Service manual
ENGINE
INSPECTION
8,
For
the
measurement on both
the
crank
pin
and
the
main journal, measure them at vertical
and
horizontal
directions
on
front and rear
places.
b, When refinishing the crankshaft, it's
finish
to
Rl
mm
as
shown in
the
diagram.
c,
Refer
to
the
chart for refinishing
dimensions
of
the
crankshaft
where
an undersize
bearing
is
used.
-
~1-=-3.71~.~3.~gg~m~m~e!IJ==~~~~~~
I
(0.146·
0.157
In)
R2
=
3.20
.
3.61
mm
.
(0.126·0.142
in)
Undersize
bearing
0.254
mm
(0.01
in)
0.508
mm
(0.02
in)
0.762
mm
(0.03
in)
Undersize
bearing
0.254
mm
(0.01
in)
0.508
mm
(0.02
in)
0.762
mm
(0.03
in)
Undersize
bearing
0.254
mm
(0.01
in)
0.508
mm
(0.02
in)
0.762
mm
(0.03
in)
Undersize
bearing
0.254
mm(O.Ol
in)
0.508
mm
(0.02
in)
0.762
mm
(0.03
in)
71B
Crank
pin
diameter
56.868
-
56.871
mm
(2.2389
-
2.2391
in)
56.604
-
56.617
mm
(2.2285
-
2.2312
in)
56.350
-
56.363
mm
(2.2185
-
2.2191
in)
Main
journal
diameter
69.558
-
69.571
mm
(2.
7385
-
2.
7391
in)
69.304
-
69.317mm
(2.7182
-2.7291
in)
69.050-
69.063
mm
(2.7185
-2.7191
in)
71C
Crankpin~
52.
733
-
52.
746
mm
(2.0761
-
2.0766
in)'
52.479
-
52.492.
mm
(2.0661
~
2.0666
in)
52.225
~
52.238
mm
(2.0561
-
2.0566
!It))
Main
jour1llll
diameter
64.733
-
64.746
mm
(2.5485
-
2.5491
in)
!
64.479
-
64.492
mm
(2.5385
~
2.5391
in)
64.225
-
64.238
min
(2.5285
-
2.5291
in)'
4. Inspecting crankshaft end play. Check
the
end
play
of
the
crankshaft
and,
if
the end play exceeds
the
limit,
replace
the
thrustwasher with 0.178
mm
(0.007
in)
oversize.
Crankshaft end
play
is
measured
by
setting a dial
gauge
on
the
rear end of
the
crankshaft
and
moving
the
crankshaft in
the
axial direction.
Crankshaft
End
Play
71Bn1C
Standard: 0.14 -
0.39
mm (0.0055 -
0.0153
in)
End
play limit: 0.40
mm
(0.0157 in)
5. Inspecting main bearing. Check the
main
bearing
for
peeling, seizure or fusion
and,
if
necessary,
replace
the
bearing.
6.
Inspecting main bearing clearance.
Using
the
plastigauge, measure
the
oil clearance
and,
if
it exceeds
the
limit, replace
the
main
bearing.
Oil Clearance
71 B Standard:
0.059 - 0.090
mm
(0.0020 - 0.0040 in)
Limit:
0.12
mm
(0.005 in)
71C
Standard: 0.040 - 0.091
mm
(0.0016 - 0.0036 in)
Limit: 0.12
mm
(0.005 in)
Main Bearing
Cap
71
Bn1
C lightening
torque:
11.0
-11. 7 m-kg
(80
-
85
ft-lb)
CAMSHAFT
1. Visual Inspection. Check the camshaft for cracks
and
damage.
If
necessary, replace the camshaft.
2.
Inspecting cam
height.
Measure
the
cam height
and,
if
it
is
less than the limit, replace the camshaft.
71Bn1C
Cam height limit: 42.478
mm
(1.6724 in)
INTAKE
AND
EXHAUST
CAM
~H"G~IW
3. Inspecting
camshaft
journal. Check
the
camshaft
journal
and,
if
wearing exceeds the limit, replace
the
camshaft.
No.1
No.2
No.3
No.4
Front
71
B Diameter
of
Journal
51.910
-
51.940
mm
(2.0437
-
2.0449
in)
51.660
-
51.690
mm
(2.0339
-
2.0351
in)
51.410
-
51.440
mm
(2.0240
-
2.0252
in)
51.160
-
51.190
mm
(2.0142
-
2.0154
in)
71
C Diameter
of
Journal
52.06 -
52.09
mm
(2.0497 -
2.0508
in)
Center
51.81
- 51.84
mm
(2.0398
-
2.0409
in)
Rear
51.31
-
51.34
mm
(2.0201
-
2.0212
in)
Wear
Limit
0.008mm
(0.0003
in)
Wear
Limit
0.008mm
(0.0003
in)
1'WV"wesiERBEICE
I
Engines
& Generators
20