The 1G FE engine is an inline six-cylinder gasoline engine that was designed and manufactured by Japanese automaker Toyota in 1988. He replaced the 1G EU motor.

This motor combines simplicity of design, reliability and excellent dynamic performance. 1G FE engines were installed on a dozen different Toyota models... In 2007, this modification power unit was discontinued.

Specifications

1G FE engines are installed on Toyota Mark 2 X90, Soarer Z20, Altezza, Verossa, Lexus IS 200 and Crown GS130.

Peculiarities

The 1G engine has a displacement of two liters and develops a power of 135 horsepower. This motor, thanks to the use of a reinforced cylinder head and a connecting rod group made of ultra-strong alloy, has established itself as a fairly reliable and durable motor.

Without overhaul 1G engines, provided they are properly maintained, can run about 500 thousand kilometers. It is not uncommon for cars with 1G FE, the mileage of which exceeds a million kilometers, which testifies to the excellent reliability of this power unit.

One of the features of this engine is the presence of a belt drive of the gas distribution system. However, no decrease in the reliability of the power unit is noted. Timing belt breaks are very rare, while the advantages of such a solution are obvious.

The toothed belt drive made it possible to significantly reduce the cost of motor production, simplify maintenance of the motor, and the power unit itself is compact in size. The use of a special interferential belt drive system eliminates pistons hitting the valves when the belt breaks. Thus, even with such a serious breakdown, the car owner will be relieved of the need for expensive overhaul.

The gas distribution circuit of the motor is made using DOHC technology, it has four valves per cylinder. This allows you to optimize the operation of the power unit and make the most of its dynamic potential.

This motor is characterized by smooth operation over a wide rpm range. Despite the fact that the engine shows its peak power indicators at 4,400 thousand rpm, already at 1,500 rpm the engine produces more than 80 percent of its power.

The cylinder block is cast from cast iron to ensure maximum engine strength and thermal resistance. It must be said that when casting the cylinder block and cylinder head, a special alloy reinforcement technology was used, which made it possible to reduce the thickness of the cylinder walls without losing the reliability and durability of the engine. This made it possible to reduce the weight of the six-cylinder engine, and due to its small size, it can fit even in a small engine compartment. The weight of the power unit is 180 kilograms, which is a record low for a six-cylinder engine.

Modifications

• Since August 1998 released a new version motor - 1G FE Beams. WITH VVT-i system and increased capacity of 160 liters. with. at 6200 rpm.
• In 1996, a small restyling of the 1G FE Beams engine was carried out. The maximum power indicator increased to 140 horsepower, and the torque was 185. The power characteristics were improved by reconfiguring the 1G FE Beams engine control unit and transferring the engine from 92 gasoline to AI 95.
  However, most car owners successfully operate their cars with this engine on A-92 gasoline, and there are no complaints about the reliability and dynamics of the car.
• In 1998, the motor was significantly changed. He received a new ShPG, an updated manifold with the ability to adjust the geometry, an updated valve timing system, completely electronic throttle... Also, the ignition system was changed on the 1G FE Beams.

A feature of the modification of the 1G FE Beams engine is the absence of hydraulic valve clearance compensators, therefore, in 1G FE, the valves are adjusted every 20 thousand kilometers. Note that adjusting the 1G FE valves is not difficult and, with a certain amount of experience, can be done independently by the car owner.

Restyling of 1G FE Beams allowed to increase the engine power up to 160 horsepower at 6200 engine rpm. The problem with the appearance of an oil leak from under the valve cover was eliminated and the oil pressure sensors were replaced, which also often failed and required an expensive replacement.

Its only drawback is low power... In the middle of the 2000s, more than 200 horsepower could be easily removed from two liters of working volume, while even in the restyled version this engine produced only 160 horsepower. It is because of obsolescence that this one was discontinued in 2007.

