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SERVICE STANDARDS
1 - 12
1. Service
Standards
Table
Unit: mm (in.)
Gro
up
Item
Nominal
value
Standard value
Limit
Remarks
Max. speed
(based on the rated speed)
2700
+30
-10
min
-1
Min. speed
1000
±
25 min
-1
Compression pressure
(at 290 min
-1
)
2.9 MPa (30 kgf/cm
2
)
[421 psi]
or above
2.6 MPa
(27 kgf/cm
2
)
[377 psi]
or less
Both oil and coolant
temperatures at 20 to
30
℃
(68 to 86
°
F
)
Rated speed
0.29 to 0.39 MPa
(3.0 to 4.0 kgf/cm
2
)
[42.07 to 56.57 psi]
En
gi
ne oi
l
pres
su
re
Low idle speed
0.098 MPa
(1.0 kgf/cm
2
)
[14.22 psi]
Oil temperature at
60 to 95
℃
(140 to
194
°
F
)
Inlet valve
open
BTDC 15
°
Inlet valve
closed
ABDC 41
°
Exhaust valve
open
BBDC 54
°
Valve timing [with
2 mm (0.079 in.)
clearance on the
valve side; cold
engine]
Exhaust valve
closed
ATDC 10
°
The theoretical valve
timing figures for
inspection vary from
the actual valve
timing.
Inlet valve
0.25 (0.01)
Valve clearance
Exhaust valve
0.25 (0.01)
Cold engine
Engine g
ene
ral
Fuel injection timing (BTDC)
17
°
Rocker arm inner diameter
φ
19
(0.749)
18.910 to 18.930
(0.7450 to 0.7458)
―
Rocker shaft diameter
φ
19
(0.749)
18.880 to 18.898
(0.7438 to 0.7445)
―
Ro
ck
er
Arm-to-shaft clearance
(oil clearance)
0.012 to 0.050
(0.0004
to 0.0019)
0.200
(0.0079)
Replace rocker arm.
Inlet
φ
6.6
(0.260)
6.565 to 6.580
(0.2586 to 0.2592)
6.500
(0.256)
Valve stem diameter
Exhaust
φ
6.6
(0.260)
6.530 to 6.550
(0.2572 to 0.2580)
6.500
(0.256)
Inlet
φ
6.6
(0.260)
6.600 to 6.615
(0.2600 to 0.2606)
Valve guide inner
diameter
Exhaust
φ
6.6
(0.260)
6.600 to 6.615
(0.2600 to 0.2606)
Inlet
0.020 to 0.050
(0.0008 to 0.0020)
0.100
(0.004)
Va
lv
e
Valve stem-to-guide
clearance
Exhaust
0.050 to 0.085
(0.0020 to 0.0033)
0.150
(0.006)
Replace valve and
valve guide.
Valve seat angle
45
°
Valve head sinkage
0
0.25 to 0.75
(0.0098 to 0.0295)
1.5
(0.0591)
Valve seat width
1.6
(0.063)
1.30 to 1.80
(0.0512 to 0.0709)
2.5
(0.0985)
Valve head margin
1.5
(0.0591)
1.35 to 1.65
(0.0531 to 0.0650)
0.5
(0.0197)
Engine mai
n
p
a
rt
s
V
alve seat a
nd
valve
Installed valve guide protrusion
10
(0.394)
9.5 to 10.5
(0.3743 to 0.4137)
―
Valve seat width
Valve
seat
angle
Valve
head
margin
Valve head
sinkage
Summary of Contents for diesel engines
Page 5: ......
Page 33: ...SERVICE STANDARDS 1 20 ...
Page 34: ...1 General Tools 1 22 2 Special Tools 1 23 TOOLS LIST ...
Page 37: ...TOOLS LIST 1 24 ...
Page 41: ...OVERHAUL TIMING 1 28 ...
Page 46: ......
Page 47: ......
Page 61: ...ENGINE MAIN PARTS DISASSEMBLY 2 16 ...
Page 99: ...FUEL SYSTEM REMOVAL 3 8 ...
Page 115: ...FUEL SYSTEM DISASSEMBLY INSPECTION AND REASSEMBLY 3 24 ...
Page 119: ...FUEL SYSTEM INSTALLATION 3 28 2 Governor Installing the governor Installation sequence ...
Page 123: ...FUEL SYSTEM INSTALLATION 3 32 ...
Page 131: ...OIL SYSTEM DISASSEMBLY INSPECTION AND REASSEMBLY 4 8 ...
Page 143: ...COOLING SYSTEM DISASSEMBLY INSPECTION AND REASSEMBLY 5 8 ...
Page 150: ......
Page 151: ......
Page 153: ...INLET AND EXHAUST SYSTEMS REMOVAL 6 4 ...
Page 159: ...INLET AND EXHAUST SYSTEMS INSTALLATION 6 10 ...
Page 160: ...1 Starter 7 2 2 Alternator 7 3 3 Stop Solenoid 7 4 4 Glow Plug 7 5 ELECTRICAL SYSTEM REMOVAL ...
Page 165: ...ELECTRICAL SYSTEM REMOVAL 7 6 ...
Page 189: ...ELECTRICAL SYSTEM INSTALLATION 7 30 ...
Page 207: ...MISCELLANEOUS 9 4 ...