GW ENGINE DATA

Engine code GW
Capacity 1913cc³
Number of cylinders/type 4/overhead valve
Production run 10/1983 – 7/1985
Output 66kW – 90bhp DIN @ 4600RPM
Torque 147Nm @ 2800 RPM.
Bore 94 mm
Stroke 68.9 mm
Compression ratio 8.6:1
Minimum octane rating 98 RON
Ignition system transistorized hall effect
Trigger location distributor
Fuel system Bosch
Type Digijet.
Description
Valve timing at 1mm lift.
Inlet opens 5° BTDC
Inlet closes 34° ABDC
Exhaust opens. 38° BBDC
Exhaust closes. 4°ATDC
Valve dimensions.
Inlet head diameter. 40 mm
Inlet stem diameter. 7.96 – 7.97 mm
Inlet overall length. 122.5 mm
Inlet valve seating face angle. 45°
Exhaust head diameter 34mm
Exhaust stem diameter 8.91 – 8.92 mm
Exhaust overall length 122.5
Exhaust valve seating face angle 45°
Tuning and Emissions
ignition coil supply voltage 11 volts
primary resistance
secondary resistance
firing order 1 – 4 – 3 – 2
distributor part number
ignition timing 10° +/- 1° @ 880 with vacuum disconnected/dual vac? discon+plug both.
Ignition advance checks
vacuum advance range
idle speed
oil temp for CO test
CO content @ idle
HC content @ idle
Service checks and adjustments.
Spark plugs Bosch W7DTC ( W7CCO 1985-1992)
electrode gap .7mm
valve clearance hydraulic
compression pressure 10-13 bar (150 psi-195psi)
oil pressure @ 80°c 2 bar @ 2000RPM
Lubricants and capacities.
Engine oil grade 10W30 (SF)
engine oil capacity with filter 4.5 litres
gearbox oil grade 80W-90W GL4
gearbox oil capacity 3 litres
autobox oil grade dexron (final drive type 90W)
autobox capacity 3 litres (final drive capacity .75 litres)