Qashqai J11. Engine mechanical (HRA2DDT, K9K, MR20DD) — part 22
CYLINDER BLOCK
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The marking has 5 digits. Left end is the diameter category of
No. 1 bearing (flywheel side) and right end is the diameter cate-
gory of No. 5 bearing (Sprocket side).
Detail of the marking (A):
(1) Line indicating the diameter category of the journal.
(2) Diameter category of the journal No. 1, flywheel end.
(3) Diameter category of the journal No. 5, timing end.
(4) Line indicating the diameter category of crankpin.
(5) Diameter category of crankpin No. 1, flywheel end.
(6) Diameter category crankpin No. 5, timing end
Table Of Journal Diameter Classes
MBIB0344E
E1BIA0409ZZ
E1BIA0408ZZ
Journal diameter category mark
Journal diameter category
[Diameter mm (in)]
A, G, K, R, W
D1
[47.990 - 47.997 (1.8894 - 1.8896)]
B, H, L, S, Y
D2
[47.997 - 48.003 (1.8896 - 1.8899)]
C, J, O, T, Z
D3
[48.003 - 48.010 (1.8899 - 1.8902)]
EM-338
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[K9K]
CYLINDER BLOCK
b.
Identify the category of main bearing journal inner diameter on
the cylinder block (A) with measuring the length between cylin-
der block top surface and drilled hole (B).
NOTE:
X gives the diameter class of bearing 1 or blue, or, 2 or red.
c.
Select main bearing category by referring to the table.
8.
Install main bearing with the following procedure.
MBIB0345E
E1BIA0717ZZ
Position of (B)
Category marking
[Inner diameter (A) mm (in)]
X = 33 mm (1.30 in)
1 or Blue
[51.936 - 51.942 (2.0447 - 2.0450)]
X = 43 mm (1.69 in)
2 or Red
[51.942 - 51.949 (2.0450 - 2.0452)]
Category of main bearing journal inner di-
ameter on the cylinder block
Category of crankshaft main journal diame-
ter
Main bearing category
[Thickness mm (in)]
1 or Blue
D1
C1 (Yellow)
[1.949 - 1.955 (0.0767 - 0.0770)]
D2
C2 (Blue)
[1.946 - 1.952 (0.0766 - 0.0769)]
D3
C3 (Black)
[1.943 - 1.949 (0.0765 - 0.0767)]
2 or Red
D1
C4 (Red)
[1.953 - 1.959 (0.0769 - 0.0771)]
D2
C1 (Yellow)
[1.949 - 1.955 (0.0767 - 0.0770)]
D3
C2 (Blue)
[1.946 - 1.952 (0.0766 - 0.0769)]
CYLINDER BLOCK
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a.
Position the grooved main bearing on the cylinder block.
b.
Install the smooth bearing cap on the bearings.
c.
Position bearing insert [SST: KV113B0160 (Mot. 1493-01)] on
the cylinder block.
d.
Install the bearing cap in bearing insert [SST: KV113B0160 (Mot.
1493-01)], then press at (A) until the bearing cap is touching at
(B) with bearing insert.
e.
Position bearing insert [SST: KV113B0160 (Mot. 1493-01)] on
the bearing cap.
MBIB0348E
MBIB0349E
MBIB0472E
MBIB0473E
MBIB0474E
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CYLINDER BLOCK
f.
Install the main bearing in bearing insert [SST: KV113B0160
(Mot. 1493-01)], then press at (A) until the main bearing is
touching at (B) with bearing insert.
g.
Lubricate the main bearing with engine oil.
h.
Install the crankshaft.
i.
Install the lateral shims on bearing No. 3, putting the grooves on
the crankshaft side.
j.
Degrease the gasket faces (of the cylinder block and bearing
No. 1). They should be clean, dry and free from grease (in par-
ticular, remove finger marks).
k.
Lay two beads of liquid sealant with a width of 4 mm (0.16 in) on
bearing No. 1 of the cylinder block.
l.
Install the main bearing caps on bearing cap No. 1 (these are
numbered from 1 - 5 and these numbers should be positioned
opposite the water pump). Then tighten the bolts to a torque of:
m. Turn all bolts 47 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.
n.
Check the lateral play. Refer to
.
9.
Install connecting rod bearing with the following procedure.
The connecting rod bearing are installed using bearing assem-
bling set [SST: KV113B0140 (Mot. 1492)] and bearing assem-
bling adapter [SST: KV113B0150 (Mot. 1492-03)].
