Page 3009 of 4462
CAMSHAFT EM-215
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EM
Revision: 2006 December 2006 FX35/FX45
CAMSHAFTPFP:13001
ComponentsNBS003ID
Refer to GI-11, "Components" for symbol marks in the figure.
Removal and InstallationNBS003IE
REMOVAL
1. Remove engine assembly from vehicle. Refer to EM-243, "ENGINE ASSEMBLY" .
2. Remove timing chain. Refer to EM-203, "
TIMING CHAIN" .
1. Cylinder head (right bank) 2. Camshaft bracket (No. 2 to 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 5) 21. Camshaft bracket (No. 6)
22. Harness bracket 23. Harness bracket
A. Refer to EM-219
.
PBIC4661E
Page 3010 of 4462
![INFINITI FX35 2006 Service Manual EM-216
[VK45DE]
CAMSHAFT
Revision: 2006 December 2006 FX35/FX45
3. With hexagonal part of camshaft locked with wrench, loosen bolts securing camshaft sprocket to remove camshaft sprocket.
CAUTION:
INFINITI FX35 2006 Service Manual EM-216
[VK45DE]
CAMSHAFT
Revision: 2006 December 2006 FX35/FX45
3. With hexagonal part of camshaft locked with wrench, loosen bolts securing camshaft sprocket to remove camshaft sprocket.
CAUTION:
](/manual-img/42/57019/w960_57019-3009.png)
EM-216
[VK45DE]
CAMSHAFT
Revision: 2006 December 2006 FX35/FX45
3. With hexagonal part of camshaft locked with wrench, loosen bolts securing camshaft sprocket to remove camshaft sprocket.
CAUTION:
Do not loosen mounting bolts with securing anything
other than the camshaft hexagonal portion or with ten-
sioning the timing chain.
After removing timing chain, do not turn crankshaft and
camshaft separately, or valves will strike the piston head.
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 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
four locations.
2. Set dial indicator vertically to No. 3 journal.
3. Turn camshaft to one direction with hands, and measure the camshaft runout on dial indicator. (Total indicator reading)
4. If it exceeds the limit, replace camshaft.
PBIC0030E
PBIC0031E
Limit : 0.02 mm (0.001 in)PBIC2499E
Page 3011 of 4462
![INFINITI FX35 2006 Service Manual CAMSHAFT EM-217
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EM
Revision: 2006 December 2006 FX35/FX45
Camshaft Cam Height
1. Measure the camshaft cam height with micrometer.
2. If wear exceeds the l INFINITI FX35 2006 Service Manual CAMSHAFT EM-217
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EM
Revision: 2006 December 2006 FX35/FX45
Camshaft Cam Height
1. Measure the camshaft cam height with micrometer.
2. If wear exceeds the l](/manual-img/42/57019/w960_57019-3010.png)
CAMSHAFT EM-217
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EM
Revision: 2006 December 2006 FX35/FX45
Camshaft Cam Height
1. Measure the camshaft cam height with micrometer.
2. If wear exceeds the limit, replace camshaft.
Camshaft Journal Oil Clearance
CAMSHAFT JOURNAL DIAMETER
Measure the outer diameter of camshaft journal with microme-
ter.
CAMSHAFT BRACKET INNER DIAMETER
Tighten camshaft bracket bolt with the specified torque. Refer to EM-219, "INSTALLATION" for the tight-
ening procedure.
Measure the inner diameter “A” of camshaft bracket with bore
gauge.
CAMSHAFT JOURNAL OIL CLEARANCE
(Oil clearance) = (Camshaft bracket inner diameter) – (Camshaft journal diameter).
If the calculated value out of the standard, replace either or both camshaft and cylinder head.
NOTE:
Camshaft bracket cannot be replaced as a single part, because it is machined together with cylinder head.
Replace whole cylinder head assembly. 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
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)
Page 3012 of 4462
![INFINITI FX35 2006 Service Manual EM-218
[VK45DE]
CAMSHAFT
Revision: 2006 December 2006 FX35/FX45
Camshaft End Play
Install dial indicator in thrust direction on front end of camshaft.
Measure the end play of dial indicator when cam INFINITI FX35 2006 Service Manual EM-218
[VK45DE]
CAMSHAFT
Revision: 2006 December 2006 FX35/FX45
Camshaft End Play
Install dial indicator in thrust direction on front end of camshaft.
Measure the end play of dial indicator when cam](/manual-img/42/57019/w960_57019-3011.png)
EM-218
[VK45DE]
CAMSHAFT
Revision: 2006 December 2006 FX35/FX45
Camshaft End Play
Install dial indicator in thrust direction on front end of camshaft.
Measure the end play of dial indicator when camshaft is moved
forward/backward (in direction to axis).
Measure the following parts if out of the limit.
–Dimension “A” for camshaft No. 1 journal
–Dimension “B” for cylinder head No. 1 journal bearing
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 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 four locations.
2. Measure the camshaft sprocket runout with dial indicator. (Total indicator 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-224, "ADJUST-
MENT" .
Standard:
0.115 - 0.188 mm (0.0045 - 0.0074 in)
PBIC2446E
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
Page 3013 of 4462
![INFINITI FX35 2006 Service Manual CAMSHAFT EM-219
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EM
Revision: 2006 December 2006 FX35/FX45
Valve Lifter Clearance
VALVE LIFTER OUTER DIAMETER
Measure the outer diameter of valve lifter wi INFINITI FX35 2006 Service Manual CAMSHAFT EM-219
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EM
Revision: 2006 December 2006 FX35/FX45
Valve Lifter Clearance
VALVE LIFTER OUTER DIAMETER
Measure the outer diameter of valve lifter wi](/manual-img/42/57019/w960_57019-3012.png)
CAMSHAFT EM-219
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EM
Revision: 2006 December 2006 FX35/FX45
Valve Lifter Clearance
VALVE LIFTER OUTER DIAMETER
Measure the outer diameter of valve lifter with micrometer.
