Infiniti Q45 (FY33). Manual - part 423
SEM569B
3.
Set piston rings as shown.
CAUTION:
I
When piston rings are not replaced, make sure that piston
rings are mounted in their original positions.
I
When replacing piston rings, these without punchmarks,
present, piston rings can be mounted with either side up.
SEM536E
I
Align piston rings so that end gaps are positioned as
shown in the figure.
SEM753C
CRANKSHAFT
1.
Set main bearings in their proper positions on cylinder block
and main bearing cap.
I
Confirm that correct main bearings are used. Refer to
“Inspection” of this section.
I
Apply engine oil to bearing surface.
SEM461F
2.
Install crankshaft, main bearing caps and beam and tighten
bolts to the specified torque.
I
Lubricate threads and seat surfaces of the bolts with new
engine oil.
I
Prior to tightening bearing cap bolts, place bearing cap in
its proper position by shifting in the axial direction.
I
Tightening procedure
1)
Tighten bolts (
q
1
-
q
20
) to
q
a
.
2)
Turn bolts (
q
1
-
q
20
)
q
b
degrees clockwise with angle
wrench.
3)
Tighten all bolts (
q
21
-
q
30
) to
q
c
.
Unit: N
⋅
m (kg-m, ft-lb)
Bolts
(
q
1
-
q
10
)
Bolts
(
q
11
-
q
20
)
Bolts
(
q
21
-
q
30
)
q
a
36 - 42
(3.7 - 4.3, 27 - 31)
26 - 32
(2.7 - 3.3, 20 - 24)
—
q
b
40
+5
-0
degrees
35
+5
-0
degrees
—
q
c
—
—
46 - 52
(4.7 - 5.3, 34 - 38)
GI
MA
LC
EC
FE
AT
PD
FA
RA
BR
ST
RS
BT
HA
EL
IDX
CYLINDER BLOCK
Assembly (Cont’d)
EM-53