C 16 XE Engine (4 Cylinder DOHC Engine)
General
The GSi uses the newly developed C 16 XE engine.
This is a 1.6 litre engine with 16 valves and two overhead camshafts (DOHC).
The new Multec-S combined ignition and injection system is used.
This engine is based on the family I engine with the following modifications:
Cylinder head
- Aluminium cylinder head with 2 overhead camshafts
- Spark plugs positioned centrally with water duct around spark plug boss
Dual ignition coil mounting
- Valve angle 43°
- Valve diameter: intake 30.5 mm; exhaust 27.5 mm
- Hydraulic valve lifters, Æ32 mm
- Cylinder head bolts, external torx M 10 x 1.25
- Camshaft sensor
- Cylinder head cover with integrated dual circuit blow-by system
- Cast dual exhaust manifold with thread for oxygen sensor
- Spark plug change interval only every 4 years / 60,000 km / 37,000 miles
Crank drive
- Toothed belt pulley fastened to crankshaft with torx bolt
- Pot flywheel fastened to crankshaft with 7 bolts
- Oil pan made out of aluminium
"Broken" connecting rods
Engine management system
The engine management system in the C 16 XE engine is the new Multec-S with:
- Sequential fuel injection
- Cylinder-selective knock control
- DIS (Direct Ignition System)
- Twin jet injection valves