rack INFINITI FX35 2004 Service Manual

EM-194
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ROCKER COVER
Revision: 2004 November 2004 FX35/FX45
4. Remove grommets from right and left cowl top panel.

Remove right side grommet as follows:
–Remove battery. Refer to SC-4, "BATTERY" .
–Remove battery tray.
–Remove grommet.
5. Loosen bolts in reverse order as shown in the figure.
CAUTION:
Do not hold oil filler neck (right bank) not to damage it.
NOTE:
Loosen No. 10 bolt of the right bank and No. 10 and No. 12 bolts
of the left bank from cowl top panel hole with using tool.
6. Use scraper to remove all traces of liquid gasket from cylinder head and camshaft bracket.
PBIC2339E
PBIC0027E

ROCKER COVER
EM-195
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Revision: 2004 November 2004 FX35/FX45
INSTALLATION
1. Apply liquid gasket to joint part of cylinder head and camshaft
bracket as follows:
NOTE:
The figure shows an example of left bank side [zoomed in
shows camshaft bracket (No. 1)]. Apply only to camshaft bracket
(No. 1) for right bank side.
a. Refer to the figure “a” to apply liquid gasket to joint part of cam-
shaft bracket (both No. 1 and No. 6) and cylinder head.
b. Refer to the figure “b” to apply liquid gasket in 90 degrees to the
figure “a”.
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-48, "
RECOMMENDED CHEMICAL PRODUCTS AND
SEALANTS" .
2. Install rocker cover.

Check if rocker cover gasket is not dropped from installation groove of rocker cover.
3. Tighten bolts in two steps separately in numerical order as
shown in the figure.
CAUTION:
Do not hold oil filler neck (right bank) not to damage it.
NOTE:
Tighten No. 10 bolt of the right bank and No. 10 and No. 12 bolts
of the left bank from cowl top panel hole with using tool.
4. Install in the reverse order of removal after this step.
PBIC2444E
1st step : 2.0 N·m (0.2 kg-m, 18 in-lb)
2nd step : 8.3 N·m (0.85 kg-m, 73 in-lb)
PBIC0027E

TIMING CHAIN
EM-201
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Revision: 2004 November 2004 FX35/FX45
INSPECTION AFTER REMOVAL
Timing Chain
Check tor cracks and any excessive wear at the roller links and link
plates. Replace timing chain as necessary.
INSTALLATION
NOTE:

The above figure shows the relationship between the mating mark on each timing chain and that on the
corresponding sprocket, with the components installed.

Parts with an identification mark (R or L) should be installed on the corresponding bank according to the
mark.
Parts with an identification mark:
–Camshaft sprocket (INT)
–Dowel pin groove of camshaft sprocket (EXH) (camshaft sprocket is same part both banks)
–Chain tension guide
–Chain slack guide

Because of parallel manufacture, there are two types of mark (link colors) for timing chain.

To install timing chain and related parts, start with those on right bank. The procedure for installing parts
on left bank is omitted because it is the same as that for installation on right bank.
PBIC0282E
PBIC2344E

EM-208
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CAMSHAFT
Revision: 2004 November 2004 FX35/FX45
CAMSHAFTPFP:13001
Removal and InstallationABS00FPG
REMOVAL
1. Remove engine assembly from vehicle. Refer to EM-236, "ENGINE ASSEMBLY" .
2. Remove timing chain. Refer to EM-196, "
TIMING CHAIN" .
3. With hexagonal part of camshaft locked with wrench, loosen
bolts securing camshaft sprocket to remove camshaft sprocket.
CAUTION:
After removing timing chain, do not turn crankshaft and
camshaft separately, or valves will strike the piston head.
1. Cylinder head (right bank) 2. Camshaft bracket (No. 2 to No. 5) 3. Adjusting shim
4. Valve lifter 5. Camshaft bracket (No. 1) 6. Seal washer
7. Camshaft (EXH) 8. Camshaft sprocket (EXH) 9. Camshaft sprocket (INT)
10. Camshaft (INT) 11. Cylinder head (left bank) 12. Adjusting shim
13. Valve lifter 14. Camshaft (INT) 15. Camshaft sprocket (INT)
16. Camshaft sprocket (EXH) 17. Camshaft (EXH) 18. Camshaft bracket (No. 1)
19. Seal washer 20. Camshaft bracket (No. 2 to No. 5) 21. Camshaft bracket (No. 6)
22. Harness bracket 23. Harness bracket
PBIC2354E
PBIC0030E

CAMSHAFT
EM-209
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Revision: 2004 November 2004 FX35/FX45
4. Remove intake and exhaust camshaft brackets.

Mark camshafts, camshaft brackets and bolts so placed in the same position and direction for installa-
tion.

Equally loosen camshaft brackets and bolts in several steps in
reverse order as shown in the figure.

