Daedong DSC48, Workshop Manual

Page: 103 / 290

Apr. 2007
2
-27
DSC48
3.2.2 LUBRICATING SYSTEM
A. OIL PUMP
3.2.3 COOLING SYSTEM
A. RADIATOR
B. INJECTION NOZZLE
Injection sequence
1 → 3 → 4 → 2
(The cylinder number is given in order from the gear case end.)
CAUTION
3.2.4 FUEL SYSTEM
A. INJECTION PUMP
Item Factory speci fi cation Allowable limit
Engine oil pressure
(Oil temp.: 85 ~ 95°C) At idle speed 68.6 kPa
0.7 kgf/cm
2
9.95 psi
-
At rated speed 245 ~ 441 kPa
2.5 ~ 4.5 kgf/cm
2
35.6 ~ 64.0 psi
245 kPa
2.5 kgf/cm
2
35.6 psi
Clearance between inner rotor and outer rotor 0.10 ~ 0.16 mm
0.0039 ~ 0.0063 in.
0.2 mm
0.00787 in.
Clearance between outer rotor and pump housing 0.11 ~ 0.19 mm
0.0043 ~ 0.0078 in.
0.25 mm
0.0098 in.
Clearance between inner rotor and cover 0.105 ~ 0.150 mm
0.00413 ~ 0.00591 in.
0.2 mm
0.00787 in.
Item Factory speci fi cation
Radiator tightness No leak at 137 kPa, 1.4 kgf/cm
2
, 20 psi
Radiator cap 10 seconds or more for pressure falling from 88 to 59 kPa
from 0.9 to 0.6 kgf/cm
2
from 13 to 9 psi
Fan belt tension (de fl ection at 10 kgf of force) 7 ~ 9 mm
0.28 ~ 0.35 in.
Item Factory speci fi cation
Injection timing (BTDC) 18°
Item Factory speci fi cation
Fuel injection pressure 14.72 mPa
150 kgf/cm
2
2,134 psi
Fuel tightness of nozzle No leak at 12.74 mPa, 130 kgf/cm
2
, 1,849 psi