Gasoline engine 1NZ-FE: specifications, features and reviews

Specially for installation on a small class of cars "Toyota" the ruler of engines of a series NZ has been developed. The first motors began to be produced in 1997, their production continues to this day. This engine is rightfully considered one of the most durable with proper maintenance, because even today it is installed on new models of cars. The basic version is the 1NZ-FE engine with a capacity of 1.5 liters and a capacity of 109 liters. from.

Some general information

First of all I would like to say about the so-called one-off motorists among motorists. The fact is that all Japanese power units of those times made thin-walled aluminum alloy. Possibility of re-use was absent. For this simple reason, it is not possible, if necessary, to perform major repairs. This was the main factor that deterred many from buying a used car with an NZ-series engine. After all, the run could and was twisted, and in which case it would be necessary to take the contract engine 1NZ-FE, and this pleasure is not cheap.

At the same time in Russia there is a large number of "kulibin" that can repair the unremovable and find a suitable part from a completely different car. That's why many owners of cars with the NZ-series engine should not worry about this. The main thing is that you take care of the motor and keep it in good time.

Brief specifications

As already mentioned a little bit above, the engines of the NZ series are intended exclusively for the small class of Japanese cars Toyota. This is quite logical, because at 1.5 liters of volume and 109 liters. from. It is hardly possible to go to the "Prado" or "Camry".

This engine is a transverse arrangement of 4 cylinders with a gas distribution system DOCH. It turns out that each cylinder has 4 valves. Timing: double-shaft top. The action is driven from the roller chain. The shaft is equipped with a "Toyotovskaya" variable valve timing system of the VVT-i type. The weight of this power unit is only 112 kilograms, and the total life-time is about 200,000 hours. The amount of oil in the system is 3.7 liters, and the fuel consumption is 13 liters in the city cycle, 6 on the highway and 9 in the mixed cycle. It is hardly possible to call this engine economical, especially if it is a question of regular city driving.

Design features of the motor

As already noted above, it is not possible to perform major repairs of this power unit. All due to the fact that thin-walled sleeves made of high-strength cast iron are fused in the block. Cooling jacket - open type. The designers were puzzled by the issue of reducing the degree of wear of the cylinders. For this, the crankshaft was installed with an offset relative to the axis of the cylinders. This solution allowed to increase the motor life a little. Along with this, LFA technology was used. This is a special spraying on the pistons, which slightly reduced the degree of friction.

There are no hydraulic expansion joints in the motor design. Therefore, the manufacturer recommends that every 20,000 kilometers of run, adjust valves using special pushers. The 1NZ-FE engine, the characteristics of which we reviewed, had a rather popular fuel delivery system. The so-called sequential injection is good in that each injector is controlled separately by the electronic unit.

Simple maintenance

If you follow the scheduled time for scheduled maintenance, then this motor is able to walk about 500,000 kilometers. After which it is usually changed to contract. The main conditions for the normal operation of the power unit are as follows:

• Replacement of oil and filter elements every 10 thousand kilometers;
• Adjustment of the valve clearance once every 20,000 kilometers;
• Replacement of the timing chain every 150 thousand km;
• Replacement of antifreeze in the cooling system every 1.5-2 years.

It is also desirable to fill the engine oil with 1NZ-FE, which is prescribed by the manufacturer. The most popular brands that fully comply with the tolerances are "Motul" 5w30, "Elf", etc. Do not forget about the periodic replacement of the air filter. It is advisable to inspect it every 20,000 kilometers and, if necessary, install a new one.

The price of the engine 1NZ-FE

Many drivers who travel a long distance every day, sooner or later there comes a time when you have to start looking for a new motor. And not because the engine was used incorrectly, it's just that its resource came out. In this case, many are sent to the showdown in search of a new heart for their car. The average price of the contract engine 1NZ-FE is about 30-35 thousand rubles. Not very expensive. But here you need to be careful. The mileage is sometimes difficult to determine, but it plays a decisive role. After all, if the motor of such a plan has already run off more than half of its resource, then it hardly makes sense to buy it.

It is advisable to take with you a knowledgeable person who will help to make the right choice. In any case, the contract engine is the most optimal. After all, you get a guarantee on it in the form of a certain period or a run. If during this time something happens to the power unit, then you can repair it for free or change it for another.

