Nanni N4.40, Workshop Manual

Page: 87 / 175

ENGINE
03-M-E3B, 03-M-DI-E3B, 03-M-E3BG, WSM
1-S17
LUBRICATING SYSTEM
COOLING SYSTEM
Item Factory Specification Allowable Limit
Engine Oil Pressure At Idle Speed
At Rated Speed
More than
98 kPa
1.0 kgf/cm
2
14 psi
300 to 440 kPa
3.0 to 4.5 kgf/cm
2
43 to 64 psi
50 kPa
0.5 kgf/cm
2
7 psi
250 kPa
2.5 kgf/cm
2
36 psi
Engine Oil Pressure Switch Working Pressure 50 kPa
0.5 kgf/cm
2
7 psi
–
Inner Rotor to Outer Rotor Clearance 0.030 to 0.14 mm
0.0012 to 0.0055 in.
0.2 mm
0.008 in.
Outer Rotor to Pump Body Clearance 0.11 to 0.19 mm
0.0044 to 0.0074 in.
0.25 mm
0.0098 in.
Inner Rotor to Cover Clearance 0.105 to 0.150 mm
0.00414 to 0.00590 in.
0.20 mm
0.008 in.
Item Factory Specification Allowable Limit
Fan Belt Tension 7.0 to 9.0 mm (0.28 to
0.35 in.) deflection at
98 N (10 kgf, 22 lbf) of
force
–
Thermostat Valve
[D1503-M, D1703-M, D1803-M, V2003-M,
V2203-M, V2403-M, V2403-M-T,
D1703-M-BG, V2003-M-BG,
V2003-M-T-BG, V2203-M-BG,
V2403-M-BG]
Opening-
Temperature
(When the valve
starts to open)
Opening-
Temperature
(When the valve
opened
completely)
69.5 to 72.5 °C
157.1 to 162.5 °F
85 °C
185 °F
–
–
Thermostat Valve
[D1803-M-DI, V2403-M-DI, V2403-M-DI-T]
Opening-
Temperature
(When the valve
starts to open)
Opening-
Temperature
(When the valve
opened
completely)
80.5 to 83.5 °C
176.9 to 182.3 °F
95 °C
203 °F
–
–
Radiator Water Tightness No leak at
specified pressure
–
Radiator Cap Pressure
Decreasing Time More than 10 seconds
for pressure decrease
from 90 to 60 kPa
from 0.9 to 0.6 kgf/cm
2
from 10 to 9 psi
–
KiSC issued 06, 2009 A