Mitsubishi Heavy Industries SL Series User Manual

SERVICE DATA
2-4
Piston ring
Clearance between piston
ring and ring groove
No.1 compres-
sion ring
0.09 to 0.11
[0.0035 to 0.0043]
0.30
[0.0118]
Use the piston with replac-
ing the piston rings until
reaching the limits. when
reaching the limits, replace
the piston.
No.2 compres-
sion ring
0.07 to 0.11
[0.0028 to 0.0043]
0.20
[0.0079]
Oil ring
0.03 to 0.07
[0.0012 to 0.0028]
0.20
[0.0079]
Piston ring end gap
No.1 compres-
sion ring
0.15 to 0.30
[0.0059 to 0.0118]
1.50
[0.0591]
Replace
No.2 compres-
sion ring
0.15 to 0.35
[0.0059 to 0.0138]
Oil ring
0.20 to 0.40
[0.0079 to 0.0157]
Connect-
ing rod
Bend and torsion
0.05/100
[0.0020/3.94] or less
0.15/100
[0.0059/
3.94]
End play
0.10 to 0.35
[0.0039 to 0.0138]
0.50
[0.0197]
Replace connecting rod
Crankshaft
Crank journal outside diameter
ø 52
[2.05]
51.985 to 52.000
[2.0466 to2.0472]
Crank pin outside diameter
ø 48
[1.89]
47.950 to 47.965
[1.8878 to 1.8883]
Crankshaft runout 0.025 [0.0010] or less
0.050
[0.0020]
Repair or replace
Main bearing oil clearance
0.030 to 0.077
0.0012 to 0.0030
0.100
[0.0039]
Replace main bearing
Connecting rod bearings oil clearance
0.025 to 0.072
[0.0010 to 0.0028]
0.150
[0.0059]
Replace connecting rod
bearings
End play
0.050 to 0.175
[0.0020 to 0.0069]
0.500
[0.0197]
Replace flanged No.3 main
bearings
Timing
gear back-
lash
Between crankshaft gear and idler gear
0.04 to 0.12
[0.0016 to 0.0047]
0.30
[0.0118]
Replace
Between idler gear and valve camshaft gear
Between idler gear and pump camshaft gear
Between valve camshaft gear and PTO gear
0.08 to 0.19
[0.0031 to 0.0075]
Between pump camshaft gear and oil pump
gear
0.07 to 0.20
[0.0028 to 0.0079]
Cam height of camshaft (major axis)
35.62 to 35.82
[1.4024 to 1.4102]
34.72
[1.3669]
Replace
Cam height of fuel injection pump camshaft (major axis)
43.9 to 44.1
[1.728 to 1.736]
43
[1.69]
Replace
Flywheel flatness 0.15 [0.0059] or less
0.50
[0.0197]
Repair
Clearance between tappet and cylinder block bore
0.15
[0.0059]
Replace tappet
Clearance between camshaft journal and bushing
0.05 to 0.125
[0.0020 to 0.0049]
0.15
[0.0059]
Replace
Clearance between idler gear bushing and idler shaft
0.02 to 0.07
[0.0008 to 0.0028]
0.20
[0.0079]
Replace idler gear or idler
shaft
Table 2-2 Maintenance service data table - Basic engine (3 / 3) Unit: mm [in.]
Inspection point Nominal Standard Limit Remark

Mitsubishi Heavy Industries SL Series Specifications

General

Brand	Mitsubishi Heavy Industries
Model	SL Series
Category	Engine
Language	English