Qashqai J11. Engine mechanical (HRA2DDT, K9K, MR20DD)

CYLINDER BLOCK

EM-337

< UNIT DISASSEMBLY AND ASSEMBLY >

[K9K]

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

[47.990 - 47.997 (1.8894 - 1.8896)]

B, H, L, S, Y

[47.997 - 48.003 (1.8896 - 1.8899)]

C, J, O, T, Z

[48.003 - 48.010 (1.8899 - 1.8902)]

EM-338

< UNIT DISASSEMBLY AND ASSEMBLY >

[K9K]

CYLINDER BLOCK

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.

Select main bearing category by referring to the table.

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

C1 (Yellow)

[1.949 - 1.955 (0.0767 - 0.0770)]

C2 (Blue)

[1.946 - 1.952 (0.0766 - 0.0769)]

C3 (Black)

[1.943 - 1.949 (0.0765 - 0.0767)]

2 or Red

C4 (Red)

[1.953 - 1.959 (0.0769 - 0.0771)]

C1 (Yellow)

[1.949 - 1.955 (0.0767 - 0.0770)]

C2 (Blue)

[1.946 - 1.952 (0.0766 - 0.0769)]

CYLINDER BLOCK

EM-339

< UNIT DISASSEMBLY AND ASSEMBLY >

[K9K]

Position the grooved main bearing on the cylinder block.

Install the smooth bearing cap on the bearings.

Position bearing insert [SST: KV113B0160 (Mot. 1493-01)] on
the cylinder block.

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.

Position bearing insert [SST: KV113B0160 (Mot. 1493-01)] on
the bearing cap.

MBIB0348E

MBIB0349E

MBIB0472E

MBIB0473E

MBIB0474E

EM-340

< UNIT DISASSEMBLY AND ASSEMBLY >

[K9K]

CYLINDER BLOCK

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.

Lubricate the main bearing with engine oil.

Install the crankshaft.

Install the lateral shims on bearing No. 3, putting the grooves on
the crankshaft side.

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).

Lay two beads of liquid sealant with a width of 4 mm (0.16 in) on
bearing No. 1 of the cylinder block.

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.

Check the lateral play. Refer to

EM-348, "Inspection"

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 >

[K9K]

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)].

Install the guide (D) of bearing assembling adapter [SST:
KV113B0150 (Mot. 1492-03)] onto the base (as shown in the fig-
ure).

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.

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

< UNIT DISASSEMBLY AND ASSEMBLY >

[K9K]

CYLINDER BLOCK

Bring the connecting rod support up against the base of the con-
necting rod body.

Remove the connecting rod body support and repeat the opera-
tion for the remaining connecting rod bodies.

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).

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).

Install the connecting rod cap as shown in the figure.

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.

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

EM-343

< UNIT DISASSEMBLY AND ASSEMBLY >

[K9K]

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.

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.

Position the opening (C) of the snap rings opposite the removal
and fitting channel (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.

Ensure the break in each piston ring is correctly oriented as
shown in the figure.

Apply new engine oil to the pistons.

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).

Install the connecting rods onto the oiled crankshaft pins of the
crankshaft.

Install the connecting rod caps, ensuring they are correctly
matched.

Tighten the connecting rod cap bolts.

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

Inspect that the big end lateral play. Refer to

EM-348, "Inspection"

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

EM-345

< UNIT DISASSEMBLY AND ASSEMBLY >

[K9K]

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

24. Tighten the nut until the cover touches the spacer.

MBIB0487E

MBIB0488E

MBIB0489E

MBIB0490E

MBIB0491E

EM-346

< UNIT DISASSEMBLY AND ASSEMBLY >

[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

EM-347

< UNIT DISASSEMBLY AND ASSEMBLY >

[K9K]

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

< UNIT DISASSEMBLY AND ASSEMBLY >

[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

Clean the piston head.

Turn the crankshaft one turn in its operating direction to bring piston No. 1 close to TDC.

Install dial gauge stand set [KV113B0050 (Mot. 252-01) (com-
mercial service tool) or equivalent tool] on the piston.

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.

Inspect the piston protrusion.

CRANKSHAFT LATERAL PLAY

Install crankshaft.

: 20.0 N·m (2.0 kg-m, 15 ft-lb)

MBIB0500E

Limit :

Refer

EM-356, "Cylinder Block"

PBIC3250J

Standard

: Refer to

EM-356, "Cylinder Block"

MBIB0480E

CYLINDER BLOCK

EM-349

< UNIT DISASSEMBLY AND ASSEMBLY >

[K9K]

Inspect the lateral play.

CONNECTING ROD BIG END LONGITUDINAL PLAY

Install crankshaft.

Install piston and connecting rod assembly.

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

EM-356, "Cylinder Block"

MBIB0477E

Standard

: Refer to

EM-356, "Cylinder Block"

MBIB0479E

Standard

: Refer to

EM-356, "Cylinder Block"

SEM882E

Standard

: Refer to

EM-356, "Cylinder Block"

Standard

: Refer to

EM-356, "Cylinder Block"

PBIC3280J

EM-350

< UNIT DISASSEMBLY AND ASSEMBLY >

[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

EM-356, "Cylinder Block"

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

EM-351

< UNIT DISASSEMBLY AND ASSEMBLY >

[K9K]

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

EM-356, "Cylinder Block"

FEM114

Standard

: Refer to

EM-356, "Cylinder Block"

PBIC0127E

EM-352

< SERVICE DATA AND SPECIFICATIONS (SDS)

[K9K]

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

(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

Oil

Number of main bearings

Compression ratio

15.2

Compression pressure

kPa (bar, kg/cm

, psi)

Maximum pressure must be at least 1,800

(18, 18.36, 261)

Valve timing

200

191

-9

-7

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)

Qashqai J11. Engine mechanical (HRA2DDT, K9K, MR20DD) - part 22