Typical motor malfunctions and ways to solve them

Often the first malfunctions of the motor appear on a fairly large mileage. In this case, it is worth taking into account the fact that the manufacturer did quite a lot to reduce the resource of ICE. In particular, this is due to the creation of a short motor and a decrease in the length of the crankshaft. Such changes did not remain without trace.

In the first place often out of order comes the timing chain, and sometimes the tensioner and the soot. You can understand this as a run that should approach 150 thousand, and by a characteristic knock and extraneous noise. In this case, it is recommended to replace the chain, and if necessary, the tensioner and the chain stabilizer.

In the case of floating speeds, it is recommended to clean the throttle and replace the idling sensor. Usually after this the problem completely disappears. Still often enough motorists face the big expense of oil. In this case, the manufacturer recommends replacing the oil-removal rings. But it also happens that an unsuitable lubricant for the 1NZ-FE engine is used. What oil to fill in this motor is written in the manual, it is desirable to follow the manufacturer's recommendations.

Whether it is necessary to be engaged in tuning?

Contract engine 1NZ-FE, the price for which, depending on the state of 30-50 thousand rubles, it makes little sense to improve it. This is due to his "one-off". In this case, various kit-kits will cost you the cost of the same engine. If you seriously deal with this issue, then you have to change the injectors, fuel pump, electronic control unit, etc. It will cost a lot.

But if there is a great desire, then we can puzzle this question. To increase 40-50 "horses" you will need to put the kit Blitz, replace the standard nozzles on the 2ZZ-GE and put a more productive gasoline pump 1JZ-GTE. It is also desirable to replace the standard GBC gasket with a thicker one.

Consumer Reviews

Many seasoned motorists call this motor problem-free. With due care, he does not really bother his owner. There is not a lot of electronics, everything is extremely simple and reliable. Of course, the engine is afraid of overheating, since its head is aluminum and it can lead. It is not necessary to drive for a long time at increased revs, as this can lead to accelerated wear of rubbing parts of the piston group.

Since to facilitate the mass of ICE designers used a plastic intake manifold, therefore, it is recommended to install a HBO for such a motor only with the replacement of the collector. Also, many experts pay attention to the fact that the VVT-i variable valve timing system is very sensitive to fuel quality. Inadequate fuel can lead to costly repairs.

Universal and reliable

In the event of a serious breakdown, repairs are not being carried out, but simply replacing the 1NZ-FE engine. But as practice shows, many cars go into recycling earlier than this motor breaks down. It is because of its reliability that this power unit is installed on 17 models of Toyota cars. It is found even on European and American machines. This says a lot, because the Japanese are famous for the quality of their cars, and this motor is proof of this. Some motorists boost the power unit in order to obtain additional power. This approach also makes sense, because many lack 109 "horses".

Briefly about the benefits

The advantages of this motor are much greater than the disadvantages. Let's start with the most basic. Firstly, this Japanese power unit often runs exactly as many hours as it is prescribed by the manufacturer. And if you take into account that not all drivers follow the deadlines and regret the engine, then this is an indicator. Secondly, it is quite light and compact engine, to remove and deliver which is not difficult. Consequently, the cost of its repair will not be as large as expected.

Despite the fact that the major repair of the engine 1NZ-FE is not performed, in case of a minor breakdown, it is easily restored. This is due to the fact that all motorists studied the design of the Japanese engine from A to Z. And the price of a new contract engine is more than acceptable.

Let's sum up the results

The first Japanese engine 1NZ-FE has been around for about 20 years. All these years he gradually improved. But as it was not repairable from the beginning of production, it has remained so at the present time. Perhaps, this is his only big drawback. But at the same time, the NZ line is very popular and in demand. Not just because these engines are put on many subcompacts "Toyota". At least, this indicates the advisability of such a procedure.

If you change the oil in time, the timing chain and other important mechanisms and components, then this motor will last long enough. In fact, 300 thousand miles is not so little. Many drivers who spend whole days behind the wheel roll up such figures for 5-6 years. What to say about those who use the car only to go to work and back. In general, it can be said that this is a worthy engine, which is used at present. He is not too economical and likes only good oil and gasoline. Otherwise, this motor is unpretentious and works like a watch for a long time with proper care.