Mitsubishi S3L User Manual

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Service Manual Mitsubishi SL-Series diesel engines
Version 08/2004
CYLINDER HEAD AND VALVE
MECHANISM
ENGLISH
INSPECTION
17.1 Cylinder head
Using a heavy accurate straight edge and a feeler
gauge, check the bottom face for warpage in three
positions lengthwise, two crosswise and two widthwise
as shown in the illustration. If warpage exceeds the
limit, reface the bottom face with a surface grinder.
Unit: mm (in.)
17.2 Rocker arms and rocker shaft
Measure the bore in the rocker arm for the rocker shaft
and the diameter of the rocker shaft to find the
clearance between the arm and shaft. If the clearance
has reached the limit, replace the rocker arm. If it
exceeds the limit, replace both arm and shaft.
Unit: mm (in.)
Figure 64 Checking cylinder head bottom face for
warpage
Item Standard Limit
Warpage of cylinder
head bottom face
0.05 (0.002 0)
maximum
0.10
(0.003 9)
Figure 65 Measuring rocker arm and rocker shaft
Item
Nominal
size
Standard Limit
Bore in rocker
arm for shaft
18.9
(0.744)
18.910 to
18.930
(0.744 49 to
0.745 27)
—
Diameter of shaft
for arm
18.9
(0.744)
18.880 to
18.898
(0.743 31 to
0.744 01)
—
Clearance
between rocker
arm and shaft
— 0.012 to
0.050
(0.000 47 to
0.001 97)
0.200
(0.007
87)

Mitsubishi S3L Specifications

General

Brand	Mitsubishi
Model	S3L
Category	Engine
Language	English