000	91	-	D-4	JIS	AZT240	2004
			11.0	147 / 5700	196 / 4000	95	124	D-4	EEC	AZT250	2003
			11.0	149 / 5700	200 / 4000	95	-	D-4	EEC	AZT220	2000
2AZ-FE	2362	88.5 x 96.0	9.6	160 / 5600	221 / 4000	91	-	EFI-L	JIS	ACM21	2002
			9.8	170 / 6000	224 / 4000	91	138	EFI-L	JIS	ANH20	2008
2AZ-FSE	2362	88.5 x 96.0	11.0	163 / 5800	230 / 3800	95	-	D-4	JIS	AZT250	2006
2AZ-FXE	2362	88.5 x 96.0	12.5	131 / 5600	190 / 4000	91	-	EFI-L	JIS	ATH10	2007
			12.5	150 / 6000	190 / 4000	91	-	EFI-L	JIS	AHR20	2009
3AZ-FXE	2362	88.5 x 96.0	12.5	150 / 6000	187 / 4400	-	-	EFI-L	CHN	AHV40	2010

2AZ-FE (2.4 EFI)

2AZ-FE - transverse arrangement, with distributed injection, for initially front-wheel drive cars, vans and SUVs. Installed on models: Alphard 10..20, Avensis Verso 20, Blade 150, Camry 30..40, Corolla/Matrix 140, ES 40, Estima 30/40..50, Harrier 10..30, Highlander 20, Ipsum 20 , Kluger, Mark X Zio, Previa 30..50, RAV4 20..30, Rukus 150, Scion TC 10, Solara 20..30, Vanguard 30.
In the early 2010s, it was gradually replaced by the ZR and AR series engines.

Modifications:
- 2AZ-FXE - with distributed injection, for original front-wheel drive passenger cars with a hybrid power plant (Alphard Hybrid 20, Camry Hybrid 40, Estima Hybrid 10..20, HS250h, Previa Hybrid 20, SAI).
- 3AZ-FXE - for cars with a hybrid power plant (Camry Hybrid 40 CHN).

Cylinder block

The engine uses an aluminum (light alloy) cylinder block with thin-walled cast-iron liners and an open cooling jacket. Sleeves are fused into the material of the block, and their special uneven outer surface contributes to the most durable connection and improved heat dissipation. Engine overhaul manufacturer not provided by definition.

As is customary on Toyota "fours" with a working volume of more than two liters, a balancing mechanism with polymer (to reduce noise) gears is driven directly from the crankshaft. Unfortunately, in addition to improving comfort, it creates another potential weakness in the mechanical part of the engine.

On type "2006" a spacer appeared in the cooling jacket, due to which the coolant circulates more intensively in the area of ​​\u200b\u200bthe upper part of the cylinders, which improves heat dissipation and contributes to more uniform thermal loading.

Timing drive

The gas distribution mechanism is a 16-valve DOHC, the drive is carried out by a single-row roller chain (link pitch 8 mm), a ratchet hydraulic tensioner is used to tension the chain, and a separate oil nozzle is used for lubrication.

A VVT drive sprocket (variable valve timing system) is installed on the intake camshaft, the phase change limit is 50 ° (type "2006 - 40 °). A separate description of the principles of operation of the Toyota VVT-i system given in the link

The clearance in the valve drive is adjusted using a set of pushers, without the use of washers or hydraulic compensators. Therefore, the owners, as a rule, refrain from the adjustment procedure that has become overly complicated and expensive.
.

It is quite difficult to predict the life of the chain - in rare cases it does not require replacements up to 300 thousand kilometers, but sometimes it critically lengthens up to 150 thousand kilometers (which is manifested by noise in operation, especially after launch, and errors in valve timing). When replacing it, it would be advisable to simultaneously replace all other drive elements (sprockets, tensioner, guide), since used elements contribute to rapid "aging" and a new chain, but since the intake camshaft sprocket is assembled with a VVT drive (~ $ 120) not everyone follows this recommendation. Relatively frequent replacements require a hydraulic chain tensioner, however, this operation is performed from the outside, without removing the chain cover.

Lubricant

The block contains oil nozzles for cooling and lubricating the pistons.