MBIB0475E
MBIB0478E
: 25.0 N·m (2.6 kg-m, 18 ft-lb)
MBIB0476E
MBIB0461E
CYLINDER BLOCK
EM-341
< UNIT DISASSEMBLY AND ASSEMBLY >
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a.
Slide the connecting rod bearing support (A) of bearing assem-
bling adapter [SST: KV113B0150 (Mot. 1492-03)] (positioning
the engraved mark (B) as shown in the figure)] into the groove
(C) of the base of bearing assembling set [SST: KV113B0140
(Mot. 1492)].
b.
Install the guide (D) of bearing assembling adapter [SST:
KV113B0150 (Mot. 1492-03)] onto the base (as shown in the fig-
ure).
c.
Lay the body of the connecting rod on the base of the tool (as
shown in the diagram). Check that the lower part (E) of the small
end is touching the centering pin and push the guide (G) in the
direction of the arrow.
d.
Lay the connecting rod bearing [with a width of 20.625 mm
(0.8120 in)] (F) on the connecting rod bearing support, then
push it in the direction of the arrow (as shown in the figure).
MBIB0352E
MBIB0462E
MBIB0463E
MBIB0464E
MBIB0465E
EM-342
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CYLINDER BLOCK
e.
Bring the connecting rod support up against the base of the con-
necting rod body.
f.
Remove the connecting rod body support and repeat the opera-
tion for the remaining connecting rod bodies.
g.
Position the connecting rod bearing support either on the
engraved mark (C) if the width of the connecting rod bearing is
equal to 20.625 mm (0.8120 in).
h.
Position the connecting rod bearing support either on the
engraved mark (D) if the width of the connecting rod bearing is
equal to 17.625 mm (0.6939 in).
i.
Install the connecting rod cap as shown in the figure.
j.
Push the guide (in the direction of the arrow) until the connecting
rod cap is in contact with the pins (I) on the base of the tool.
k.
Install the connecting rod bearing (H) on the bearing support,
then push it in the direction of the arrow (as shown in the figure).
MBIB0466E
MBIB0467E
MBIB0468E
MBIB0469E
MBIB0470E
CYLINDER BLOCK
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l.
Bring the connecting rod bearing support up against the base of
the connecting rod cap.
m. Remove the connecting rod bearing support and repeat the
operation for the remaining connecting rod caps.
10. Assemble connecting rod and piston with the following procedure.
a.
The pistons have a mark engraved on their heads indicating the engine rear side.
• Oil the piston pin.
• Check that the piston pins rotate correctly in the new piston and in the matching connecting rod.
b.
Point the mark (A) engraved on the top of the piston upwards
and the flat (B) of the big end downwards as shown in the figure.
c.
Position the opening (C) of the snap rings opposite the removal
and fitting channel (D).
d.
Install snap ring.
• Rings set to their original adjustment must be free within their
channels.
• Ensure the snap rings are fitted the correct way, with the word
TOP pointing upwards.
e.
Ensure the break in each piston ring is correctly oriented as
shown in the figure.
f.
Apply new engine oil to the pistons.
g.
Install the connecting rod/piston assemblies into the cylinder
block using the ring, being careful to fit them the right way round
(mark towards the flywheel).
h.
Install the connecting rods onto the oiled crankshaft pins of the
crankshaft.
i.
Install the connecting rod caps, ensuring they are correctly
matched.
j.
Tighten the connecting rod cap bolts.
k.
Turn all bolts 45 degrees clockwise (angle tightening).
CAUTION:
Check and confirm the tightening angle by using the angle wrench [SST: KV10112100 ( — )] or pro-
tractor. Avoid judgment by visual inspection without the tool.
MBIB0471E
MBIB0342E
MBIB0343E
: 20.0 N·m (2.0 kg-m, 15 ft-lb)
MBIB0339E
EM-344
< UNIT DISASSEMBLY AND ASSEMBLY >
[K9K]
CYLINDER BLOCK
l.
Inspect that the big end lateral play. Refer to
11. Install the oil pump sprocket and chain.
12. Tighten oil pump mounting bolts.
13. Install water pump, Refer to
CO-75, "Removal and Installation"
NOTE:
The gasket faces (cylinder block, crankshaft cover and water
pump) must be clean, dry and free from grease (in particular,
remove finger marks).
14. Install crankshaft cover oil seal with a new one.
15. Install the crankshaft cover in the numerical order as shown in
the figure.
16. Apply two beads (B) of liquid gasket, with a diameter of 5 mm
(0.20 in).
