Hyundai G4EK engine
This is a 1,5-liter engine of the G4 series, produced in the period 1991-2000. The main conveyor was located at the plant in Ulsan. The G4EK motor was equipped with a single camshaft. There are 3 versions of it: regular, turbocharged and 16-valve G4FK.
Description of the G4EK engine
He was called the embodiment of the best qualities that a folk assembly of the 21st century should have. The motor is very reminiscent of its subcompact counterparts G4EB and G4EA. It is reliable, economical, easy to maintain, not very whimsical to the type of fuel.
It is noteworthy that the G4EK engine was originally produced by Mitsubishi. Hyundai engineers immediately noticed him, they liked him, and off we go. They changed the name from 4G15 to their own. However, the engine did not survive practically any restyling.
Consider the features of the G4EK power unit.
- There are no automatic hydraulic lifters here, so the owner must regularly (every 90 thousand km) adjust the valves. Many people forget this, and are forced to tune only when it starts to knock hard.
- The valve clearances on the G4EK should be 0,15mm inlet and 0,25mm exhaust. The values on a cold ICE are different than on a hot one.
- Timing belt drive. The manufacturer indicates that it will last 100 thousand km, but this is unlikely. It is necessary to periodically monitor the condition of the rubber element, since when it breaks, the valve bends.
- The cylinders of this internal combustion engine operate according to the 1-3-4-2 scheme.
| Atmospheric version | Turbo version | 16-valve G4FK | |
|---|---|---|---|
| Exact volume | |||
| Supply system | |||
| Internal combustion engine power | 88 - 91 HP | 115 hp | 99 l. from. |
| Torque | 127 - 130 Nm | 171 Nm | |
| Cylinder block | |||
| Block head | aluminum 16v | ||
| Bore | |||
| Piston stroke | |||
| Compression ratio | 10 | 7,5 | 9,5 |
| Hydraulic compensators | |||
| Timing drive | |||
| Phase regulator | |||
| Turbocharging | no | Garrett T15 | no |
| What kind of oil to pour | |||
| fuel type | |||
| Environmental class | |||
| Approximate resource | |||
| Fuel consumption (city / highway / mixed), l / 100 km | |||
| What cars did you install it on? | |||
-
- atmospheric version
-
- turbocharged version
Disadvantages
There are so few of them.
- Let's start with increased and floating speeds on the twentieth. This is almost the most common problem of all G4. And the throttle valve, which is released in a peculiar design, is to blame. A new original, and better high-quality analog throttle assembly will solve the speed problem.
- The second serious problem of this motor is strong vibrations. They are also often found on all models of the series. As a rule, the malfunction is associated with the wear of the pillows that secure the engine to the body. Often the reason is in the revolutions of the twentieth, which should be slightly raised.
- The third problem is difficult starting. If the fuel pump is clogged, then it is necessary to remove it, disassemble or replace it. Another reason may be hiding in the spark plugs, which are flooded in the cold. According to experts, it is not worth actively operating the G4EK motor in the cold season.
- After 200 thousand km, oil zhor begins. Replacing the piston rings solves the problem.
It is generally accepted that before the 100th run, the G4EK rarely has problems. Yes, if you operate the car correctly, rarely drive in winter, do not load the engine. In addition, the composition of the oil and fuel being poured is of great importance.
What kind of oil to pour
The manufacturer offers several options. For Russia, oils with indicators of 10W-30, 5W-40 and 10W-40 have proven themselves best. As for firms, this does not really matter, although it is recommended to pay attention to world famous brands. For example, such as Mannol.
- All-weather oil Mannol Defender 10W-40. This is a semi-synthetic, designed just for an atmospheric gasoline unit.
- Mannol Extreme 5W-40 universal grease is best poured into a turbocharged version of the Korean engine.
