The Hyundai Beta engines are 1.6 L to 2.0 L I4 built in Ulsan, South Korea. All Beta engines are dual overhead camshaft valvetrain (DOHC) design. The Beta 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 Beta 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 Beta versions are equipped with a Distributorless Ignition System (DIS). The system consists of the ignition coil assembly, Camshaft Position Sensor (CMP), Powertrain Control Module (PCM), spark plug wires and spark plugs. The Beta engine family includes the following engine codes: G4GR, G4GB, G4GC, G4GF and G4GM. Beta 1.6L (G4GR) The 1.6-liter Beta (Engine code: G4GR) is an in-line, spark-ignition 4-stroke, dual overhead camshaft (DOHC) 16 valve engine and had two (2) variants depending on the vehicle's sub-model. Advertised power was 66 kW/ 89 hp/ 90 PS (ECE) and 126 Nm/ 93 lb-ft of torque or 84 kW/113 hp/114 PS (ECE) with 143 Nm / 105 lb-ft of torque depending on market and application. The 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. Specification: 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(Limit: BTDC 10°± 5°/800 rpm) Cylinder bore: 77.40 mm -77.43 mm Out-of-roundness and taper of cylinder bore: 0.01 mm Clearance with piston: 0.02mm - 0.04 mm Piston: Piston O.D.: 77.37-77.40 mm Piston Service size: 0.25, 0.50, 0.75, 1.00 mm (0.010, 0.020, 0.030, 0.039 in.) oversize Valve Guide: Installed dimension O.D. (Intake): 14 mm (0.551 in.) Installed dimension O.D. (Exhaust): 14 mm (0.551 in.) Service size: 0.05, 0.25, 0.50 mm (0.002, 0.010, 0.020 in.) oversize The 2nd generation Elantra (J2) and 1997-2000 Hyundai Coupe (RD) were equipped with Beta I G4GR engine and were distributed primarily within the European, Russian, Middle East and parts of Asian General Market. The vehicles sold in this market were