Technical data and maintenance Technical features of the engine
TECHNICAL FEATURES OF THE ENGINE
SPECIFIC DATA
Engine
AR 67204
AR 32301
Cycle
four-stroke Otto
Feed / ignition
Multi-Point Motronic M 2.10.3
Multi-Point Motronic M 2.10.4
Multi-Point Motronic M 1.5.5
Firing order
1 - 3 - 4 - 2
Piston displacement
cm³
1970
Cylinders' number
4 in line
Boring
mm
83
Stroke
mm
91
Maximum power
CV CEE (kW CEE)
150 (110)
155 (114)
revs/min
6200
6400
Pull-in Torque
kgm CEE (Nm CEE)
19 (187)
19.1 (187)
revs/min
4000
3500
Compression ratio
10 : 1
Pressure of the engine oil
bar
- At slow running
≥ 1.5
- At 4000 revs/min
≥ 4.5
Slow running
revs/min
800 ± 50
840 ± 50
840 ± 50
COMPLETE CYLINDER BLOCK
Cylinder block
Unit: mm
Diameter of main bearings "a"
56.705 ÷ 56.718
Length of shoulders for central main bearing "b"
21.720 ÷ 21.800
Cylinders' diameter "c"
Class A - Blue
83.000 ÷ 83.010
Class B - Pink
83.010 ÷ 83.020
Class C - Green
83.020 ÷ 83.030
Oversize by 0.1
Diameter of shoulder for counter-rotating shafts
Front and rear "d"
46.975 ÷ 47.000
Central "e"
39.979 ÷ 40.009
Oil pump
Clearance between pump seat and driven gear "a"
0.080 ÷ 0.186 mm
Clearance between face of the pump cover and upper side of gears "b"
0.025 ÷ 0.070 mm
Spring of pressure relief valve
Check load
6.4 ÷ 7.2 kg
Spring length
36 mm
02 Maintenance
