Service Data - Mitsubishi S6S-Y3T61HF Service Manual

SERVICE DATA

Inspection point
Outside diameter
(at piston skirt)
Piston
Protrusion from crankcase
Weight difference in one engine
Clearance between
piston ring groove
Piston ring
Closed gap of ring
Outside diameter
Piston pin Clearance between piston pin
Clearance between connecting rod bushing
Bushing inside diameter
Bend and twist
Connecting
Clearance between crankpin and connect-
rod
ing rod bearing (oil clearance)
End play
Weight difference of connecting rod assem-
bly in one engine
Flatness
Flywheel
Runout
Perpendicularity runout
Damper
Periphery runout
2-4
Table 2-2 Maintenance service data table - Basic engine (2 / 4)
STD
0.25 [0.0098]/OS
0.50 [0.0197]/OS
No.1
2.5 [0.098]
compression ring
No.2
2.0 [0.079]
compression ring
Oil ring 4.0 [0.157]
No.1
compression ring
No.2
compression ring
Oil ring
Nominal Standard
93.955 to 93.985
[3.6990 to 3.7002]
ø 94 94.205 to 94.235
[3.70] [3.7089 to 3.7100]
94.455 to 94.485
[3.7187 to 3.7199]
-0.25 to 0.15
[-0.0098 to 0.0059]
5 g
[0.2 oz.] or less
0.07 to 0.11
[0.0028 to 0.0043]
0.045 to 0.085
[0.0018 to 0.0033]
0.020 to 0.060
[0.0008 to 0.0024]
0.30 to 0.50
[0.0118 to 0.0197]
0.50 to 0.70
[0.0197 to 0.0276]
0.30 to 0.50
[0.0118 to 0.0197]
ø 30 29.994 to 30.000
[1.18] [1.1809 to 1.1811]
0.000 to 0.016
[0.0000 to 0.0006]
0.020 to 0.091
[0.0008 to 0.0036]
ø 30 30.020 to 30.045
[1.18] [1.1819 to 1.1829]
0.05/100
[0.0020/3.94]
or less
0.030 to 0.090
[0.0012 to 0.0035]
0.15 to 0.35
33 [1.30]
[0.0059 to 0.0138]
10 g
[0.35 oz.] or less
0.15
[0.0059] or less
0.15
[0.0059] or less
0.5
[0.020] or less
0.5
[0.020] or less
Unit: mm [in.]
Limit Remark
93.770
[3.6917]
94.020
[3.7016]
94.270
[3.7114]
Bearing clearance check.
0.200
Use the piston with replac-
[0.0079]
ing
the piston rings until reach-
0.150
ing
[0.0059]
the limits.
when reaching the limits,
0.150
replace the piston.
[0.0059]
1.50
[0.0591]
1.50
[0.0591]
1.50
[0.0591]
0.050
[0.0020]
0.120
[0.0047]
0.15
[0.0059]
Use connecting rod with
replacing bearing until
reaching the limit.
0.200
when exceeding the limit,
[0.0079]
re-gring the crankpin and
replace the bearing with
under size.
0.50
Replace connecting rod.
[0.0197]
0.50
[0.0197]
0.50
[0.0197]
1.5
[0.059]
Replace with a new one
after operating 8000 hours.
1.5
[0.059]