Inlet and outlet

The location of the collectors is more typical for Toyota engines of the previous generation - intake at the rear, exhaust at the front. A notable innovation, the plastic intake manifold (to save weight and cost, and reduce engine air heat), proved to be problem-free enough even for winter conditions.

Fuel injection system (EFI)

Fuel injection - traditional distributed, under normal conditions - sequential. In some modes (at low temperatures and low speed), pair injection can be used. In addition, injection can be performed synchronized (once per cycle, at the same position of the crankshaft, with injection duration correction) or unsynchronized (simultaneously by all injectors).

Multi-point atomizer injectors are optimized for fine dispersion of fuel.

In 2001-2003, a modification was produced with a mechanical throttle actuator and a classic idle speed controller of the "rotary solenoid" type.

However, most models were originally fitted with an Electronic Throttle Control System (ETCS): DC motor drive, dual channel potentiometric position sensor (replaced by non-contact dual channel Hall effect sensor by MY2003), plus a separate accelerator pedal position sensor (originally potentiometric, type " 2006 - Hall effect) ETCS performs the functions of idle speed control (ISC), cruise control and shift torque control.

Paired oxygen sensors (89465) in front of the double catalytic converter,
- one oxygen sensor (89465) before the converter and one after,
- one AFS sensor (89467) before the converter and an oxygen sensor (89465) - after,
- paired AFS sensors (89467) before double catalytic converter and paired oxygen sensors (89465) - after...

The crankshaft and camshaft position sensors remained traditional inductive.

By MY2003, a flat broadband piezoelectric knock sensor was introduced, unlike the old resonant type sensors, it registers a wider range of vibration frequencies.

In the North American market, the ECM also had to manage a prohibitively complex, compared to the versions for Europe or Japan, and a capricious EVAP system, which deserves a separate discussion.

For the 2006 type of some markets with strict eco-standards, the IMRV drive appeared on the intake, which, when the engine is cold and idling, closes the intake channels with special dampers, which creates strong turbulence that contributes to charge turbulence and improves the efficiency of the combustion process.

Starter - with a planetary gear and a segmented armature winding, permanent and interpolating magnets are installed instead of the excitation winding.

Alternator - After MY2003 there are new segmented conductor oscillators. Since MY2006, a freewheel has been introduced with a spring between the inner and outer parts of the pulley, which transmits torque only in the direction of rotation of the crankshaft, reducing the load on the drive belt.

Practice

. The main defect of all engines of the AZ series did not appear immediately, but turned out to be more than critical and massive. During the operation of these motors, spontaneous destruction of the thread in the cylinder block under the head mounting bolts occurs, with a violation of the tightness of the gas joint, leakage of coolant through the gasket, possible overheating, violation of the geometry of the mating plane of the head, etc. sad consequences. Moreover, the owners and many repairmen initially did not even allow the thought of a constructive miscalculation on the part of Toyota and confused the cause with the effect, believing that the "breakdown" of the heads and the thread pulling were due to overheating of a different nature, while in reality everything was the other way around. The problem was officially recognized only in 2007, after some refinement (the thread length in the block was increased from 24 to 30 mm). The manufacturer recommended to "treat" broken heads by replacing the cylinder block assembly (examples of defective parts are 11400-28130, -28490, -28050, price $3-4k). Since this approach was unacceptable outside the warranty, in practice the repair option turned out to be the most optimal with cutting a thread of a larger diameter and installing threaded bushings into it for bolts of standard size (it is recommended to modify all holes, not limited to already torn threads, and replace the fastening bolts with new ones) . And in 2011, Toyota themselves officially recommended a special repair kit of the "Time Sert" series for installing threaded bushings when repairing non-warranty cars (the only thing they ordered was not to put bushings in the corner holes). In comparison with this, other possible malfunctions of the series are perceived as annoying trifles. Traditional for Toyota with VVT problems with crackling after a cold start or with the appearance of codes in the valve timing or VVT system. The manufacturer ordered the replacement of the VVT ​​drive (intake camshaft sprocket assembly) with the next, current version at that time. On cars of the first years of production, at idle or at low acceleration, the plastic intake manifold could make an unnatural noise, which was ordered to be replaced with a modified sample. Of course, problems with leakage and noise of the coolant pump did not bypass the AZ series. By analogy with all modern Toyota engines, the pump should simply be considered another consumable with a normal resource of 40-60 thousand km. Limited resource of the overrunning clutch of the generator pulley. If for the engines of the first releases the problem of increased oil consumption on cars with low mileage did not exist, then after the modification and the appearance of the type "2006", a certain conservation law worked - instead of thread problems, problems with waste began (apparently due to the rapid occurrence of rings, which spontaneously affects some models of modern Toyota engines). However, the harm from these defects is still incomparable. One way or another, with an oil consumption of more than 500 ml per 1000 km, the manufacturer prescribes the replacement of a set of pistons (an example of defective parts is 13211-28110, -28111) and piston rings. As for the gradual increase in oil consumption with "age" (conditionally - on the second hundred thousand run and beyond), here the AZ series is not too different from the classic Toyota engines. Non-progressive waste in the range of 200-300 ml / 1000 km during normal operation can be considered acceptable (although during long-term driving at high speeds, one-time jumps in consumption up to a liter or more are possible). With a more noticeable or growing burnout, the issue can often be resolved by rebuilding the engine with the replacement of piston rings and oil scraper seals (we must not forget about checking the geometry of the block - it was on AZ that there were cases of cylinders that had no signs of running out on an ellipse).

