Infiniti G35 (V35) Sedan. Manual - part 626

CYLINDER HEAD

EM-103

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CYLINDER HEAD

Exploded View

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1.

Engine rear lower slinger 

2.

Cylinder head (left bank)

3.

Cylinder head bolt

4.

Cylinder head (right bank)

5.

Cylinder head gasket (right bank)

6.

Cylinder head gasket (left bank)

A.

Refer to 

EM-107

 

Refer to 

GI-4, "Components"

 symbols not described on the above.

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EM-104

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CYLINDER HEAD

Removal and Installation

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REMOVAL

1.

Remove the following parts:
• Intake manifold collector: Refer to 

EM-27, "Exploded View"

.

• Rocker cover: Refer to 

EM-45, "Exploded View"

.

• Fuel tube and fuel injector assembly: Refer to 

EM-35, "Exploded View"

.

• Intake manifold: Refer to 

EM-30, "Exploded View"

.

• Exhaust manifold: Refer to 

EM-32, "Exploded View"

.

• Water inlet and thermostat assembly: Refer to 

CO-22, "Exploded View"

.

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

CO-24, "Exploded View"

.

• Timing chain: Refer to 

EM-48, "Exploded View"

.

• Rear timing chain case: Refer to 

EM-91, "Exploded View"

.

• Camshaft: Refer to 

EM-65, "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

8.

Spark plug

9.

Spark plug tube

10. Cylinder head (right bank)

11.

Valve seat

12. Valve (EXH)

13.  Valve (INT)

14. Cylinder head (left bank)

: Apply thread locking sealant.

Refer to 

GI-4, "Components"

 for symbol marks in the figure.

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CYLINDER HEAD

EM-105

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2.

Remove cylinder head bolts in reverse order as shown in the fig-
ure with cylinder head bolt wrench (commercial service tool) and
power tool to remove cylinder heads (right bank and left bank).

3.

Remove cylinder head gaskets.

INSTALLATION

1.

Install new cylinder head gaskets.

2.

Turn crankshaft until No. 1 piston is set at TDC.

• Crankshaft key should line up with the right bank cylinder cen-

ter line as shown in the figure.

A

: Right bank

B

: Left bank

: Engine front

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: Crankshaft key

: Right bank side

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EM-106

< DISASSEMBLY AND ASSEMBLY >

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 re-used, check their outer diameters

before installation. Refer to 

EM-103, "Exploded View"

.

• Before installing cylinder head, inspect cylinder head dis-

tortion. Refer to 

EM-103, "Exploded View"

.

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 reverse order of that indicated in the figure.

d.

Tighten all cylinder head bolts.

e.

Turn all cylinder head bolts 95 degrees clockwise (angle tighten-
ing).

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 95 degrees clockwise again (angle
tightening).

4.

After installing cylinder head, measure distance between front
end faces of cylinder block and cylinder head (left and right
banks).

• If measured value is out of the standard, re-install cylinder

head.

5.

Install in the reverse order of removal after this step.

INSPECTION AFTER INSTALLATION

Inspection for Leaks

The following are procedures for checking fluids leak, lubricates leak and exhaust gases leak.

A

: Right bank

B

: Left bank

: Engine front

: 105 N·m (11 kg-m, 77 ft-lb)

: 0 N·m (0 kg-m, 0 ft-lb)

: 40.0 N·m (4.1 kg-m, 30 ft-lb)

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Standard

: 14.1 - 14.9 mm (0.555 - 0.587 in) 

EMQ0662D