Nissan Qashqai J11. Manual — part 102
CYLINDER BLOCK
EM-347
< UNIT DISASSEMBLY AND ASSEMBLY >
[K9K]
C
D
E
F
G
H
I
J
K
L
M
A
EM
N
P
O
29. Install the cover (G) and nut (H) (putting the threaded part (I) of
the nut on the side away from the engine) of front oil seal drift
set [SST: KV113B0210 (Mot. 1585)].
30. Tighten the nut until the cover touches the cylinder block.
31. Remove the nut, the cover, the protector and the threaded rod.
MBIB0496E
MBIB0497E
MBIB0498E
MBIB0499E
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[K9K]
CYLINDER BLOCK
32. Install ring gear stopper [SST: KV113B0060 (Mot. 582-01)] and
tighten flywheel bolts with new one.
33. Turn all bolts 36 degrees clockwise (angle tightening).
CAUTION:
Check and confirm the tightening angle by using the angle
wrench [SST: KV10112100 ( — )] or protractor. Avoid judg-
ment by visual inspection without the tool.
34. Install the clutch housing.
35. Remove ring gear stopper [SST: KV113B0060 (Mot. 582-01)].
Inspection
INFOID:0000000010282106
CYLINDER BLOCK TOP SURFACE DISTORTION
• Using a scraper, remove gasket on the cylinder block surface, and also remove engine oil, scale, carbon, or
other contamination.
CAUTION:
Be careful not to allow gasket flakes to enter engine oil or engine coolant passages.
• Measure the distortion on the cylinder block upper face at some
different points in six directions with a straight edge (A) and feeler
gauge (B).
• If it exceeds the limit, replace cylinder block.
PISTON PROTRUSION
1.
Clean the piston head.
2.
Turn the crankshaft one turn in its operating direction to bring piston No. 1 close to TDC.
3.
Install dial gauge stand set [KV113B0050 (Mot. 252-01) (com-
mercial service tool) or equivalent tool] on the piston.
4.
Install dial gauge stand set [KV113B0040 (Mot. 251-01) (com-
mercial service tool) or equivalent tool] equipped with a gauge
on dial gauge stand set [KV113B0050 (Mot. 252-01) (commer-
cial service tool) or equivalent tool], and find TDC.
NOTE:
All measurements must be carried out along the longitudinal
axis of the engine, in order to eliminate any errors due to tilting
of the piston.
WARNING:
The gauge follower must not be in the valve clearance.
5.
Inspect the piston protrusion.
CRANKSHAFT LATERAL PLAY
1.
Install crankshaft.
: 20.0 N·m (2.0 kg-m, 15 ft-lb)
MBIB0500E
Limit :
Refer
PBIC3250J
Standard
: Refer to
MBIB0480E
CYLINDER BLOCK
EM-349
< UNIT DISASSEMBLY AND ASSEMBLY >
[K9K]
C
D
E
F
G
H
I
J
K
L
M
A
EM
N
P
O
2.
Inspect the lateral play.
CONNECTING ROD BIG END LONGITUDINAL PLAY
1.
Install crankshaft.
2.
Install piston and connecting rod assembly.
3.
Inspect that the big end lateral play.
PISTON DIAMETER
Measure the piston diameter.
The piston diameter (A) must be measured at height (a) = 56 mm
(2.205 in).
PISTON RING THICKNESS
Measure piston ring thickness with micrometer.
• The piston rings are supplied ready adjusted.
PISTON RING SIDE CLEARANCE
• Measure the side clearance of piston ring and piston ring groove
with a feeler gauge (A).
• If the measured value exceeds the limit, replace piston ring, and
measure again. If it still exceeds the limit, replace piston also.
Standard
: Refer to
MBIB0477E
Standard
: Refer to
MBIB0479E
Standard
: Refer to
SEM882E
Standard
: Refer to
Standard
: Refer to
PBIC3280J
EM-350
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[K9K]
CYLINDER BLOCK
PISTON RING END GAP
• Lubricate with new engine oil to piston (1) and piston ring (2), and
then insert (A) piston ring until middle of cylinder (B) with piston,
and measure piston ring end gap with a feeler gauge (C).
• If the measured value exceeds the limit, replace piston ring.
CHECKING THE DIAMETER, OUT-OF-ROUNDNESS AND TAPER OF BARRELS
Using a Dial gauge, measurethe diameter (D1) of the cylinder block barrelsat in intervals of 45
°
(4 diagonals)
at 3 levels (N1), (N2) and (N3):
• 10 mm,
• 64 mm,
• 117 mm,
depth from the cylinder head joint face and note these 12 diameter values for each cylinder.
Check that these 48 diameter measurements are all within the barrel diameter tolerance.
Check that the difference between the largest and the smallest diameters at each depth level in each cylinder
is within the out-of-roundnes tolerance.
Standard
: Refer to
PBIC3267J
E1BIA0615ZZ
Diameter tolerance :
76.00 - 76.02 mm (2.992 -
2.993 in)
Maximum out-of-round-
ness permitted
0.01 mm (0.0004 in)
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