16LZ2 OPEL / VAUXHALL

OPEL / VAUXHALL 16LZ2 Engine

Engine overview

Manufacturer

OPEL / VAUXHALL

Factory specifications

Values from the manufacturer documentation for this engine.

Engine (general)

Engine code	16 LZ2
Capacity	1598 cc
Idle speed	770 - 930 720 rpm
Normal	12.0 - 15.0 bar
Minimum	9.0 bar
Differential limit between cylinders	1.0 bar
Oil pressure	1.5 / 720 - 1030 bar/rpm
Idle speed	800 - 960 rpm
Normal	12.0 - 15,0 bar
Oil pressure	1.5 / 800 - 960 bar/rpm

Engine (petrol)

Fuel system (make and type)	Multec
Number of cylinders	4
Firing order	1-3-4-2
Spark plugs (make and type)	Bosch FR 8LDC Bosch FR 8LDCU
Spark plug gap	0.7 - 0.8 mm
Fuel pump pressure	3.0 bar
CO exhaust gas	0.5 - 1.0 %
CO at fast-idle speed	< 0.3 %
Lambda	0.97 - 1.03
Oil temperature during test	80 °C
Fuel system (make and type)	Rochester Multec
Spark plugs (make and type)	Bosch FR 8LDC Bosch FR 8LDC4
Injection pressure/system pressure	0.76 bar

Cooling system

Cap pressure	1.2 - 1.5 bar
Thermostat opens at	92 °C
Fan on at	100 °C

Electrical

Battery	55 Ah
Battery	36 Ah
Alternator	70 A

Brakes

Disc thickness, front, min.	21.0 mm
Disc thickness, rear, min.	8.0 mm
Drum diameter, rear, max.	231 mm
Disc thickness, front, min.	9.7 mm
Disc thickness (ventilated), front, min.	17.0 mm
Drum diameter, rear, max.	201.0 mm

Steering and wheel alignment

Toe-in, front	+0°10' ± 0°10' °
Camber, front	-1°05 '± 0°45' °
Castor, front	3°50' ± 1° (1996->) 3°40' ± 1° (1998->) °
Toe-in, rear	0°25' ± 10' 0°27' ± 10' (1997->) 0°30' ± 10' (1998->) 0°27' ± 10' (1999->) °
Toe-in, rear	0°12' ± 10' 0°26' ± 10' (1997->) °
Camber, rear	-1°20' ± 35' -1°27' ± 35' (1997->) -1°37' ± 35' (06/1997->) -1°55' ± 35' (1998->) -1°27' ± 35' (1999->) °
Camber, rear	-0°38' ± 35' -1°19' ± 35' (1997->) -1°29' ± 35' (06/1997->) -1°19' ± 35' (1999->) °
Toe-out, front	-0°15' ± 0°10' °
Camber, front	-1°05' ± 0°45' °
Sport suspension	-0°40' ± 0°45'
Castor, front	2°15' ± 1°00' 1°30' ± 1°00' °
Toe-in, rear	0°10' ± 0°25' °
Camber, rear	-1°40' ± 0°30' °

Wheels and tyres

Tyre size	185/70/14
Optional	195/65/15
Front tyre pressure	2.1 bar
Rear tyre pressure	2.2 bar
Tyre size	155 / 80 13
Optional	175 / 70 13
Optional	175 / 65 14
Optional	195 / 55 15
Front tyre pressure	155 / 80 13: 2.2 175 / 70 13: 2.1 175 / 65 14: 2.1 195 / 55 15: 2.0 bar
Rear tyre pressure	155 / 80 13: 1.9 175 / 70 13: 1.8 175 / 65 14: 1.8 195 / 55 15: 1.7 bar

Capacities

Engine sump, incl. filter	4.0 l
Gearbox refill	1.9 l
Gearbox refill	3.0 - 3.5 l
Cooling system	6.9 l
Cooling system	7.1 l
Air-conditioner refrigerant	900 g
Air-conditioner compressor oil	295 ml
Engine sump, incl. filter	3.5 - 4.0 l
Gearbox refill	1.6 l
Cooling system	6.8 l
Air-conditioner refrigerant	700 (1993-1994)900 (1994-1998) g

Torque settings

Cylinder head bolts — Stage 1	25 Nm
Cylinder head bolts — Stage 2	90° °
Cylinder head bolts — Stage 3	90° °
Cylinder head bolts — Stage 4	90° °
Spark plugs	25 Nm
Wheel bearing unit to hub	50 Nm + 30° + 15° Nm
Wheel nuts	110 Nm
Cylinder head bolts — Stage 1	100 Nm
Cylinder head bolts — Stage 2	20 Nm
Cylinder head bolts — Stage 3	80° °
Rear hub	50 Nm + 30° / 45° Nm

Emissions

Emission code	70/220*1996/69
Emission standard	Euro 2
CO2 average	175 g/km
CO	0.130 g/km
HC NOx	0.130 g/km

Workshop procedures for this engine

Step-by-step procedures from the workshop database.

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Workshop data on this page last updated 22 Aug 2026.