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Items
D28 series
Remarks
Timing
Bush assembly’s inside diameter of block
70.077 ~ 70.061
Camshaft diameter
69.910 ~ 69.940
70 e7
Camshaft bearing oil gap
0.060 ~ 0.120
Camshaft axial direction play
0.20 ~ 0.90
Backlash (crank gear-camshaft gear)
0.118 ~ 0.242
Backlash (driving gear - injection pump gear)
0.102 ~ 0.338
Intake valve clearance
0.25
Exhaust valve clearance
0.35
Engine
Oil pressure at idling
0.9 ~ 3.0bar
lubricating Oil pressure at rated speed operation
3.0 ~6.5bar
system
Oil temperature
less than 100
˚C
Instantaneous allowable temperature
max. 110
˚C
Bypass valve opening pressure
1.8 ~ 2.4bar
Pressure regulating valve of oil pump
8.5 ~10bar
Spray nozzle
Operating pressure
1.6 ~ 1.9bar
Crossing pressure
1.3 ~ 1.6bar
Tip diameter
2
Backlash (crankshaft gear-oil pump drive gear)
0.10 ~0.45
Oil pump housing’s depth/gear width
43.000 ~ 43.039
43 H8
42.910 ~ 42.950
43 e8
Oil pump housing axial play
0.050 ~ 0.128
Engine
Cooling water pump shaft diameter
21.930 ~ 21.950
cooling
Bearing gap
0.050 ~ 0.091
system
Impeller clearance (impeller - body)
1.0 ~ 1.5
Thermostat Operating temperature (
˚C
)
71
˚C
Inspection Good
28bar over
on
Possible to use
25 ~ 28bar
compressed Limit for use
24bar or less
pressure Allowable max pressure difference between cylinders
4bar
Fuel
Overflow valve’s operating pressure of injection pump
1.3 ~ 1.8bar
system
Mode of fuel injection pump
Bosch
Governor model
Ghana-Control
(DWA-2000)
Injection nozzle’s manufacture
Bosch
Injection nozzle hole’s diameter
4 - 0.40
