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![INFINITI FX35 2004 Service Manual EM-84
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CAMSHAFT
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7. Remove secondary timing chain tensioner from cylinder head.
Remove chain tensioner with its stopper pin attached.
NOTE:
Stopper pin w INFINITI FX35 2004 Service Manual EM-84
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7. Remove secondary timing chain tensioner from cylinder head.
Remove chain tensioner with its stopper pin attached.
NOTE:
Stopper pin w](/manual-img/42/57021/w960_57021-2808.png)
EM-84
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Revision: 2004 November 2004 FX35/FX45
7. Remove secondary timing chain tensioner from cylinder head.
Remove chain tensioner with its stopper pin attached.
NOTE:
Stopper pin was attached when secondary timing chain was
removed.
INSPECTION AFTER REMOVAL
Camshaft Runout
1. Put V block on precise flat bed, and support No. 2 and No. 4
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 gauge vertically to No. 3 journal.
3. Turn camshaft to one direction with hands, and measure cam-
shaft runout on dial gauge. (Total indicator reading)
4. If it exceeds the standard, replace camshaft.
Camshaft Cam Height
1. Measure camshaft cam height.
2. If wear is beyond the limit, replace camshaft.
Camshaft Journal Oil Clearance
Outer Diameter of Camshaft Journal
Measure outer diameter of camshaft journal.
Inner Diameter of Camshaft Bracket
Tighten camshaft bracket bolt with specified torque. Refer to EM-87, "INSTALLATION" .
SBIA0499E
Standard : Less than 0.05 mm (0.0020 in)PBIC0929E
Standard cam height (intake and exhaust)
: 44.865 - 45.055 mm (1.7663 - 1.7738 in)
Cam wear limit
: 0.2 mm (0.008 in)
EMQ0072D
Standard outer diameter:
No. 1: 25.935 - 25.955 mm (1.0211 - 1.0218 in)
No. 2, 3, 4: 23.445 - 23.465 mm (0.9230 - 0.9238 in)
PBIC0040E
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Using inside micrometer, measure inner diameter “A” of cam-
shaft bracket.
Calculation of Camshaft Journal INFINITI FX35 2004 Service Manual CAMSHAFT
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Using inside micrometer, measure inner diameter “A” of cam-
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Calculation of Camshaft Journal](/manual-img/42/57021/w960_57021-2809.png)
CAMSHAFT
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Using inside micrometer, measure inner diameter “A” of cam-
shaft bracket.
Calculation of Camshaft Journal Oil Clearance
(Journal oil clearance) = (inner diameter of camshaft bracket) – (outer diameter of camshaft journal).
If it exceeds the limit, 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).
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. 4 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.Standard inner diameter:
No. 1 : 26.000 - 26.021 mm (1.0236 - 1.0244 in)
No. 2, 3, 4 : 23.500 - 23.521 mm (0.9252 - 0.9260 in)
PBIC1645E
Standard:
No. 1 : 0.045 - 0.086 mm (0.0018 - 0.0034 in)
No. 2, 3, 4 : 0.035 - 0.076 mm (0.0014 - 0.0030 in)
Limit : 0.15 mm (0.0059 in)
Standard : 0.115 - 0.188 mm (0.0045 - 0.0074 in)
Limit : 0.24 mm (0.0094 in)
SEM864E
Standard : 27.500 - 27.548 mm (1.0827 - 1.0846 in)
Standard : 27.360 - 27.385 mm (1.0772 - 1.0781 in)
KBIA2404J
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2. Measure camshaft sprocket runout with dial indicator. (Total indi-
cator reading)
If it exceeds the limit, replace camshaft sprocket. INFINITI FX35 2004 Service Manual EM-86
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2. Measure camshaft sprocket runout with dial indicator. (Total indi-
cator reading)
If it exceeds the limit, replace camshaft sprocket.](/manual-img/42/57021/w960_57021-2810.png)
EM-86
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Revision: 2004 November 2004 FX35/FX45
2. Measure camshaft sprocket runout with dial indicator. (Total indi-
cator reading)
If it exceeds the limit, replace camshaft sprocket.
Valve Lifter
Check if surface of valve lifter has any wear or cracks.
If anything above is found, replace valve lifter.
Valve Lifter Clearance
Outer Diameter of Valve Lifter
Measure outer diameter at 1/2 height of valve lifter with micrometer
since valve lifter is in barrel shape.
Valve Lifter Hole Diameter
Using inside micrometer, measure diameter of valve lifter hole of cyl-
inder head.
Calculation of Valve Lifter Clearance
(Valve lifter clearance) = (hole diameter of valve lifter) – (outer diameter of valve lifter).
If it exceeds the standard, referring to each standard of valve lifter outer diameter and valve lifter hole diame-
ter, replace either or both valve lifter and cylinder head.Limit : 0.15 mm (0.0059 in)
PBIC0930E
KBIA0182E
Valve lifter outer diameter (Intake and exhaust)
: 33.977 - 33.987 mm (1.3377 - 1.3381 in)
JEM798G
Standard (Intake and exhaust)
: 34.000 - 34.016 mm (1.3386 - 1.3392 in)
SEM867E
Standard (Intake and exhaust)
: 0.013 - 0.039 mm (0.0005 - 0.0015 in)
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INSTALLATION
1. Install secondary chain tensioners on both sides of cylinder
head.
Install chain tensioner wit INFINITI FX35 2004 Service Manual CAMSHAFT
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INSTALLATION
1. Install secondary chain tensioners on both sides of cylinder
head.
