Nissan Qashqai J11. Manual - part 128

CYLINDER BLOCK

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a.

Remove dust, dirt, and engine oil from the bearing mating surfaces of the cylinder block and main bearing
cap.

b.

Centre the grooved bearing shell on bearing No.1 of the cylinder block while aligning the groove of the
bearing  shell with the hole of the bearing.
• Secure the flush bearing shell and push from the opposite side

the position of the bearing shell flush with the bearing.

c.

d.

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CYLINDER BLOCK

e.

Measure the distance (X1) between the bearing face (1) and the edge of the bearing shell at points (A),
(B) and (C) using a depth gauge.

f.

If necessary, adjust the position of the bearing shell to the value (X1) =  [179 mm (7.0 in)].

g.

Repet the previous operations for the bearing shells of the bearings No 2, 4 and 5.

h.

If necessary, adjust the position of the bearing shells: 
- of bearings No. 2 and 4 to the value (X2) = [88 mm (3.5 in)].
- of the bearing No. 5 to the value (X1) = [176 mm (6.9 in)].

i.

Place: 

• a rectified shim (1) against the mating face of the crankshaft

thrust washer on bearing No.3

• the grooved bearing shell against the rectified shim.

• Secure the flush bearing shell against the rectified shimat (2) and push from the opposite side to posi-

tion the bearing shell flush with the bearing..

j.

• Mesure the distance (X3) between the bearing face of the

thrust washer and the bearing shell edge using a depth gauge.

k.

• Centre the grooved bearing shell on the bearing, aligning the

shell with the hole groove.

• Adjust the position of the bearing shell at points (A), (B) and

(C) using the rectified shim (1) and a set of feeler gauges
(thickness of the shim (2) = (X3) : [2 mm (0.1 in)].

l.

Place:

• the bearing cap on a bench,
• a non-grooved bearing shell against the bench.

• Secure the flush bearing shell with the bearing cap at (1) and

push from the opposite side to bring the bearing shell flush
with the bearing cap.

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CYLINDER BLOCK

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m.

• Measure the distance (X4) between the edge of the bearing

shell and the wall of the bearing cap at points (A), (B) and (C)
using a depth gauge.

n.

• Adjust the position of the bearing shell at point (A), (B) and

using a set of feeler gauges (feeler gauges (thichness of the
shim (1)  = X4 : [2 mm (0.1 in)]

• Repeat the previous operations for the other bearing caps.

o.

• Position the crankshaft thrust washers on the cylinder block

(washer plug (1) in the cylinder block notch)

• Use engine oil to lubricate the crankshaft journal bearing

shells and thrust washers (only the face making contact with
the crankshaft).

NOTE:
Ensure the bearing shells and the thrust washers do not move
when refitting the crankshaft and bearing caps.

4.

Install  crankshaft, the bearing caps and the crankshaft bearing bolts.
NOTE:
Check that the bearing caps are in contact with the cylinder block before tightening the bearing cap bolts.

5.

Install main bearing caps with the following procedure:

a.

Align the identification number to the journal position to install as
shown in the figure.

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: Engine front

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b.

Tighten new main bearing cap bolts in numerical order as shown
in the figure with the following procedure:

i.

Pretighten main bearing cap bolts.

Tighten main bearing cap bolts.

CAUTION:

Be sure to check that the main bearing cap is in contact with the cylinder block before tightening
the bolts.

ii.

Turn bolts 110 degrees clockwise (angle tightening).

CAUTION:

Confirm the tightening angle by using an angle wrench
[SST: KV10112100 ( — )] (A) or protractor. Never judge by
visual inspection without the tool. 

• After installing mounting bolts, check that crankshaft can be rotated smoothly by hand.
• Check crankshaft end play. Refer to 

EM-459, "Inspection"

.

• If replacing the crankshaft, always identify the piston height category to refit in each cylinder to garantee that

the piston protusion in relation to the cylinder block remains within the tolerance, before refitting the con rod
- piston assemblies. Refer to 

EM-459, "Inspection"

.

6.

Install piston to connecting rod with the following procedure: 

a.

Install snap ring to the groove of the piston rear side. 
• Insert it fully into the groove. 

b.

Assemble piston to connecting rod.
• Point the mark engraved (A) on the piston head facing and the

bosses (B) of the big end as shown in the figure.

• Piston pin can be pushed in by hand without excessive force.

From the front to the rear, insert piston pin into piston and con-
necting rod.

c.

Install snap ring to the groove of the piston front side. 
• Insert it fully into the groove. 
• After installing, check that connecting rod moves smoothly.

7.

Using a piston ring expander (commercial service tool), install piston rings. 

CAUTION:

• Be careful not to damage piston.
• Be careful not to damage piston rings by expanding them excessively.

: Engine front

: 25.0 N·m (2.6 kg-m, 18 ft-lb)

: 25.0 N·m (2.6 kg-m, 18 ft-lb)

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