Nissan Quest E52. Manual - part 586

CYLINDER HEAD

EM-93

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CYLINDER HEAD

Exploded View

INFOID:0000000009652794

REMOVAL

DISASSEMBLY

1.

Oil level gauge

2.

Cylinder head (bank 2)

3.

Cylinder head bolt

4.

Cylinder head (bank 1)

5.

Cylinder head gasket (bank 1)

6.

Cylinder head gasket (bank 2)

A.

Comply with the assembly procedure 
when tightening. Refer to 

EM-94

 : Always replace after every disassembly.

 : N·m (kg-m, ft-lb)

 : Should be lubricated with oil.

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CYLINDER HEAD

Removal and Installation

INFOID:0000000009652795

REMOVAL

1.

Remove the following parts:
• Oil level gauge
• Intake manifold collector: Refer to 

EM-28, "Exploded View"

.

• Rocker cover: Refer to 

EM-52, "Exploded View"

.

• Fuel tube and fuel injector assembly: Refer to 

EM-47, "Exploded View"

.

• Intake manifold: Refer to 

EM-31, "Exploded View"

.

• Exhaust manifold: Refer to 

EM-33, "Exploded View"

.

• Water inlet and thermostat assembly: Refer to 

CO-24, "Removal and Installation"

.

• Water outlet, water connector, water bypass pipe, and heater pipe: Refer to 

CO-27, "Removal and

Installation"

.

• Fornt timing chain case, timing chain and rear timing chain case: Refer to 

EM-67, "Removal and Instal-

lation"

.

• Camshaft: Refer to 

EM-84, "Exploded View"

.

1.

Valve lifter

2.

Valve collet

3.

Valve spring retainer

4.

Valve spring

5.

Valve oil seal

6.

Valve spring seat

7.

Valve guide (EXH)

8.

Spark plug

9.

Spark plug tube

10. Cylinder head (bank 1)

11.

Valve seat (EXH)

12. Valve (EXH)

13.  Valve (INT)

14. Valve seat (INT)

15. Valve guide (INT)

16. Cylinder head (bank 2)

: Apply genuine high strength thread locking sealant or equivalent.

 : Always replace after every disassembly.

 : N·m (kg-m, ft-lb)

 : Should be lubricated with oil.

 : Select with proper thickness.

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CYLINDER HEAD

EM-95

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2.

Remove cylinder head bolts in the reverse order as shown in the
figure with cylinder head bolt wrench (commercial service tool)
and power tool to remove cylinder heads (bank 1 and bank 2).

3.

Remove cylinder head gaskets.

INSTALLATION

1.

Turn crankshaft until No. 1 piston is set at TDC.
• Crankshaft key (1) should line up with the bank 1 cylinder cen-

ter line as shown in the figure.

2.

Install new cylinder head gaskets.

A

:  Bank  1

B

:  Bank  2

: Engine front

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: Bank 1 side

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EM-96

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CYLINDER HEAD

3.

Install cylinder head follow the steps below to tighten cylinder
head bolts in numerical order as shown in the figure with cylin-
der head bolts wrench (commercial service tool).

CAUTION:

• If cylinder head bolts reused, check their outer diameters

before installation. Refer to 

EM-101, "Inspection"

.

• Before installing cylinder head, inspect cylinder head dis-

tortion. Refer to 

EM-101, "Inspection"

.

a.

Apply new engine oil to threads and seat surfaces of cylinder
head bolts.

b.

Tighten all cylinder head bolts.

c.

Completely loosen all cylinder head bolts.

CAUTION:

In step “c”, loosen bolts in the reverse order of that indicated in the figure.

d.

Tighten all cylinder head bolts.

e.

Turn all cylinder head bolts 103 degrees clockwise (angle tightening).

CAUTION:

Check the tightening angle by using the angle wrench [SST:
KV10112100 (BT8653-A)] (A). Avoid judgment by visual
inspection without.
• Check tightening angle indicated on the angle wrench indica-

tor plate.

f.

Turn all cylinder head bolts 103 degrees clockwise again (angle
tightening).

4.

After installing cylinder head, measure distance between front
end faces of cylinder block and cylinder head (bank 1 and bank
2).

• If measured value is out of the standard, reinstall cylinder

head.

5.

Install in the reverse order of removal after this step.

A

:  Bank  1

B

:  Bank  2

: Engine front

: 98.1 N·m (10 kg-m, 72 ft-lb)

: 0 N·m (0 kg-m, 0 ft-lb)

: 39.2 N·m (4.0 kg-m, 29 ft-lb)

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Standard

: 14.1 - 14.9 mm (0.555 - 0.587 in) 

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