Malfunctions

Tuning

1. The simplest option for increasing the power of the 1G FE motor is chip tuning, in which an additional power unit operation control unit is installed. As a result, it is possible to obtain a small increase in power, which, depending on the specific chip, can amount to 5-20 horsepower.
2. The popular 1G FE Beams tuning program includes the installation of a turbine, boost controller, intercooler, replacement of the exhaust, engine control unit and exhaust system. As a result, it is possible to completely change the dynamic characteristics, raising the engine power to the level of 300 horsepower. However, it should be noted that the resource of such a forced engine is significantly reduced.
3. It is possible to replace the standard exhaust system of the 1GR FE engine, which makes it possible to add about 5 percent of the power. There are many options for sports exhaust systems for Toyota cars. It is only necessary to choose the option that is suitable for a specific car and engine.
4. Of the available tuning options for 1G FE Beams, a motor swap can be noted, which will allow you to install it in a small engine compartment turbocharged engine, with a capacity of about 200 horsepower. The advantage of this option is the complete preservation of the resource of the power unit, and if it is possible to implement the old replacement motor, the car owner will be able to significantly reduce his tuning costs.

The 1G engine is part of the line of power units that are produced for Toyota vehicles. The release of the power unit began back in 1979. This engine is the predecessor of the legendary 1JZ.

Characteristics and features of motors

The 1G motor has high technical characteristics. The simplicity of the design allows you to repair and service the motor yourself. Cast iron block on which a 12-valve head is installed.

Toyota Chaser with 1G motor.

The design uses a belt that must be changed no later than 100 thousand kilometers. It is recommended to change the timing belt every 75,000 km in order to protect the engine from breakage and unwanted consequences.

After the first release, the motor was regularly refined and modified.

Consider the main technical characteristics of 1G:

1G engine.

Modifications

As mentioned earlier, in the entire history of engine production, there have been many improvements and modifications to the power unit. Consider what improvements and changes the motor has undergone:

1G block head repair process.

• 1G-EU (1979 - 1988 onwards) - the first version of the 1G, which appeared on the Toyota Crown, had a compression ratio of 8.8, a power of 125 hp. at 5400 rpm, torque 160 Nm at 4400 rpm. Since 1983, a version has been produced with a compression ratio increased to 9.2 and a power of 130 hp. Since 1986, the power has been reduced to 105 hp. at 5400 rpm, torque 146 Nm at 4400 rpm. These engines were installed on Toyota Chaser X60, Cresta X50 / X60 / X70, Crown S110, Mark 2 X60, Soarer Z10 / Z20.
• 1G-GEU (1983 - 1988 onwards) - 1G-EU version with 24 Yamaha cylinder head and T-VIS variable intake manifold. Due to these modifications, the engine power increased to 160 hp. at 6400 rpm, torque 186 Nm at 5200 rpm. Since 1985, the power of 1G-GEU has been established at around 140 hp. The engine was installed on following cars: Toyota Chaser X70, Mark 2 X60 / X70, Cresta X60 / X70, Crown S120, Soarer Z10 / Z20, Toyota Supra A70.
• 1G-GTEU (1986 - 1988 onwards) - turbo version of 1G-GEU, compression ratio reduced to 8.5, installed two CT12 turbochargers. At 0.5 bar, the 1G-GTEU delivered 185 hp. at 6200 rpm, torque 245 Nm at 3200 rpm.
  Cars with 1G-GTEU: Toyota Chaser X70, Mark 2 X70, Cresta X70, Soarer Z20, Toyota Supra A70.
• 1G-GZEU / GZE (1986 - 1992 onwards) - compressor version of 1G-GEU, where the SC-14 compressor was used instead of turbines. At the same time applied electronic ignition, another piston for compression ratio 8. The power of such a power unit is 160 hp. at 6000 rpm, torque 210 Nm at 4000 rpm. In 1989, the engine was modernized and the name was changed to 1G-GZE. Boost pressure 0.5 bar, power 170 HP at 6000 rpm, torque 230 Nm at 3600 rpm. The compressor engine was used in cars such as Toyota Chaser X80, Mark 2 X80, Cresta X80, Crown S130 and Soarer Z20.
• 1G-GE (1988 - 1993 onwards) - modernized 1G-GEU, DMRV replaced with DBP, power reduced to 150 hp at 6200 rpm, torque 186 Nm at 5400 rpm. 1G-GE was installed on the following cars: Toyota Chaser X80, Mark 2 X80, Cresta X80, Crown S130, Soarer Z20, Supra A70.
• 1G-GTE (1988 - 1991 onwards) - upgraded 1G-GTEU, reinforced crankshaft, changed intake, intercooler, 315 cc injectors, ECU. The boost pressure has been increased to 0.75 bar. Engine power 210 HP at 6200 rpm, torque 275 Nm at 3800 rpm. There are such engines on the same cars as the 1G-GE, except for the Toyota Crown.
• 1G-FE (1988 - 2005 onwards) - version of 1G-GEU with another narrow 24-valve cylinder head, designed to replace 1G-EU. Power 135 HP at 5600 rpm, a torque of 176 Nm at 4400 rpm.