The legendary Toyota Camry at different times was equipped with various types of engines. All engines had, depending on the volume, similar characteristics, however, in terms of reliability, there were some peculiarities. One of the most common engines supplied to the domestic market was Camry 2 - engine size. This engine, from a not very positive side, is quite well known to domestic repairmen in the past, however, its new reincarnation in the latest body partly tries to correct the situation.

Why two liter?

The technical characteristics of the Toyota Camry-2 are quite unpretentious for this class (in Russia, the model is considered the initial one in the business class and has an index D). Equipping the Camry with a 2-liter engine was caused by purely practical considerations - the economic crisis broke out, the ruble collapsed, and with it the solvency of citizens collapsed. And although the model has not lost its leadership position in the class, sales have fallen markedly, so marketers had to urgently look for ways out of the situation.

And the way out was to install a new engine. An engine with a similar volume was familiar to Camry owners in the back of a V30, but that engine had several major differences and fewer “horses”. Also, the new unit has many technical and design differences compared to its predecessor.

Description of the power unit

In general, the description of the motor must begin with the internal filling. Like the rest of the brothers, the 2.0 unit is assembled with a timing chain (timing). This mechanism is considered more reliable than a belt drive, its second plus lies in the resource, which averages 200,000 kilometers.

Also, as an environmental supplement, the engine has an advanced neutral catalyst that filters out soot and other deposits in accordance with Euro-6 standards. Also, in comparison with other options, the 2.0 is equipped with an improved piston group, which, as a result of flashing, allows you to get noticeably more power than declared.

Since the nameplate power is set at 149 horsepower, the amount of transport tax in any region of the country will be small compared to cars of a similar class.

The 2.0 motor is equipped with a phase change system, which allows you to optimally distribute traction while driving at low revs. Not all cylinders can carry out work, but with an increase, everyone is connected to it. Compared to competitors, 2.0 has a fairly modest gas mileage, consuming about 10 liters in the combined cycle (according to the manufacturer, about 8 liters, but measurements are carried out in ideal “greenhouse” conditions, which are quite difficult to achieve in practice).

Disadvantages of the unit

However, like any technically complex unit, these engines are not without some drawbacks. It is not known for what reason, but the manufacturer has reduced the service life and replacement of some components (most likely due to a smaller volume), which affects the passage of a technical inspection at a high cost. At the same time, the main disadvantage is the insufficient level of accelerating dynamics for this class. How much is it?

The car accelerates to the “cherished” hundred in more than 10 seconds, which is enough in city traffic, but this is not an outstanding result for confident overtaking on the highway.

Outcome

This engine is a combination of relatively high reliability, maintainability and low fuel consumption, which will be very pleasant for practical motorists without racing manners.

This car, with its elegance, reliability, efficiency, won the hearts of motorists in many countries of the world, including the Russian Federation and the CIS. Toyota Camry occupies an intermediate position between medium and business class vehicles.

In various configurations, the power unit can be installed with a working volume of 2 to 3.5 liters. Many drivers who already own this car, as well as potential car buyers, will be interested in learning more about the technical characteristics of the car and its engine, fuel consumption in various driving modes, and engine life.