VALVE LIFTER HOLE DIAMETER
Measure the inner diameter of valve lifter hole of cylinder head
with inside micrometer.
VALVE LIFTER CLEARANCE
(Valve lifter clearance) = (Valve lifter hole diameter) – (Valve lifter outer diameter)
If the calculated value is out of the standard, referring to each standard of valve lifter outer diameter and
valve lifter hole diameter, replace either or both valve lifter and cylinder head.
INSTALLATION
1. Install valve lifters and adjusting shims if removed.
Install it in the original position.
2. Install camshafts.
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. Standard : 33.965 - 33.975 mm (1.3372 - 1.3376 in)
SEM961E
Standard : 34.000 - 34.016 mm (1.3386 - 1.3392 in)
SEM867E
Standard : 0.025 - 0.51 mm (0.0010 - 0.0200 in)
Bank INT/EXH
Identification
rib Paint marks
Identification
mark
M1 M2
RH INT Yes White No RH
EXH Yes No White RH
LH INT No White No LH
EXH No No White LH
PBIC2355E
Page 3014 of 4462
![INFINITI FX35 2006 Service Manual EM-220
[VK45DE]
CAMSHAFT
Revision: 2006 December 2006 FX35/FX45
Install camshaft so that dowel pin on front end face are posi-
tioned as shown in the figure. (No. 1 cylinder TDC on its com-
pression INFINITI FX35 2006 Service Manual EM-220
[VK45DE]
CAMSHAFT
Revision: 2006 December 2006 FX35/FX45
Install camshaft so that dowel pin on front end face are posi-
tioned as shown in the figure. (No. 1 cylinder TDC on its com-
pression](/manual-img/42/57019/w960_57019-3013.png)
EM-220
[VK45DE]
CAMSHAFT
Revision: 2006 December 2006 FX35/FX45
Install camshaft so that dowel pin on front end face are posi-
tioned as shown in the figure. (No. 1 cylinder TDC on its com-
pression stroke)
NOTE:
Though camshaft does not stop at the position as shown in
the figure, for the placement of cam nose, it is generally
accepted camshaft is placed for the same direction of the fig-
ure.
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.
Camshaft dowel pin
: At cylinder head upper face side in each bank
SBIA0366E
PBIC0034E
PBIC2356E
PBIC2357E
Page 3015 of 4462
![INFINITI FX35 2006 Service Manual CAMSHAFT EM-221
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EM
Revision: 2006 December 2006 FX35/FX45
4. Tighten camshaft bracket bolts in the following steps, in numeri- cal order as shown in the f INFINITI FX35 2006 Service Manual CAMSHAFT EM-221
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EM
Revision: 2006 December 2006 FX35/FX45
4. Tighten camshaft bracket bolts in the following steps, in numeri- cal order as shown in the f](/manual-img/42/57019/w960_57019-3014.png)
CAMSHAFT EM-221
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EM
Revision: 2006 December 2006 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.
Install 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 the valve clearance. Refer to EM-222, "
Valve Clearance" .
7. Install in the reverse order of removal after this step.
INSPECTION AFTER INSTALLATION
Inspection of Camshaft Sprocket (INT) Oil Groove
CAUTION:
Perform this inspection only when DTC P0011 and/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-748,
"TROUBLE DIAGNOSIS" .
Check when the engine is cold so as to prevent burns from any splashing engine oil.
1. Check the engine oil level. Refer to LU-25, "
ENGINE OIL" .
2. Perform the following procedure so as to prevent the engine from being unintentionally started while checking.
a. Release fuel pressure. Refer to EC-746, "
FUEL PRESSURE RELEASE" .
b. Disconnect ignition coil and injector harness connectors.
3. Remove intake valve timing control solenoid valve. Refer to EM-203, "
TIMING CHAIN" .
: 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
Page 3016 of 4462
![INFINITI FX35 2006 Service Manual EM-222
[VK45DE]
CAMSHAFT
Revision: 2006 December 2006 FX35/FX45
4. Crank the engine, and then make sure that engine oil comes out from intake valve timing control cover oil hole. End crank after
check INFINITI FX35 2006 Service Manual EM-222
[VK45DE]
CAMSHAFT
Revision: 2006 December 2006 FX35/FX45
4. Crank the engine, and then make sure that engine oil comes out from intake valve timing control cover oil hole. End crank after
check](/manual-img/42/57019/w960_57019-3015.png)
EM-222
[VK45DE]
CAMSHAFT
Revision: 2006 December 2006 FX35/FX45
4. Crank the engine, and then make sure that engine oil comes out from intake valve timing control cover oil hole. End crank after
checking.
WARNING:
Be careful not to touch rotating parts (drive belt, 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 mount 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 intake valve timing control cover oil hole. Refer to LU-23, "
LUBRICATION SYSTEM" .
5. 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-23, "LUBRICATION SYSTEM" .
6. After inspection, install removed parts.
Valve ClearanceNBS003IF
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. Remove rocker covers (right and left bank). Refer to EM-200, "
ROCKER COVER" .
2. Measure the valve clearance as follows:
a. Set No. 1 cylinder at TDC of its compression stroke.
Rotate crankshaft pulley in clockwise to align TDC identifica-
tion notch (without paint mark) with timing indicator on front
cover.
Make sure that both intake and exhaust cam noses of No. 1
cylinder (engine front side of left bank) are located as shown
in the figure.
If not, turn crankshaft one revolution (360 degrees) and align
as shown in the figure.
PBIC2848E
PBIC2341E
KBIA0400J