Service

Maintenance of 1G motors is no different from standard power units in this class. Engine maintenance is carried out at intervals of 15,000 km. The recommended service must be carried out every 10,000 km.

Output

The 1G engine is quite reliable and high-quality engines. All of them have a high rating and respect from motorists and experts. The power unit can be serviced by yourself. For repairs, it is recommended that you contact a service station.

• Type - in-line
• Drive type - belt(replacement every 100 thousand km In case of valve breakage does not bend. )
• Number of cylinders - 6
• Valves per cylinder - 4
• Power type - injector
• Cylinder block material - cast iron
• Cylinder head material - aluminum
• Cylinder diameter - 75 mm
• Piston stroke - 75 mm
• Engine displacement - 1988 cc cm.
• Compression ratio - 9
• Motor power - 135 hp. with. at 5600 rpm.
• The torque is 177 N * m at 4400 rpm.
• Fuel consumption - town 12 l. Track 7 .8 l. Mixed cycle- 10.8 l.
• Passport oil consumption - up to 1000 gr.
• Used spark plug - DENSO K16R-U11, NGK BKR5EYA11.
• Recommended oil change interval - 5-7 thousand km. mileage
• Oil volume in system - 4.2 liters
  
• Recommended oils - 5W-30 5W-40 10W-30 10W-40
  
• Valve clearance check interval - 25 thousand km.
• Clearances - Inlet - 0.2 mm. Release - 0.25 mm.
• Coolant volume in system — 6.5 liter of s.
• Resource with good oil and proper care 400 t s. km. and more.

One of the most successful Toyota engines, which has been on the assembly line for about 17 years. The engine was installed mainly on rear-wheel drive vehicles of the "above average" class. Released models with 1G-FE:, Crown, Soarer. The main advantages include the huge resource of the 1G-FE motor. There are several reasons for this:

Device crankshaft and his bed such that the wear of his supporting necks is minimal, due to their large number.

Excellent balance of the in-line six-cylinder engine - as a result, the minimum level of vibration and noise during operation. The 1G-FE engine at idle is not felt at all in the cabin, there is no sound or vibration. With the engine running, you can safely put a coin with an edge on valve cover and she will stay in this position! Even if you smoothly play with the throttle! (provided that all systems are fully operational: engine mounts, ignition systems, spark plugs, armor wires, etc.)

Also, a big plus to the resource is not a big overall boost of the 1G-FE motor. From the inline two-liter, six-cylinder layout, the Japanese removed 135 hp. in the first version of this engine. In the 1G-FE restyling, Toyota engineers were able to raise the power to 140 hp, with the introduction of an updated engine management system and revised injectors. Whatever one may say, even with this increase - this result of the engine recoil is far from outstanding. Especially when you consider that the cylinder head is quite developed and has 4 valves per cylinder (24 in total).

General quality of workmanship of Japanese motors of the 90s. Maintainability 1G-FE. The engine is the "millionaire from the 90s" from Toyota. The cylinder block is made of cast iron and has repair dimensions. Genuine spare parts are available to order now. Most repair these engines with duplicates and continue to operate the 1G-FE engine without problems.

There are no pronounced shortcomings, like the entire series of 1G motors. The entire line is distinguished by increased requirements for good engine oil and observance of its replacement intervals.

