| 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 Emmisions | |
| 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) |