Lightly tapping with plastic hammer, remove camshaft bracket
(No. 1) and camshaft bracket (No. 6).
NOTE:
The bottom surface of each bracket will be stuck to cylinder
head because of liquid gasket.
5. Remove camshaft.
6. Remove adjusting shim and valve lifter if necessary.

Identify installation positions, and store them without mixing them up.
INSPECTION AFTER REMOVAL
Camshaft Runout
1. Put V-block on precise flat table, and support No. 2 and No. 5
journal of camshaft.
CAUTION:
Do not support journal No. 1 (on the side of camshaft
sprocket) because it has a different diameter from the other
three locations.
2. Set dial indicator vertically to No. 3 journal.
3. Turn camshaft to one direction with hands, and measure cam-
shaft runout on dial indicator. (Total indicator reading)
4. If it exceeds the limit, replace camshaft.
Camshaft Cam Height
1. Measure camshaft cam height with micrometer.
2. If wear is beyond the limit, replace camshaft.
PBIC0031E
Limit : 0.02 mm (0.0008 in)PBIC2499E
Standard cam height
Intake : 44.865 - 45.055 mm (1.7663 - 1.7738 in)
Exhaust : 43.925 - 44.115 mm (1.7293 - 1.7368 in)
Cam wear limit
: 0.2 mm (0.008 in)
PBIC0039E

EM-210
[VK45DE]
CAMSHAFT
Revision: 2004 November 2004 FX35/FX45
Camshaft Journal Oil Clearance
CAMSHAFT JOURNAL DIAMETER

Measure outer diameter of camshaft journal with micrometer.
CAMSHAFT BRACKET INNER DIAMETER

Tighten camshaft bracket bolt with specified torque. Refer to EM-212, "INSTALLATION" for the tighten-
ing procedure.

Measure inner diameter “A” of camshaft bracket with bore
gauge.
CAMSHAFT JOURNAL OIL CLEARANCE

(Oil clearance) = (Camshaft bracket inner diameter) – (Camshaft journal diameter).

If out of the standard, replace either or both camshaft and cylinder head.
NOTE:
Camshaft brackets cannot be replaced as a single part, because it is machined together with cylinder
head. Replace whole cylinder head assembly.
Camshaft End Play

Install dial indicator in thrust direction on front end of camshaft.
Measure end play of dial indicator when camshaft is moved for-
ward/backward (in direction to axis).Standard:
No. 1 : 25.938 - 25.955 mm (1.0212 - 1.0218 in)
No. 2, 3, 4 : 25.953 - 25.970 mm (1.0218 - 1.0224 in)
PBIC0040E
Standard:
26.000 - 26.021 mm (1.0236 - 1.0244 in)
PBIC1645E
Standard:
No. 1 : 0.045 - 0.083 mm (0.0018 - 0.0033 in)
No. 2, 3, 4 : 0.030 - 0.068 mm (0.0012 - 0.0027 in)
Standard:
0.115 - 0.188 mm (0.0045 - 0.0074 in)
PBIC2446E

CAMSHAFT
EM-211
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Revision: 2004 November 2004 FX35/FX45

Measure the following parts if out of the limit.
–Dimension “A” for camshaft No. 1 journal
–Dimension “B” for cylinder head No. 1 journal

Refer to the standards above, and then replace camshaft and/or
cylinder head.
Camshaft Sprocket Runout
1. Put V-block on precise flat table, and support No. 2 and No. 5 journal of camshaft.
CAUTION:
Do not support journal No. 1 (on the side of camshaft sprocket) because it has a different diameter
from the other three locations.
2. Measure camshaft sprocket runout with dial indicator. (Total indi-
cator reading)

If it exceeds the limit, replace camshaft sprocket.
Valve Lifter and Adjusting Shim
Check if surface of valve lifter and adjusting shim has any wear or
cracks.

If anything above is found, replace valve lifter.

When replacing adjusting shim, refer to EM-217, "ADJUST-
MENT" .
Valve Lifter Clearance
VALVE LIFTER OUTER DIAMETER

Measure outer diameter of valve lifter with micrometer.Standard : 30.500 - 30.548 mm (1.2008 - 1.2027 in)
Standard : 30.360 - 30.385 mm (1.1953 - 1.1963 in)
KBIA2426J
Limit : 0.15 mm (0.0059 in)
PBIC0930E
PBIC0231E
Standard : 33.965 - 33.975 mm (1.3372 - 1.3376 in)
SEM961E

CAMSHAFT
EM-213
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Revision: 2004 November 2004 FX35/FX45
3. Install camshaft brackets.

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

Install by referring to installation location mark on upper sur-
face and front mark.

Install so that installation location mark can be correctly read
when viewed from the side of left exhaust bank.