Difficulty cold starting is a common problem. In 90% of cases, it is solved by adjusting the valves. It is also worth checking whether the nozzles are holding the pressure. They can fill the engine with gasoline overnight and the 1G-FE will not start in frosty morning. On a pre-styling engine (up to 90-91) 1G-FE, a cold start system was installed, which Toyota subsequently abandoned. It consists of an additional seventh cold start injector (it also may not hold the rail pressure and fill the engine), which is installed in the intake manifold. And a thermo-temporary cold start relay. There are no duplicates, the original is expensive. Only a working used unit .. If all this did not help, see: compression, then to the engine control unit (checked with a multimeter according to the resistance table), candles, wires, distributor, fuel pump, fuel filter, water in the tank, fuel rail check valves.

The main enemy of these engines is time. How not cool the youngest is 15+ years old. Even in the smallest 1G-FE motor, everything rubber seals lose their properties. Whether it's oil-removable seals or oil seals. Also a frequent occurrence is coking of oil-removable rings from time to time.

Many people are faced with the unstable idle speed of the 1G-FE. In these cases, you need to adjust the TPS, clean the throttle body and check the DTOZH.

The attachments are extremely reliable but also suffer from time to time. Sensors, lambda probe, generator, starter, water pump (pump) and so on.

The 1G-FE motor does not like moisture when washing the engine. Candle wells are quite deep, therefore, after a non-contact washing, it is better to thoroughly blow them with air from the compressor. Visco-muff, in case of falling into a deep puddle, throws everything engine compartment water. The distributor also easily floods with water. So with a sink and through deep puddles without fanaticism.

Buying a car with such an engine (certainly one of the best motors Toyota of those years), be prepared for maintenance and / or replacement of all these little things. Fortunately, all spare parts for the 1G-FE motor are now available.

Toyota 1G-FE / GZE / GTE / GE / EU / GEU / GTEU 2.0 liter engine

Toyota 1G engine specifications

Toyota 1G 2.0 liter engine reliability, problems and repair.

The famous six-cylinder predecessor of the iconic 1JZ appeared in 1979 and became popular mainly in the Japanese market. The design of the first 1G engines was quite simple: a cast iron cylinder block, an aluminum head with a single camshaft, 12 valves and hydraulic lifters on top. In the future, the motor was repeatedly refined, improved, the indices were constantly changing. A description of these modifications is found below.
The timing belt uses a belt, replacing the timing belt with 1G is required every 100 thousand km, together with rollers and oil seals. Candles change every 20 thousand km.
The Toyota 1G engine was produced for a long time and since 1990 it was replaced by 1JZ. However, the 1G remained in production until 2005.

