Engine specifications

Make

Alfa Romeo

Model

145/146 Factory Service Manual

Year

1994–1999

Section

Engine › Engine specifications

Technical data and maintenanceEngine specifications

ENGINE SPECIFICATIONS

TECHNICAL DATA

	Engine type	AR 33401
Cycle	Otto 4-stroke
Fuel/ignition system	Multi - Point Motronic M 2.10.3
Firing order	1 - 3 - 2 - 4
Displacement	cm3	1712
Number of cylinders	4 horizontal opposed
Bore	mm	87
Stroke	mm	72
Maximum power	HP CEE (kW CEE)	129 (95)
Maximum torque	kgm CEE (Nm CEE)	15.1 (148)
Compression ratio	10 : 1
Engine oil pressure (with engine oil at 100°C)	bar	> 0.8
- At idle speed	> 4
Idle r.p.m.	rpm	900 ± 50
Maximum power rpm	6500
Maximum torque rpm	4300

COMPLETE CRANKCASE

Crankcase

Unit: mm
Cylinder diameter "a"	Class A - Blue	87.000 ÷ 87.010
	Class B - Pink	87.010 ÷ 87.020
	Class C - Green	87.020 ÷ 87.030
	Class D - Yellow	87.030 ÷ 87.040
	Class E - White	87.040 ÷ 87.050
	Oversize 0.2	87.200 ÷ 87.210
	Oversize 0.4	87.400 ÷ 87.410
	Oversize 0.6	87.600 ÷ 87.610
Diameter of main bearings "b"	63.663 ÷ 63.673
Width of rear main bearing shoulder "c"	23.68 ÷ 23.73

(*) Area for dimensional control

Crankshaft

Unit: mm
Diameter of connecting rod pins "a"	Class A - Red	49.992 ÷ 50.000
	Class B - Blue	49.984 ÷ 49.992
Diameter of main bearing journals "b"	Class A - Red	59.954 ÷ 59.964
	Class B - Blue	59.944 ÷ 59.954
Width of rear main bearing shoulder "c"	28.51 ÷ 28.55

02 Maintenance