Infiniti G35 (V35). Manual - part 488

CAMSHAFT

EM-107

●

Follow your identification marks made during removal, or fol-
low the identification marks that are present on new cam-
shafts for proper placement and direction.

●

Install camshaft so that dowel pin hole (small dia. side) front
end face are positioned as shown in the figure. (No. 1 cylinder
TDC on its compression stroke)

NOTE:

●

Large and small dowel pin holes are located on the front
end of camshaft at 180 degree intervals. Only the small
dowel pin hole position is described in this text because the
large dowel pin hole is not used for assembly of engine.

●

Though camshaft does not stop at the portion as shown in
the figure, for the placement of cam nose, it is generally accepted camshaft is placed for the same
direction of the figure.

Install camshaft brackets.

●

Remove foreign material completely from camshaft bracket
backside and from cylinder head installation face.

●

Install camshaft bracket in original position and direction as
shown in the figure.

Bank

INT/EXH

Paint marks

Identification

mark

INT

Brown

EXH

Brown

INT

Brown

EXH

Brown

PBIC3499E

Intake

: On cylinder head upper surface

Exhaust

: On cylinder head lower surface

PBIC3500E

PBIC2051E

EM-108

CAMSHAFT

●

Install camshaft brackets (No. 2 to 4) aligning the stamp
marks as shown in the figure.

NOTE:
There are no identification marks indicating left and right for
camshaft bracket (No. 1).

●

Apply liquid gasket to mating surface of camshaft bracket (No.
1) as shown on right and left banks.
Use Genuine RTV Silicone Sealant or equivalent. Refer to

Tighten camshaft bracket bolts in the following steps, in numeri-
cal order as shown in the figure.

Tighten No. 7 to 10 in numerical order as shown.

Tighten No. 1 to 6 in numerical order as shown.

Tighten No. 1 to 10 in numerical order as shown.

Tighten No. 1 to 6 in numerical order as shown.

Tighten No. 7 to 10 in numerical order as shown.

CAUTION:

After tightening mounting bolts of camshaft brackets (No.
1), be sure to wipe off excessive liquid gasket from the
parts list below.

●

Mating surface of rocker cover

PBIC2052E

PBIC2660E

: 1.96 N·m (0.2 kg-m, 17 in-lb)

: 5.88 N·m (0.6 kg-m, 52 in-lb)

: 9.02 - 11.8 N·m (0.92 - 1.20 kg-m, 80 - 104 in-lb)

: 8.3 - 10.3 N·m (0.85 - 1.0 kg-m, 74 - 91 in-lb)

PBIC2050E

CAMSHAFT

EM-109

●

Mating surface of rear timing chain case

Measure difference in levels between front end faces of cam-
shaft bracket (No. 1) and cylinder head.

●

Measure two positions (both intake and exhaust side) for a
single bank.

●

If the measured value is out of the standard, re-install cam-
shaft bracket (No. 1).

Check and adjust valve clearance. Refer to

EM-111, "Valve Clearance"

Install camshaft position sensor (PHASE) (right and left banks) and exhaust valve timing control position
sensor (right and left banks) (M/T models) to the cylinder head back side.

●

Install them in the position shown in the figure.

10. Install in the reverse order of removal after this step.

Standard

: –0.14 to 0.14 mm (–0.0055 to 0.0055 in)

EMQ0044D

PBIC3593E

EM-110

CAMSHAFT

INSPECTION AFTER INSTALLATION
Inspection of Camshaft Sprocket (INT) Oil Groove

CAUTION:

●

Perform this inspection only when DTC P0011 or P0021 are detected in self-diagnostic results of
CONSULT-II and it is directed according to inspection procedure of EC section. Refer to

EC-124,

"SELF-DIAG RESULTS MODE"

●

Check when engine is cold so as to prevent burns from any splashing engine oil.

Check the engine oil level. Refer to

LU-7, "ENGINE OIL"

Perform the following procedure so as to prevent the engine from being unintentionally started while
checking.

Release fuel pressure. Refer to

EC-81, "FUEL PRESSURE RELEASE"

Disconnect ignition coil and injector harness connectors.

Remove intake valve timing control solenoid valve. Refer to

EM-100, "CAMSHAFT"

Crank the engine, and then make sure that engine oil comes out
from camshaft bracket (No. 1) oil hole. End crank after checking.

WARNING:

Be careful not to touch rotating parts (drive belts, idler pul-
ley, and crankshaft pulley, etc.).

CAUTION:

Engine oil may squirt from intake valve timing control sole-
noid valve installation hole during cranking. Use a shop
cloth to prevent the engine components and the vehicle. Do
not allow engine oil to get on rubber components such as
drive belt or engine mounting insulators. Immediately wipe
off any splashed engine oil.

●

Clean oil groove between oil strainer and intake valve timing control solenoid valve if engine oil does not
come out from camshaft bracket (No. 1) oil hole. Refer to

LU-4, "LUBRICATION SYSTEM"

Remove components between intake valve timing control solenoid valve and camshaft sprocket (INT),
and then check each oil groove for clogging.

●

Clean oil groove if necessary. Refer to

LU-4, "LUBRICATION SYSTEM"

After inspection, install removed parts.

Inspection for Leaks

The following are procedures for checking fluids leak, lubricates leak.

●

Before starting engine, check oil/fluid levels including engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to

●

Use procedure below to check for fuel leakage.

–

Turn ignition switch “ON” (with engine stopped). With fuel pressure applied to fuel piping, check for fuel
leakage at connection points.

–

Start engine. With engine speed increased, check again for fuel leakage at connection points.

●

Run engine to check for unusual noise and vibration.

NOTE:
If hydraulic pressure inside timing chain tensioner drops after removal/installation, slack in the guide may
generate a pounding noise during and just after engine start. However, this is normal. Noise will stop after
hydraulic pressure rises.

●

Warm up engine thoroughly to make sure there is no leakage of fuel, or any oil/fluids including engine oil
and engine coolant.

●

Bleed air from lines and hoses of applicable lines, such as in cooling system.

●

After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to the
specified level, if necessary.

PBIC2869E

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