Hyundai Beta engine


The Hyundai β-series engines are 1.6 L to 2.0 L straight-4 built in Ulsan, South Korea.
All β-series engines are dual overhead camshaft valvetrain design.
The β-series engine uses a direct-acting overhead cam valvetrain arrangement which places the camshaft in the cylinder head above the pistons and combustion chamber and operates the valve tappets/lifters directly.
The β-series engine's ignition system is designed to ignite the fuel/air charge that enters each cylinder by producing a high voltage spark at the exact moment for maximum efficiency.
All β-series versions are equipped with a Distributorless Ignition System. The system consist of the
ignition coil assembly, Camshaft Position Sensor, Powertrain Control Module, spark plug wires and spark plugs.
The β-series or the Beta family includes the following engine codes: G4GR, G4GB, G4GC, G4GF and G4GM.

β-1.6D
G4GR

The 1.6-liter Hyundai G4GR engine was assembled from 1995 to 2001 at the Ulsan plant. Unlike other representatives of the Beta series, this engine did not receive the second generation and was replaced by the power unit Alpha II. In a number of markets, a deferred version of 90 hp was sold.
The β-1.6D is an in-line, spark-ignition 4-stroke, dual overhead camshaft 16 valve engine and had two variants depending on the vehicle's sub-model. There was a Beta I G4GR DOHC 16v version for the GL sub-models with an advertised power of 66 kW/ 89 hp/ 90 PS and 126 Nm/ 93 lb-ft of torque and the Beta I G4GR DOHC 16v version for the GLSi and LSi sub-models advertised power of 84 kW/113 hp/114 PS with 143 Nm / 105 lb-ft of torque.
SPECIFICATIONS:
Cylinder bore: 77.40 mm/ 3.051 in

Stroke: 85.00 mm/ 3.346 in

Engine Displacement: 1599 cm3 / 97.9 cui

Compression Ratio: 9.85

Firing Order: 1-3-4-2
Idle RPM: 800°± 100

Ignition Timing at idling speed: BTDC 7°± 5°/800 rpm
'' oversize
VALVE GUIDE
Installed dimension O.D. : 14 mm

Installed dimension O.D. : 14 mm

Service size: 0.05, 0.25, 0.50 mm oversize
The 2nd generation Elantra and 1997-2000 Hyundai Coupe-I were equipped with Beta I G4GR DOHC 16v engine and were distributed primarily within the European, Russian, Middle East and parts of Asian General Market. The vehicles sold in this market were equipped with an Adjusting Potentiometer, idle mixture
All models except the Hyundai Coupe-I equipped with the Beta-I G4GR DOHC did not include a Mass Air Flow sensor which can be purchased separately.
For aftermarket barometric pressure sensor installation, an integrated Manifold Absolute Pressure and the Intake Air Temperature sensor is available.
The Beta-I series G4GR 66 Kw engine was equipped on the following vehicles listed below:
Hyundai Elantra 1.6 16v GL from 11-1995 to 09-2000
The Beta-I series G4GR 84 Kw engine was equipped on the following vehicles listed below:
Hyundai Coupe-I 1.6 16v from 03-1998 to 06-2000
Hyundai Coupe-I 1.6 16v from 06-2000 to 04-2002
Hyundai Elantra 1.6 16v GLSi from 11-1995 to 09-2000
Hyundai Elantra 1.6 16v GLSi from 11-1995 to 09-2000
Hyundai Elantra 1.6 16v LSi from 11-1995 to 09-2000
Hyundai Elantra 1.6 16v GLS from 02-1996

β-1.8D
G4GM

The 1.8-liter Hyundai G4GM engine was manufactured from 1995 to 2003 at the Ulsan enterprise and was put on several popular models of the Korean concern, for example the Elantra and Coupe. The motor was assembled for eight years and after it was replaced with a similar in volume unit of the Beta II series.
SPECIFICATIONS:
Cylinder bore: 82 mm
Stroke: 85 mm
Engine Displacement: 1795cc
Compression Ratio: 10.0

Firing Order: 1-3-4-2
Idle RPM: 800°± 100
Ignition Timing at idling speed: BTDC 10°±5°/800 rpm
DescriptionSpecification
Cylinder bore82.00-82.03 mm

Out of-roundness
& taper of
cylinder bore
Less than 0.01 mm
Clearance with
piston		0.02-0.04 mm

1996 Hyundai Tiburon 1.8 SRX was first to be equipped with the β-1.8Dengine

β-2.0D
G4GF

The 2.0-liter Hyundai G4GF engine was assembled from 1996 to 2001 at an enterprise in Ulsan and was put on two models of the concern: Elantra, as well as the Coupe. The motor was produced only five years and after it gave way to the power unit of the Beta II series, which became a real bestseller.
The G4GF is the 2.0L version, having debuted in 1997 as the uplevel engine for the original Hyundai Tiburon. It shares the 82 mm bore of the 1.8 but is stroked to 93.5 mm. It has a cast iron engine block and aluminum DOHC cylinder head. It uses MFI fuel injection, has four valves per cylinder and features powdered cast steel connecting rods. OPA Output is 140 hp at 6000 rpm and

β-1.8D
G4GB

The 1.8-liter Hyundai G4GB engine was manufactured from 2000 to 2010 in Korean Ulsan and was put on such popular models of the concern as Elantra, Cerato and Matrix. The motor belonged to the Beta II series therefore had an upgraded design relative to its predecessors.

β-2.0D
G4GC

The 2.0-liter Hyundai β-2.0D G4GC engine was produced from 2001 to 2012 at the company in Ulsan and was put on numerous popular models of the concern, such as Elantra, Sonata and Tucson. The power unit belonged to the β-2.0D G4GC series and since 2003 it was equipped with a phase regulator at the inlet.
The β-2.0D G4GC engine is equipped with the CVVT timing system. The engine is reliable and unpretentious, has a high resource of more than 300 thousand km. The β-2.0D G4GC is the oldest model of the 2nd generation β-series family.
Four-stroke, four-cylinder petrol with electronic control system of fuel injection and ignition, with in-line arrangement of cylinders and pistons rotating one common crankshaft, with the top arrangement of two camshafts. The engine has a closed-type liquid cooling system with forced circulation. The lubrication system is combined: under pressure and spraying.
The head of the block of cylinders' β-2.0D G4GC is made of an aluminum alloy. The drive of the camshafts is carried out by a toothed belt. The belt itself drives only the exhaust camshaft and the intake camshaft is driven from the exhaust by means of a chain, it is in the rear of the cylinder head as is the mechanism for changing the valve timing. On the engine there are no hydraulic compensators, adjustment of backlashes of valves is required at run in 90 thousand in km.
During 2001-2002, the new β-2.0D G4GC engine made its debut in models such as the XD Elantra and GK Tiburon. Output is 138 hp at 6000 rpm with of torque at 4500 rpm. It has a cast iron engine block and aluminum DOHC cylinder heads. The latest version of the 2.0L Beta engine ' features CVVT, which exists only on the intake side, a first for Hyundai/Kia. The following changes were noted.
In 2008 the Beta II was modified to produce and of torque.

Applications