- Special Mannol Gasoil Extra 10W-40 is suitable for a natural gas engine. Today, many are converting their cars from gasoline to LPG.
| Mannol Defender 10W-40 | Mannol Extreme 5W-40 | Mannol Gasoil Extra 10W-40 | |
|---|---|---|---|
| API quality class | SL / CF | SN / CF | SL / CF |
| Product volume | 5 l | 5 l | 4 l |
| A type | Semi-synthetic | Synthetic | Semi-synthetic |
| SAE viscosity grade | 10W-40 | 5W-40 | 10W-40 |
| Alkaline number | 8,2 gKOH/kg | 9,88 gKOH/kg | 8,06 gKOH/kg |
| congelation point | -42 ° C | -38 ° C | -39 ° C |
| Flash point COC | 224 ° C | 236 ° C | 224 ° C |
| Density at 15 ° C | 868 kg/m3 | 848 kg/m3 | |
| Viscosity index | 160 | 170 | 156 |
| Viscosity at 40 ° C | 103,61 CSt | 79,2 CSt | 105 CSt |
| Viscosity at 100 ° C | 14,07 CSt | 13,28 CSt | 13,92 CSt |
| Viscosity at -30°C | 6276 CP | 5650 CP | 6320 CP |
| Tolerances and Compliances | ACEA A3/B3, VW 501.01/505.00, MB 229.1 | ACEA A3/B4, MB 229.3 | ACEA A3/B3, VW 501.01/505.00, MB 229.1 |
As for the oil filter, it is recommended to choose SM121. The SCT ST762 proved to be the best fuel filter. The coolant can also be used from Mannol - these are green and yellow antifreezes designed for year-round use.
| JoeCornwell | Will a 16-valve head fit instead of a 12, let's say from a 2008 Accent? Visually, the cylinder head gasket is one to one. |
| Ledzik79 | I still don't know what valve clearances should be set. In the characteristics of some gaps and in the descriptions of others |
| Jepard | Do it according to the manual |
| Verka91 | None of the problems mentioned above. I didn’t climb into the engine, I twisted it to the maximum, the only negative was that it twitched at low speeds when starting off. I didn’t find the reason, the spark plugs, the clutch wires were new, and I sold it |
| EverGreen | Candles NGK does not accept my engine. Only Bosch, only silicon, only expensive ones. The floor of the car is from Mitsubishi. |
| Fentillator | And did you take the turbo spark plugs, or is it Mr., what beats on the atmosphere through guilt?) This is how I got on the glow ignition. The previous owner had candles handed from aspirated. Only yesterday I thought to change, damn it. |
| EverGreen | Certainly a turbo. Certainly iridescent. She was driving, but not as briskly as on a Bosch. When I took the car, there were Bosch spark plugs from the Camry that came from the factory. They are silicon, they drove 10000 on them, and at the first MOT they were changed and given to my car. Glitches are over, the car was frisky. But then, twisted and broke 1 candle. Bosch put both ordinary and silicon ones, but not the same. Ngk is the same. And Tui took more expensive and yes, frisky. |
| Fentillator | Oh, and the valves will bend, yes, because there are no valve recesses in the piston) |
| Bomok58 | Spread all the adjusting and reference data on the engine G4EK, Hyundai S Coupe 93, 1.5i, 12 V. The order of operation of the cylinders: 1-3-4-2; XX rpm: 800 +-100 rpm; Compression (new engine): 13.5 kg/cm2 and 10.5 kg/cm2 (turbo); Valve clearances: - inlet - 0.25 mm. (0.18 mm - cold) and outlet - 0.3 mm. ( 0.24 mm - cold ); Ignition system: - initial UOZ - 9 + -5 degrees. to TDC; Short circuit winding resistance ( Poong Sung - PC91; Dae Joon - DSA-403 ): 1st - 0.5 + - 0.05 Ohm (terminals “+", and “-”) and 2nd - 12.1 + - 1.8 KOhm (terminal “ +” and BB output); Resistance of explosive wires (recommended): Central wire -10.0 KΩ, 1-cylinder -12.0 KΩ, 2nd -10.0 KΩ, 3rd - 7.3 KΩ, 4th - 4.8 KΩ; Gap on candles (recommended: NGK BKR5ES-11, BKR6ES( turbo) Champion RC9YC4. RC7YC (turbo):- 1.0 - 1.1 mm ( turbo -0.8 - 0.9 mm ); Sensors: DPKV - Resistance 0.486 - 0.594 KΩ at 20 degrees. C., OL Resistance - 2.27-2.73 KΩ at 20°C 290-354 Ω at 80°C; Standard - 2.55 kg, and with the vacuum removed. hose with pressure regulator - 3.06 kg |