Install chain tensioner wit](/manual-img/42/57021/w960_57021-2811.png)
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INSTALLATION
1. Install secondary chain tensioners on both sides of cylinder
head.
Install chain tensioner with its stopper pin attached.
Install tensioner with sliding part facing downward on right-
side cylinder head, and with sliding part facing upward on left-
side cylinder head.
Install new O-ring as shown in the figure.
2. Install valve lifter.
Install it in the original position.
3. Install camshafts.
Install camshaft with dowel pin attached to its front end face
on exhaust side.
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 and dowel pin on front
end face are positioned as shown in figure. (No. 1 cylinder
TDC on its compression stroke)
NOTE:
Large- and small-pin holes are located on front end face of
intake camshaft, at intervals of 180°. Face small dia. side pin
hole upward (in cylinder head upper face direction).
SBIA0499E
KBIA1071E
Bank INT/EXH Dowel pinPaint marks
Identification
mark
M1 M2
RightINT No Pink No RE
EXH Yes No Orange RE
LeftINT No Pink No LH
EXH Yes No Orange LH
KBIA1009E
KBIA1072E
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EM-88
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Revision: 2004 November 2004 FX35/FX45
4. 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.
Install No. 2 to 4 camshaft brackets aligning stamp marks as
shown in the figure.
NOTE:
There are no identification marks indicating left and right for
No. 1 camshaft bracket.
Apply sealant to mating surface of No. 1 camshaft bracket as
shown on right and left banks.
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-48, "
RECOMMENDED CHEMICAL PRODUCTS AND
SEALANTS" .
PBIC2051E
PBIC2052E
PBIC0915E
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5. Tighten camshaft brackets in the following steps, in numerical
order as shown in the figure.
a. Tighten No. INFINITI FX35 2004 Service Manual CAMSHAFT
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5. Tighten camshaft brackets in the following steps, in numerical
order as shown in the figure.
a. Tighten No.](/manual-img/42/57021/w960_57021-2813.png)
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5. Tighten camshaft brackets in the following steps, in numerical
order as shown in the figure.
a. Tighten No. 7 to 10, then tighten No. 1 to 6 in order as shown.
b. Tighten all bolts in numerical order as shown.
c. Tighten all bolts in the numerical order as shown.
CAUTION:
After tightening mounting bolts of No. 1 camshaft brackets
(No. 1), be sure to wipe off excessive liquid gasket from the
parts list below.
Mating surface of rocker cover
Mating surface of rear timing chain case
6. Measure difference in levels between front end faces of No. 1
camshaft bracket and cylinder head.
If measurement is outside the specified range, re-install cam-
shaft and camshaft bracket.
7. Inspect and adjust valve clearance. Refer to EM-89, "
Valve Clearance" .
8. Install in the reverse order of removal after this step.
Va l v e C l e a r a n c eABS004XG
INSPECTION
Perform inspection as follows after removal, installation or replace-
ment of camshaft or valve-related parts, or if there is unusual engine
conditions regarding valve clearance.
1. Remove right and left rocker covers with power tool. Refer to EM-51, "
ROCKER COVER" .
2. Measure valve clearance as below:
a. Set No. 1 cylinder at TDC of its compression stroke. : 1.96 N·m (0.20 kg-m, 1 ft-lb)
: 5.88 N·m (0.60 kg-m, 4 ft-lb)
: 10.4 N·m (1.1 kg-m, 8 ft-lb)
PBIC2050E
Standard : –0.14 to 0.14 mm (–0.0055 to 0.0055 in)
EMQ0044D
SEM713A
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Rotate crankshaft pulley clockwise to align timing mark
(grooved line without color) with timing indicator.
Make sure No. 1 cylinder intake and exhaust cam nose is fac-
ing in direction as shown in figure.
If not, rotate crankshaft pulley 360° clockwise (when viewed
from front).
b. Using a feeler gauge, measure valve clearance.
*: Approximately 80°C (176°F) (Reference data)
KBIA1717J
SEM418G
Valve clearance standard:
Cold Intake : 0.26 - 0.34 mm (0.010 - 0.013 in)
Exhaust : 0.29 - 0.37 mm (0.011 - 0.015 in)
Hot* Intake : 0.304 - 0.416 mm (0.012 - 0.016 in)
Exhaust : 0.308 - 0.432 mm (0.012 - 0.016 in)
SEM139D
KBIA0185E
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No. 1 cylinder at compression TDC
c. Rotate crankshaft by 240° clockwise (when viewed from front) to
align No. 3 cylinder at TDC of its compression stroke.
NOTE:
Crankshaft pulley mounting bolt flange has a stamped line every
60°. They can be used as a guide to rotation angle.
No. 3 cylinder at compression TDC
Measuring position (right bank) No. 1 CYL. No. 3 CYL. No. 5 CYL.
No. 1 cylinder at
TDCEXH×
INT×
Measuring position (left bank) No. 2 CYL. No. 4 CYL. No. 6 CYL.
No. 1 cylinder at
TDCINT×
EXH×
PBIC2054E
SEM751G
Measuring position (right bank) No. 1 CYL. No. 3 CYL. No. 5 CYL.
No. 3 cylinder at
TDCEXH×
INT×
Measuring position (left bank) No. 2 CYL. No. 4 CYL. No. 6 CYL.
No. 3 cylinder at
TDCINT×
EXH ×
PBIC2055E