Apply two points (C) of liquid gasket, with a diameter of 5 mm
(0.20 in) at the intersection of the crankshaft cover and the cylin-
der block.
• Use Genuine Liquid Gasket or equivalent.
17. Apply two beads (B) of liquid gasket, with a diameter of 5 mm
(0.20 in).
• Use Genuine Liquid Gasket or equivalent.
18. Install the oil pan Refer to
EM-296, "Removal and Installation"
.
: 25.0 N·m (2.6 kg-m, 18 ft-lb)
: 11.0 N·m (1.1 kg-m, 8 ft-lb)
MBIB0442E
E1BIA0051ZZ
MBIB0483E
MBIB0484E
CYLINDER BLOCK
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19. Crankshaft elastomer seal, timing side.
20. Screw the threaded rod (A) of front oil seal drift set [SST:
KV113B0220 (Mot. 1586)] into the crankshaft.
21. Position the spacer (B) of front oil seal drift set [SST:
KV113B0220 (Mot. 1586)] on the crankshaft.
22. Install the protector complete with the seal onto the spacer, tak-
ing care not to touch the seal.
23. Install the cover (A) and the nut (B) (putting the threaded part
(C) of the nut on the side away from the engine) of front oil seal
drift set [SST: KV113B0220 (Mot. 1586)].
24. Tighten the nut until the cover touches the spacer.
MBIB0487E
MBIB0488E
MBIB0489E
MBIB0490E
MBIB0491E
EM-346
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[K9K]
CYLINDER BLOCK
25. Remove the nut, the cover, the protector and the threaded rod.
26. Crankshaft elastomer seal, flywheel side.
27. Install front oil seal drift set [SST: KV113B0210 (Mot. 1585)] on
the crankshaft, securing it with bolts (F).
28. Put the protector complete with the seal on front oil seal drift set
[SST: KV113B0210 (Mot. 1585)], being careful not to touch the
seal.
MBIB0492E
MBIB0493E
MBIB0494E
MBIB0495E
CYLINDER BLOCK
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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
EM-348
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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
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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)
CYLINDER BLOCK
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Check that the difference between the largest and the smallest diameters in the same vertical plane of each
diameter of each cylinder barrel is within the taper tolerance.
CRANKSHAFT MAIN JOURNAL DIAMETER
Use micrometer to measure crankshaft main journal diameter.
CRANKSHAFT PIN JOURNAL DIAMETER
Use micrometer to measure crankshaft pin journal diameter.
FLYWHEEL ISNPECTION
For a dual mass flywheel which has worked: presence of a free rotation angle. This angle is measured by fix-
ing the primary flywheel and turning the secondary flywheel. The dual mass flywheel free rotation angle must
not exceed 15
°
or 3 cm in linear movement measured on the edge.
Maximum tapper permitted
0.01 mm (0.0004 in)
Standard
: Refer to
FEM114
Standard
: Refer to
PBIC0127E
EM-352
< SERVICE DATA AND SPECIFICATIONS (SDS)
[K9K]
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
General Specification
INFOID:0000000010282107
GENERAL SPECIFICATIONS
Drive Belt
INFOID:0000000010282108
DRIVE BELT
Camshaft
INFOID:0000000010282109
CAMSHAFT
Unit: mm (in)
Cylinder arrangement
In-line 4
Displacement
cm
3
(cu in)
1.461 (89.15)
Bore and stroke
mm (in)
76 x 80.5 (2.99 x 3.17)
Valve arrangement
SOHC
Firing order
1-3-4-2
Number of piston rings
Compression
2
Oil
1
Number of main bearings
5
Compression ratio
15.2
Compression pressure
kPa (bar, kg/cm
2
, psi)
Maximum pressure must be at least 1,800
(18, 18.36, 261)
Valve timing
a
b
c
d
e
f
200
°
191
°
-9
°
20
°
-7
°
27
°
PBIC0187E
Tension of drive belt
Auto adjustment by auto-tensioner
Items
Standard
Camshaft bracket inner diameter
No. 1, 2, 3, 4, 5
25.04 - 25.06 (0.9858 - 0.9866)
No. 6
28.04 - 28.06 (1.1039 - 1.1047)
Camshaft journal diameter
No. 1, 2, 3, 4, 5
24.979 - 25.000 (0.9834 - 0.9843)
No. 6
27.979 - 28.000 (1.1015 - 1.1024)
Camshaft end play
0.080 - 0.178 (0.0031 - 0.0070)
Camshaft runout
Less than 0.05 (0.0020)
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