The 1.6 liter Kia G4FG (Gamma II series) engine was presented to the public by Hyundai in 2010. This ICE replaced the G4FC engine which was popular at that time. This new modification is equipped with Dual CVVT – a system of constant regulation of the gas distribution mechanism, which provides a more rational filling of the cylinder. The place of production of the new engine is the city of Beijing in China.
1.6L Gamma Engine Specs
The 1.6L G4FG Gamma II series engine was designed based on the popular G4FC predecessor with the aim of replacing it. Let’s list how the 1.6L G4FG Gamma engine differs from its predecessors. The first thing that changes is the pistons, although the crankshaft remains unchanged. Aluminum cylinder block closed with a head with a two-phase transfer, i.e. the Dual-CVVT system appears at the head of the block. Camshaft intake is made more aggressive.
The system of changing the length of the VIS on the intake manifold allows it to move normally at low rotation, the mechanism switches to 4200 rpm. per minute. Time chain drive, endurance more than 200,000 km.
There is no hydraulic lift, so the valve needs to be adjusted periodically. The Kia engine control unit was also changed. Oil needs to be changed regularly every 15,000 km. Meanwhile, the 1.6L G4FG gamma engine contains 3.3 liters of lubricant, ie. when changing, you need 3 liters of 5W oil with a viscosity of 30 or 40. Better to replace a single chain time drive every 150,000 km.
Every 100,000 km, the 1.6L G4FG valve needs to be adjusted to adjust the normal thermal clearance. At the inlet, they should be 0.20 mm, at the outlet – 0.25 mm.
The air filter changes after 15,000 km. After 30,000 km, you need to change the lighting element – the candle. V-ribbed belt, the fuel filter is the one in the tank – after 60,000 km. Every 120,000, that is, approximately every 8 years, the antifreeze should be replaced completely.
1.6L Gamma Engine G4FG installed On:
- From 2010 to 2015: at Elantra 5
- From 2012 to 2017: on i30 2
- From 2012 to 2018: at Ceed 2 and Cerato 2
- Since 2014: on Soul 2
- Since 2015: on Elantra 6
- Since 2016: for the Hyundai Accent HC and Creta 1
- Since 2017: on i30 3, Solaris HC, Kia Rio 4
1.6L Gamma Engine Fuel consumption
Fuel consumption for the 1.6L G4FG Gamma engine for the Kia Rio 4 generation (FB) with 6 automatic transmissions, 2 generations of Kia Sid (JD) with 6 automatic transmissions, 4 generations of Kia Sportage QL with 6 manual transmissions, l per 100 km:
- In the city – 8.9, 9.5, 8.6
- On the highway – 5.3, 5.4, 5.6
- In mixed cycles – 6.6, 6.9, 6.7
1.6L Gamma Engine Problems & Reliability
The advantages include the fact that the 1.6L G4FG Gamma engine failure was rare, service – very simple, cheap spare parts, impressive power with low fuel consumption.
However, the 1.6L G4FG Gamma engine also has a number of drawbacks: produces loud noises during operation, requires valve adjustment, vibrates markedly at moderate speed, and cylinders are prone to scuffing.
We list the main problems of Korean engines for the Kia Rio or Hunday Solaris.
- The engine knocks, but if after heating the Kia Rio engine the knock disappears, then in 90% the cause is not in the internal combustion engine, but in the G4FG time chain. If, after heating, the knocking continues, most likely it was emitted by a non-opening valve.
- Noises such as chirping, clicking, clinking always accompany normal operation of the injectors, so you should not pay attention to such sounds.
- The valve cover has a gasket that sometimes leaks oil. If you don’t like dripping oil, replace this gasket and the problem is gone.
- Kia Rio’s engine worked unevenly, at a floating speed. In this case, the throttle valve may need cleaning. If this doesn’t work you will need to reflash the ICE G4FG.
- Idling is accompanied by vibrations. Dirty spark plugs or throttle valve may be the cause. A damaged engine mount can send out severe vibrations.
- Vibration at medium speed. The 1.6L G4FG Gamma engine has an inexplicable feature – there is a strong vibration at 3000 rpm. The driver says that the motor mount design is to blame for this, as it starts resonating at such a speed. Hence, vibrations are felt everywhere, including. on the steering wheel. To get rid of unpleasant phenomena, you need to release the gas, or add to it.
- The loose attachment belt may whistle. To get rid of this noise, you need to replace the tensioner pulley.
- Since 2011, the 1.6L G4FG Gamma engine has been distinguished by a weak afterburner catalyst (fuel), which fails after 50,000 kilometers. The greatest danger of this phenomenon is sand from crushed catalysts scratching the cylinders, leading to excessive oil consumption and possibly requiring engine repair. A similar problem did not occur on the Kia Rio until 2011, which is equipped with a ram horn exhaust manifold.
Although the manufacturer states the engine power is 180,000 km, in practice it exceeds 300,000. If you provide it with timely service, high quality fuel and oil, the 1.6L G4FG Gamma engine will not cause problems, its reliability has been proven by years of operation.