The power units of this model showed themselves on the good side, this is evidenced by the reviews of specialists and car owners.

The design of the engine is high-tech, high-pressure aluminum alloy is used for the manufacture of the main components.

A chain is used to drive the camshaft, and the shaft itself is equipped with a VVT-i system, which is designed to change phases. Plastic gears in the drive, polymers for the intake manifold made it possible to lighten the motor.

Two-liter engine

The seventh generation Camry, until 2014, was equipped with the XV50 engine, later it was replaced by a more improved 6AP-FSE. The working volume for them is the same and equal to 2.0 liters. The upgraded engine received distributed direct injection. Engine power was equal to 147 liters. with., then it was possible to increase it by 3 horses. The timing chain drive, 4-speed automatic was replaced by an automatic transmission with six steps.

The resource of engines is at least 300 thousand kilometers, and with competent, timely and high-quality service, more than 450 thousand kilometers.

Camry V40 with 2.4 liter engine

The end of the last century was marked by the appearance of the V40 2.4-liter 2AZ-FE engine, its design did not belong to highly accelerated units, it was an economical engine, which made it possible to bring the car close to the business class.

Important! The motor has a separate oil pump chain drive, which provided an instant supply of lubricant to the rubbing pairs.

The fuel consumption of a Toyota Camry car with such a “heart”, when traveling in the urban cycle, is in the range of 11–12 liters per hundred kilometers. The service life is at least 300,000 km.

2.5L engine

In 2012, the 2AP-FE engine with a working volume of 2.5 liters was designed and put into series. The engine has four cylinders, which are located in one row. It is still considered by experts to be the most successful design in terms of dynamic performance and fuel consumption. Competent maintenance, the use of high-quality consumables allow the owner to drive 500 thousand kilometers or more without much stress. The cylinder block is cast from aluminum, in which there are cast-iron liners.

The main drawback of the motor, which is indicated in the description of the machine, is that the power unit is not repairable.

3.5L engine

The company's designers managed to achieve high reliability, manufacturability, simplicity of power units that are not equipped with complex systems to reduce harmful emissions into the atmosphere. A working volume of 3.5 liters allows you to remove almost 250 horses, and after upgrading the 2GR, more than 270 liters. With.

The cylinder block is cast from aluminum, in which cast iron liners are installed. The design of the block is V-shaped, has six cylinders. Engine specialists tune it up and get almost 400 horses.

The timing mechanism is driven by a chain that serves 200 thousand km or more without any problems. The resource of engines is about 450 thousand km.

Toyota Camry is still one of the best selling car brands in the world, in its class. In many ways, this is facilitated by reliable, economical power units.

Today, the popularity of Toyota Camry for Russian motorists is undeniable. For more than three decades, it has been a sales leader. It is understandable, a comfortable and roomy sedan with a price, like a budget Korean in the best configuration, makes such a purchase very attractive. And the 2.4-liter 2AZ-FE engine released at the turn of the century, economical and not so forced, made it possible to get closer to the business class.

Engine Features

Cheap and technological 2AZ-FE has an open cooling jacket and is made of aluminum alloys under pressure. The motor is equipped with a chain drive, the intake camshaft is equipped with a VVT-i system, which is responsible for the timely change of phases. The intake manifold is made of plastic and is located behind the engine, which protects it from severe deformations in case of accidents. Significantly reduce the weight of the motor plastic gears of the balancer shaft, coupled with a plastic intake manifold.

The FE engine's oil pump has a separate chain drive, allowing it to instantly build up the correct pressure at start-up.

Such features of the 2AZ-FE engine, with its low power, contribute to equalizing traction characteristics and economical fuel consumption - about 11.5 liters in the urban cycle.

Typical malfunctions of the power unit

The following factors indicate that the 2AZ-FE motor will soon fail:

1. Floating idle with subsequent engine shutdown.
2. Transient modes with characteristic power dips.
3. Deteriorating startup with multiple attempts.
4. The appearance in the expansion tank of the smell of exhaust gases.
5. Detection of an antifreeze leak under the intake manifold.
6. Curvature of the landing plane of the cylinder head due to stretching of the mounting bolts.

