2008 INFINITI FX35 installation

CAMSHAFTEM-211
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CAMSHAFT
ComponentINFOID:0000000001325790
 Refer to
GI-8, "Component" for symbols in the figure.
Removal and InstallationINFOID:0000000001325791
REMOVAL
1. Remove engine assembly from vehicle. Refer to EM-237, "Component".
2. Remove timing chain. Refer to EM-199, "
Component".
1. Cylinder head (right bank) 2. Camshaft bracket (No. 2 to 5) 3. Valve lifter
4. Camshaft bracket (No. 1) 5. Washer 6. Camshaft (EXH)
7. Camshaft sprocket (EXH) 8. Camshaf t sprocket (INT) 9. Camshaft (INT)
10. Bracket 11. Cylinder head (left bank) 12. Valve lifter
13. Camshaft (INT) 14. Camshaft sprocket (INT) 15. Camshaft sprocket (EXH)
16. Camshaft (EXH) 17. Camshaft bracket (No. 1) 18. Washer
19. Camshaft bracket (No. 2 to 5) 20. Camshaft bracket (No. 6)
A. Refer to EM-211
PBIC5276E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

EM-212
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CAMSHAFT
3. With hexagonal part of camshaft locked with wrench, loosen
bolts securing camshaft sprocket to remove camshaft sprocket.
CAUTION:
 Do not loosen mounting bol ts 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 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 journalof camshaft.
CAUTION:
Do not support journal No. 1 (on the side of camshaft
sprocket) because it has a differe nt 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.
Camshaft Cam Height
PBIC0030E
PBIC0031E
Limit : 0.02 mm (0.001 in)PBIC2499E
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CAMSHAFTEM-213
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1. Measure the camshaft cam height with micrometer.
2. If wear exceeds the limit, replace camshaft.
Camshaft Journa
l Oil Clearance
CAMSHAFT JOURNAL DIAMETER Measure the outer diameter of camshaft journal with micrometer.
CAMSHAFT BRACKET INNER DIAMETER Tighten camshaft bracket bolt with the specified torque. Refer to "INSTALLATION" for the tightening proce-
dure.
 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.
Camshaft End Play
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)
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

CAMSHAFTEM-215
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 Measure the outer diameter of valve lifter with micrometer.
VALVE LIFTER HOLE DIAMETER Measure the inner diameter of va
lve 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, referr ing 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 lifter 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 camshafts
for proper placement and direction.Standard : 33.977 - 33.987 mm (1.3377 - 1.3381 in)
JEM798G
Standard : 34.000 - 34.016 mm (1.3386 - 1.3392 in)
SEM867E
Standard : 0.013 - 0.039 mm (0.0005 - 0.0015 in)
Bank INT/EXH
Identification
rib Paint marks
Identification
mark
M1 M2
RH EXH Yes No White RH
INT Yes White No RH
LH INT No White No LH
EXH No No White LH
PBIC2355E
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EM-216
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CAMSHAFT
 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 figure.
3. Install camshaft brackets.  Remove foreign material completely from camshaft bracketbackside 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 Seal ant or equivalent. Refer to
GI-44, "
Recommended Chemical Product and Sealant".
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 Seal ant or equivalent. Refer to
GI-44, "
Recommended Chemical Product and Sealant".
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
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CAMSHAFTEM-217
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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 br ackets, 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 thegroove 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-218, "
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-III and it is directed according to inspection procedure of EC section. Refer to EC-666,
"Trouble Diagnosis Introduction".
 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-23, "
Inspection".
2. Perform the following procedure so as to prev ent the engine from being unintentionally started while
checking. : 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
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

EM-218
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CAMSHAFT
a. Release fuel pressure. Refer to
EC-665, "Fuel Pressure Check".
b. Disconnect ignition coil and injector harness connectors.
3. Remove intake valve timing control solenoid valve. Refer to EM-199, "
Component".
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 rotati ng 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 co mponents 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-21, "
Lubrication Circuit".
5. Remove components between intake valve timing c ontrol solenoid valve and camshaft sprocket (INT),
and then check each oil groove for clogging.
 Clean oil groove if necessary. Refer to LU-21, "
Lubrication Circuit".
6. After inspection, install removed parts.
Valve ClearanceINFOID:0000000001325792
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 dur ing starting, idling or causing noise), perform
inspection as follows:
1. Remove rocker covers (right and left bank). Refer to EM-196, "
Component".
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
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EM-220
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CAMSHAFT
 By referring to the figure, measure the valve clearances at
locations marked “ ×” as shown in the table below (locations
indicated with white arrow in figure).
 No. 3 cylinder at compression TDC
d. Rotate crankshaft pulley clockwise (when view from engine front) by 90 degrees from the posit ion of No. 3 cylinder compres-
sion TDC to align No. 6 cylinder at TDC of its compression
stroke.
 By referring to the figure, measure the valve clearances at locations marked “ ×” as shown in the table below.
 No. 6 cylinder at compression TDC
3. For the measured value are out of the standard, perform adjustment. Refer to "ADJUSTMENT".
ADJUSTMENT
 Perform adjustment depending on selected head thickness of valve lifter.
1. Measure the valve clearance. Refer to EM-218, "
Valve Clearance".
2. Remove camshaft. Refer to EM-211, "
Removal and Installation".
3. Remove valve lifters at the locations that are out of the standard.
Measuring position (right bank) No. 2
CYL. No. 4
CYL. No. 6
CYL. No. 8
CYL.
No. 3 cylinder at
compression TDC EXH
×
INT ×
Measuring position (left bank) No. 1
CYL. No. 3
CYL. No. 5
CYL. No. 7
CYL.
No. 3 cylinder at
compression TDC INT
××
EXH ××
PBIC2358E
PBIC2346E
Measuring position (right bank) No. 2
CYL. No. 4
CYL. No. 6
CYL. No. 8
CYL.
No. 6 cylinder at
compression TDC EXH
× ×
INT ×
PBIC0824E
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