Apply liquid gasket to mating surface of camshaft bracket (No.
1) as shown in the figure.
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-48, "
RECOMMENDED CHEMICAL PRODUCTS AND
SEALANTS".
CAUTION:

After installation, be sure to wipe off any excessive liq-
uid gasket leaking from part “A” and “B” (both on right
and left sides).

Remove completely any excess of liquid gasket inside
bracket.

Apply liquid gasket to mating surface of camshaft bracket (No.
6) on left bank intake as shown in the figure.
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-48, "
RECOMMENDED CHEMICAL PRODUCTS AND
SEALANTS".
CAUTION:

After installation, be sure to wipe off any excessive liq-
uid gasket leaking from part “A” and “B” (both on right
and left sides).

Remove completely any excess of liquid gasket inside
bracket.
PBIC0034E
PBIC2356E
PBIC2357E

EM-214
[VK45DE]
CAMSHAFT
Revision: 2004 November 2004 FX35/FX45
4. Tighten camshaft bracket bolts in the following steps, in numeri-
cal order as shown in the figure.
a. Tighten No. 9 to 12 in numerical order as shown.
b. Tighten No. 1 to 8 in numerical order as shown.
c. Tighten No. 13 to 14 in numerical order as shown. (Left bank
only)
d. Tighten all bolts in numerical order as shown.
e. Tighten No. 1 to 12 in numerical order as shown.
f. Tighten No. 13 to 14 in numerical order as shown. (Left bank
only)
CAUTION:
After tightening mounting bolts of camshaft brackets, be sure to wipe off excessive liquid gasket
from the parts listed below.

Mating surface of rocker cover

Mating surface of front cover
5. Install camshaft sprockets.

Install by checking with identification mark on surface.

Instal camshaft sprocket (EXH) by selectively using the
groove of dowel pin according to the bank. (Common part
used for both banks.)

Lock the hexagonal part of camshaft in the same way as for
removal, and tighten mounting bolts.
6. Check and adjust valve clearance. Refer to EM-214, "
Valve Clearance" .
7. Install in the reverse order of removal after this step.
Valve ClearanceABS006IL
INSPECTION
In cases of removing/installing or replacing camshaft and valve-related parts, or of unusual engine conditions
due to changes in valve clearance (found malfunctions during starting, idling or causing noise), perform
inspection as follows:
1. Warm up engine. Then stop it.
2. Remove rocker covers (right and left bank). Refer to EM-193, "
ROCKER COVER" .
3. Measure valve clearance as follows:
a. Set No. 1 cylinder at TDC of its compression stroke. : 1.96 N·m (0.2 kg-m, 1 ft-lb)
: 1.96 N·m (0.2 kg-m, 1 ft-lb)
: 1.96 N·m (0.2 kg-m, 1 ft-lb)
: 5.88 N·m (0.6 kg-m, 4 ft-lb)
: 10.41 N·m (1.1 kg-m, 8 ft-lb)
: 31.35 N·m (3.2 kg-m, 23 ft-lb)
PBIC0031E
PBIC2345E

EM-218
[VK45DE]
CAMSHAFT
Revision: 2004 November 2004 FX35/FX45
iii. Place lifter stopper between camshaft and the edge of valve
lifter to retain valve lifter.
CAUTION:

Lifter stopper must be placed as close to camshaft
bracket as possible.

Be careful not to damage cam surface, valve lifter and
cylinder head with lifter stopper.
iv. Remove camshaft pliers.
CAUTION:
Camshaft pliers should be removed by rotating it slowly
because lifter stopper hits and damages journal portion by
rotating camshaft pliers quickly.
b. Exhaust side of No. 7 and No. 8 cylinder;
NOTE:
Exhaust side of No. 7 and No. 8 cylinder does not have space for installing camshaft pliers [SST:
KV10115110 (J38972-1)]. therefore, install lifter stopper [SST: KV10115120 (J38972-2)] according to the
following instructions.
i. Rotate crankshaft to press cam nose to the adjusting part of valve lifter.
ii. Place lifter stopper between camshaft and the edge of valve lifter to retain valve lifter.
CAUTION:

Lifter stopper must be placed as close to camshaft bracket as possible.

Be careful not to damage cam surface, valve lifter and cylinder head with lifter stopper.
iii. Rotate crankshaft slowly 180 degrees clockwise.
CAUTION:
Rotating crankshaft slowly because lifter stopper hits and damages journal portion by rotating
crankshaft quickly.
5. Blow air into the round hole to separate adjusting shim from
valve lifter.
CAUTION:
When blowing, use goggles to protect your eye.
6. Remove adjusting shim with magnetic hand.
7. Use the equation below to calculate adjusting shim thickness for replacement.
PBIC1565E
PBIC1566E
PBIC2359E