Mitsubishi S4L2 User Manual

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Service Manual Mitsubishi SL-Series diesel engines
Version 08/2004
SPECIFICATIONS
ENGLISH
SERVICE DATA
Timing gear
backlash
Crankshaft gear and idler gear
0.04 to 0.12
(0.001 6 to 0.004 7)
0.30 (0.011 8) Replace.
Idler gear and camshaft gear
Idler gear and fuel injection
pump camshaft gear
Camshaft gear and P.T.O.
gear
0.08 to 0.19
(0.003 1 to 0.007 5)
Fuel injection pump cam-shaft
gear and oil pump gear
0.07 to 0.20
(0.0028 to 0.0079)
Lobe height of camshaft 35.72 (1.406 3) 34.72 (1.366 9) Replace.
Lobe height of fuel injection pump camshaft 44 (1.73) 43 (1.69) Replace.
Flatness of flywheel 0.15 (0.005 9) maximum 0.50 (0.019 7) Replace.
Clearance between tappet and cylinder block — 0.15 (0.005 9) Replace tappet.
Clearance between camshaft journal
and bushing
— 0.15 (0.005 9) Replace bushing.
Clearance between idler gear and shaft
0.03 to 0.07
(0.001 2 to 0.002 8)
0.20 (0.007 9)
Replace idler
gear or shaft.
Warpage of cylinder block top face 0.05 (0.002 0) maximum 0.10 (0.003 9) Repair.
Bore in cylinder block
78.0
0
+0.03
(3.07
0
+0.0012
)
78.2 (3.079)
Hone out bore for
oversize piston or
replace cylinder block.
Taper and out-of-round of cylinder 0.01 (0.000 4) maximum —
Diameter
of piston
Standard
77.93 to 77.95
(3.068 1 to 3.068 9)
77.80 (3.063 0)
0.25 (0.0098)
oversize
78.18 to 78.20
(3.077 9 to 3.078 7)
78.05 (3.072 8)
0.50 (0.0197)
oversize
78.43 to 78.45
(3.087 8 to 3.088 6)
78.30 (3.082 7)
Clearance between piston pin and piston
0.006 to 0.018
(0.000 24 to 0.000 71)
0.050 (0.001 97)
Clearance
between
piston ring
and groove
No. 1 compression ring
0.06 to 0.10
(0.002 4 to 0.003 9)
0.30 (0.011 8)
Replace piston ring.No. 2 compression ring
0.05 to 0.09
(0.002 0 to 0.003 5)
0.20 (0.007 9)
Oil ring
0.03 to 0.07
(0.001 2 to 0.002 8)
0.20 (0.007 9)
Clearance
between
ends of
piston ring
No. 1 compression ring
0.15 to 0.30
(0.005 9 to 0.011 8)
1.50 (0.059) Replace piston ringNo. 2 compression ring
0.15 to 0.35
(0.005 9 to 0.013 8)
Oil ring
0.20 to 0.40
(0.007 9 to 0.015 7)
Clearance between piston and cylinder
0.035 to 0.086
(0.001 38 to 0.003 39)
0.300 (0.011 81)
Hone out bore for
oversize piston or
replace cylinder block.
Item Standard Limit Correction-Remarks

Mitsubishi S4L2 Specifications

General

Compression Ratio	22:1
Aspiration	Naturally Aspirated
Fuel System	Direct injection
Engine Model	S4L2
Starting System	Electric Starter
Cooling System	Water-cooled
Engine Type	4-stroke, water-cooled, diesel engine
Lubrication System	Forced lubrication