Technical specifications (Opel Vectra B)

Type	Four-cylinder, single overhead cam engine shaft driven by a toothed belt and hydraulic tappets
Engine
Engine code	X16SZR
Cylinder diameter	79 mm
Piston stroke	81 mm
Working volume	1598 cm³
Cylinder firing order	1–3–4–2 (cylinder N1 is located on the gear side belt)
Direction of rotation of the crankshaft	clockwise (if viewed from the toothed side belt)
Compression ratio	9,6/1
Power	55 kW at 5200 rpm
Maximum torque	128 Nm at 2000 rpm
Compression pressure:
Nominal	12 – 15 bar
Maximum difference between any two cylinders	1 bar
Camshaft
Axial play	0.09 – 0.21 mm
Cam lift:
- inlet valve	5.61 mm
- exhaust valve	6.12 mm
Lubrication system
Oil pump driven directly from the crankshaft
– minimum permissible oil pressure at revolutions idle and with the engine warmed up	1.5 bar
– clearance between pump gear teeth	0.08 – 0.15 mm
- axial clearance	0.1 – 0.2 mm

Tightening moments

Camshaft cover mounting bolts	8 Nm
Camshaft pulley mounting bolt	45 Nm
Camshaft thrust plate mounting bolt	8 Nm
Camshaft End Cover Fastening Bolts	8 Nm
Connecting rod lower head cover mounting bolts:
- stage 1	25 Nm
- stage 2	turn to an angle of 30°
Water pump mounting bolts	8 Nm
Crankshaft Pulley Bolt:
- stage 1	55 Nm
- stage 2	turn to an angle of 45°
- stage 3	turn by 15°
Cylinder head mounting bolts:
- stage 1	25 Nm
- stage 2	turn to an angle of 60°
- stage 3	turn to an angle of 60°
- stage 4	turn to an angle of 60°
Drive plate mounting bolts	60 Nm
Front right powertrain suspension:
- bolts for mounting the suspension to the engine	60 Nm
– suspension mounting bolts to the lower frame	45 Nm
Rear support:
- mounting bolts to the bracket	45 Nm
- mounting bolts to the lower frame	20 Nm
- gearbox mounting bolts	60 Nm
Gearbox to engine mounting bolts:
– M8 bolts	20 Nm
– M10 bolts	40 Nm
– M12 bolts	60 Nm
Flywheel mounting bolts:
- stage 1	35 Nm
- stage 2	turn to an angle of 30°
- stage 3	turn by 15°
Main bearing cap mounting bolts:
- stage 1	50 Nm
- stage 2	turn to an angle of 45°
- stage 3	turn by 15°
Oil pump mounting bolts	8 Nm
Oil pump cover mounting bolts	6 Nm
Oil pump relief valve mounting bolts	30 Nm
Bolts securing the mesh filter to the oil pump	8 Nm
Steel Oil Pan Mounting Bolts	10 Nm
Cast Oil Pan Mounting Bolts	8 Nm
Drain plug in steel pan	55 Nm
Drain plug in cast pan	45 Nm
Upper and lower timing belt covers	4 Nm
Rear timing belt cover	12 Nm
Timing Belt Tensioner Mechanism	20 Nm