Mitsubishi S4L User Manual

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Service Manual Mitsubishi SL-Series diesel engines
Version 08/2004
CYLINDER BLOCK, CRANKSHAFT,
PISTONS AND OIL PAN
ENGLISH
INSPECTION
2) Measure the diameter of the journal as shown
in the illustration to find the clearance between
the journal and main bearing.
.Unit: mm (in.)
3) If the clearance exceeds the limit, install a new
bearing and check the clearance again.
4) If the clearance still exceeds the limit, grind
the journal to 0.25 mm (0.009 8 in.), 0.50 mm
(0.019 7 in.) or 0.75 mm (0.029 5 in.)
undersize and use undersize main bearing.
Journal undersizes
Unit: mm (in.)
Figure 105 Measuring diameter of journal
Measuring diagram
Item
Norminal
size
Standard Limit
Diameter of
journal
(standard)
52
(2.05)
51.985 to
52.000
(2.046 65 to
2.047 24)
—
Clearance
between
journal and
main bearing
—
0.030 to 0.077
(0.001 18 to
0.003 03)
0.100
(0.003
94)
Figure 106 Journal fillet radius
2 mm (0.08 in.)
2 mm (0.08 in.)
Item Undersize Finish
Journal
0.25
(0.009 8)
51.75 (2.0374 )
0.50
(0.019 7)
51.50 (2.0276 )
0.75
(0.029 5)
51.25 (2.0177 )
CAUTION
• Grind all the journals of one crankshaft to the
same undersize.
• Finish the journal fillets to a radius of 2 mm
(0.08 in.).
0
-0.015
0
-0.00059
0
-0.015
0
-0.00059
0
-0.015
0
-0.00059

Mitsubishi S4L Specifications

General

Brand	Mitsubishi
Model	S4L
Category	Engine
Language	English