Toyota 1G engine modifications

1.1G-EU (1979 - 1988 onwards) - the first version of the 1G, which appeared on the Toyota Crown, had a compression ratio of 8.8, a power of 125 hp. at 5400 rpm, torque 160 Nm at 4400 rpm. Since 1983, a version has been produced with a compression ratio increased to 9.2 and a power of 130 hp. Since 1986, the power has been reduced to 105 hp. at 5400 rpm, torque 146 Nm at 4400 rpm. These engines were installed on Toyota Chaser X60, Cresta X50 / X60 / X70, Crown S110, Mark 2 X60, Soarer Z10 / Z20.
2.1G-GEU (1983 - 1988 onwards) - 1G-EU version with 24 Yamaha cylinder head and T-VIS variable intake manifold. Due to these modifications, the engine power increased to 160 hp. at 6400 rpm, torque 186 Nm at 5200 rpm. Since 1985, the power of 1G-GEU has been established at around 140 hp. The engine was installed on the following cars: Toyota Chaser X70, Mark 2 X60 / X70, Cresta X60 / X70, Crown S120, Soarer Z10 / Z20, Toyota Supra A70.
3.1G-GTEU (1986 - 1988 onwards) - turbo version of 1G-GEU, compression ratio reduced to 8.5, installed two CT12 turbochargers. At 0.5 bar, the 1G-GTEU delivered 185 hp. at 6200 rpm, torque 245 Nm at 3200 rpm.
Cars with 1G-GTEU: Toyota Chaser X70, Mark 2 X70, Cresta X70, Soarer Z20, Toyota Supra A70.
4.1G-GZEU / GZE (1986 - 1992 onwards) - compressor version of 1G-GEU, where the SC-14 compressor was used instead of turbines. At the same time, electronic ignition is used, another piston for a compression ratio of 8. The power of such a power unit is 160 hp. at 6000 rpm, torque 210 Nm at 4000 rpm. In 1989, the engine was modernized and the name was changed to 1G-GZE. Boost pressure 0.5 bar, power 170 HP at 6000 rpm, torque 230 Nm at 3600 rpm.
The compressor engine was used in cars such as Toyota Chaser X80, Mark 2 X80, Cresta X80, Crown S130 and Soarer Z20.
5.1G-GE (1988 - 1993 onwards) - modernized 1G-GEU, DMRV replaced by DBP, power reduced to 150 hp at 6200 rpm, torque 186 Nm at 5400 rpm.
1G-GE was installed on the following cars: Toyota Chaser X80, Mark 2 X80, Cresta X80, Crown S130, Soarer Z20, Supra A70.
6.1G-GTE (1988 - 1991 onwards) - upgraded 1G-GTEU, reinforced crankshaft, changed intake, intercooler, 315 cc injectors, ECU. Boost pressure increased to 0.75 bar. Engine power 210 HP at 6200 rpm, torque 275 Nm at 3800 rpm.
There are such engines on the same cars as the 1G-GE, except for the Toyota Crown.
7.1G-FE (1988 - 2005 onwards) - version 1G-GEU with another narrow 24-valve cylinder head, designed to replace 1G-EU. Power 135 HP at 5600 rpm, a torque of 176 Nm at 4400 rpm.
Where can you find such an engine: Toyota Mark 2 X90, Cresta X80 / X90, Crown S140, Soarer Z20.
Since 1996, there has been a restyling and the power has grown to 140 hp. at 5750 rpm, a torque of 185 Nm at 4400 rpm.
Cars with this engine: Toyota Chaser X100, Mark 2 X100, Cresta X100, Crown S150.
In 1998, the 1G-FE underwent more serious changes and received the BEAMS prefix. From the innovations, 1G received a new ShPG, a variable valve timing system on the intake shaft, an intake manifold with variable geometry ACIS, an electronic throttle valve, the ignition system has undergone changes, the exhaust manifold has been modified. There are no hydraulic compensators on 1G-FE, so every 20 thousand km it is necessary to check the clearances. The valves on the 1G-FE BEAMS are adjusted using washers, the clearances ( cold engine): inlet 0.15-0.25 mm, outlet 0.25-0.35 mm. The valves on the 1G-GE / GTE / GZE / GEU / GTEU are adjusted in the same way.
Brief characteristics of 1G BEAMS: The compression ratio has increased to 10, the power is now 160 hp. at 6200 rpm, torque 200 Nm at 4400 rpm.
Installed 1G-FE BEAMS on: Toyota Mark 2 X100 / X110, Chaser X100, Crown S150 / S170, Verossa, Altezza, Lexus IS 200.

Toyota 1G 2.0L engine problems and malfunctions

1. High consumption oil for 1G. Most likely the oil scraper rings are stuck, this is normal for engines of this age. You can try to do decarbonization, if it does not help, then you need to buy piston rings, valve stem seals, liners, oil seals, the whole set and do engine repairs.
2. Oil leaks. On 1G, oil often flows through the oil pressure sensor, buy a new one and replace it, it's cheap.
3. Oil pressure 1G-FE. Often, the problem is caused by the sensor itself and needs to be replaced. Check pressure and replace sensor.
4. Speed ​​1G-FE are floating. Check the idle valve (KXX), throttle valve, DPDZ. With the last two, you need to be careful, there is a chance to install them incorrectly.
In addition, turbochargers on turbo versions do not last too long (~ 100,000 km), an unsuccessful oil pump drive was also used, and the engine makes high demands on oil quality. Versions of 1G Beams are less reliable than atmospheric predecessors and when the timing belt breaks, the valves are bent. Monitor the condition of the belt and choose good oil for 1G-FE.
In general, the 1G is very reliable, durable and has a huge motor resource, but time goes forward and even the freshest 1G-FE is already quite old and worn out. What to say about the versions of the 80-90s, due to their age, anything can happen to these motors at any time.