7
3.
General information
3.1.
Technical data
Type
1D41.
1D50.
1D81.
1D90.
Engine models
S, Z, C
S, Z
S, Z, C
S, Z
Mode of operation
air-cooled four-stroke diesel engine
Combustion method
Direct-fuel injection
Number of cylinders
1
1
1
1
Bore / stroke
mm
90 / 65
97 / 70
100 / 85
104 / 85
Displacement
cm³
413
517
667
722
Engine oil content without filter
approx. L
1.1
1)
1.4
1)
1.8
1)
1.8
1)
with filter
approx. L
1.2
1)
1.5
1)
1.9
1)
1.9
1)
Volume of oil between
„max“ and „min“ marks
approx. L
0.4
1)
0.5
1)
0.9
1)
0.9
1)
Consumption of lubrication oil
after running-in period
approx. 1 % of fuel consumption at full load
Engine oil pressure
Oil termperature 100 ± 20 °C
min. 0.6 bar at 850 r.p.m.
Direction of rotation
looking at the flywheel
counterclockwise
Valve clearance at 10 - 30 °C
Inlet
mm
0.20
0.10
0.10
0.30
Exhaust
mm
0.20
0.20
0.20
0.30
Max. angle from vertical in any
direction (continuous operation)
max.
30°
2)
30°
2)
30°
2)
30°
2)
Weight
(incl. fuel tank, air-cleaner,
exhaust silencer and electric starter)
Engine model S
approx. kg
75
76
89
90
Engine model Z
approx. kg
77
78
91
92
Engine model C
approx. kg
96.5
–
121
Model
S:
non-encapsulated, normal system of balancing
Z:
non-encapsulated, add. system of balancing
C:
SILENT PACK, add. system of balancing
1)
These data are approx.-values. The
max.
mark on oil dipstick counts.
2)
Exceeding these limits causes engine breakdown.