The reasons for all these consequences are the depletion of consumables, early failures of components and parts of the 2AZ series engine, and an offensive design miscalculation by Toyota engineers. We list the most characteristic of them:

1. Development of the intake camshaft sprocket (VVT-i mechanism drive).
2. Failure of the coolant pump.
3. Failure of the overrunning clutch of the generator during the development of the resource.
4. The occurrence of rings and the development of pistons.
5. Development of a resource of piston rings and oil scraper caps.
6. The design miscalculation of engineers is the thin bolts of the Toyota Camry cylinder head and, as a result, their stretching and warping of the head plane.

If the first five reasons are the development of the resource of various components and parts of the FE engine, which is quite acceptable and understandable, then the sixth reason requires expensive engine repairs.

Block head repair

After establishing the cause, we partially disassemble the engine: remove the pulleys, valve cover, disconnect the intake and exhaust manifolds. We disassemble the gas distribution mechanism together with its drive. On the camshafts, an emulsion (a mixture of antifreeze and oil) is visible, formed as a result of pulling the bolts. We unscrew the bolts of the 2AZ-FE motor head and remove the head from the block. Check the plane of contact. If she is led, then we give it to the workshop, where the part is leveled on special grinding machines.

After restoring the geometry of the cylinder head, there are two ways to improve the fastening of the head of the block. The first is to drill holes, cut threads in them and screw in the studs on which the head will be fixed, in this case nuts are placed with engravers for reliability. The second is to supply a repair kit that was released by Toyota after recognizing its constructive miscalculation.

It consists of threaded bushings with longer threads, and, imagine, after installing the kit, the defect no longer appeared. Then, in the Toyota Camry of release after 2004, the threads in the cylinder head were lengthened by 6 mm, and the “head failure” no longer occurred.

Let's return to our engine repair - after restoring the mount, we wash the cylinder head, carefully grind the valves and replace the valve stem seals. We put the head in its place in the 2AZ-FE motor with a new gasket and tighten the mount to the torque specified in the instructions. We insert the camshafts into the head and tighten the seats, after which we assemble the gas distribution mechanism. We connect the intake and exhaust manifolds to the head, put the valve cover.

As for the engine life of the Toyota Camry 2.4 engine, dealers promise that the car will easily withstand 400 thousand kilometers, but the exact mileage before the overhaul is still unknown.

Conclusion

Toyota Camry is a very reliable car and after engine repair it will last for a long time. Everything depends not only on the car, but to a greater extent on the personal qualities of the owner: both on the driving style and on the degree of car care.

2AZ-FE, as well as many other cars from the Japanese concern Toyota.

Scheme 2AZ. Image toyota-club.net.

AZ series engines use lightweight pistons

Timing chain replacement

Replacing the timing chain with 2AZ-FE is carried out as the main elements included in the gas distribution mechanism wear out. The cost of the original repair kit is very high, so it is more rational to use analog options. Their price can range from 3,500 to 10,000 rubles. Produced by the Japanese company OSK. You will also need to purchase engine oil, an oil filter and sealant. The purchase of these materials will cost three thousand rubles. When replacing the timing chain in service centers, the cost of work will be about 12,000 rubles.

AZ chain tensioner. Image toyota-club.net

When replacing the timing chain, it is required to match all the marks provided in the 2AZ-FE. With their help, the following elements are exposed in relation to each other:

• crankshaft pulley with a zero mark on the frontal part;
• camshaft sprockets with camshaft bearing cover;
• intake and exhaust camshaft sprockets.

Toyota 2AZ engine tuning

You can use ready-made solutions to increase the power of gasoline Toyota 2.4 2AZ. Its value reaches more than three hundred horsepower. To do this, you will need to use a turbo kit, with the necessary components, based on the T04E.

Motor modifications

Toyota 2AZ has the following modifications:

• 2AZ-FE - the basic version of the engine with a power of 149 hp;
• 2AZ-FSE (163 hp) - 2AZ-FE analog motor with direct injection system;
• 2AZ-FXE - used for hybrid models.

2AZ-FXE is installed on the hybrid Camry XV40

Conclusion

Toyota 2AZ series show sufficient reliability. The 2AZ resource is about three hundred thousand kilometers (it is not uncommon for mileage without overhaul up to 400 - 450 thousand km), subject to proper operation. To do this, it is required to maintain key elements in time, pour only high-quality engine oil regulated by the operating instructions.