2008 INFINITI FX35 service indicator

CAMSHAFTEM-85
< SERVICE INFORMATION > [VQ35DE]
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6. Remove valve lifter.
 Identify installation positions, and store them without mixing them up.
7. Remove timing chain tensioner (secondary) from cylinder head.  Remove timing chain tensioner (secondary) with its stopperpin attached.
NOTE:
Stopper pin was attached when timing chain (secondary) was
removed.
INSPECTION AFTER REMOVAL
Camshaft Runout
1. Put V-block on precise flat table, and support No. 2 and 4 jour- nals of camshaft.
CAUTION:
Do not support No. 1 journal (on the side of camshaft
sprocket) because it has a different diameter from the other
three locations.
2. Set a dial indicator vertically to No. 3 journal.
3. Turn camshaft to one direction with hands, and measure the camshaft runout on a dial indicator. (Total indicator reading)
4. If it exceeds the limit, replace camshaft.
Camshaft Cam Height
1. Measure the camshaft cam height with a 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 a micrometer.
PBIC2111E
Standard : Less than 0.02 mm (0.0008 in)
Limit : 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: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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EM-86
< SERVICE INFORMATION >[VQ35DE]
CAMSHAFT
CAMSHAFT BRACKET INNER DIAMETER
 Tighten camshaft bracket bolt with the specified tor que. Refer to "INSTALLATION" for the tightening proce-
dure.
 Measure inner diameter “A” of camshaft bracket with a bore gauge.
CAMSHAFT JOURNA L OIL CLEARANCE (Oil clearance) = (Camshaft bracket inner diameter) – (Camshaft journal diameter).
 If the calculated value exceeds the limit, replace either or both camshaft and cylinder head.
NOTE:
Camshaft brackets cannot be replaced as single part s, because there are machined together with cylinder
head. Replace whole cylinder head assembly.
Camshaft End Play
 Install a dial indicator in thrust direction on front end of camshaft. Measure the end play of a 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 4 journals of camshaft. CAUTION:
Do not support No. 1 journal (on the side of cam shaft sprocket) because it has a different diameter
from the other three locations. Standard:
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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CAMSHAFTEM-87
< SERVICE INFORMATION > [VQ35DE]
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2. Measure the camshaft sprocket runout with a dial indicator.
(Total indicator 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. Refer to EM-149,
"Standard and Limit".
Valve Lifter Clearance
VALVE LIFTER OUTER DIAMETER Measure the outer diameter at 1/2 height of valve lifter with a
micrometer since valve lifter is in barrel shape.
VALVE LIFTER HOLE DIAMETER Measure the inner diameter of va lve lifter hole of cylinder head with
an inside micrometer.
VALVE LIFTER CLEARANCE (Valve lifter clearance) = (Valve lifter hole diameter) – (Valve lifter outer diameter) Limit : 0.15 mm (0.0059 in)
PBIC0930E
KBIA0182E
Standard
Identification (stamped) mark “R” or “U” : 33.977 - 33.987 mm (1.3377 - 1.3381 in)
Identification (stamped) mark “V” : 33.980 - 33.990 mm (1.3378 - 1.3382 in)
JEM798G
Standard (Intake and exhaust): 34.000 - 34.016 mm (1.3386 - 1.3392 in)
SEM867E
StandardIdentification (stamped) mark “R” or “U” : 0.013 - 0.039 mm (0.0005 - 0.0015 in)
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EM-92
< SERVICE INFORMATION >[VQ35DE]
CAMSHAFT
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 stating, idling or causing
noise), perform inspection as follows:
1. Remove rocker covers (right and left bank). Refer to
EM-51, "
Component".
2. Measure the valve clearance as follows:
a. Set No. 1 cylinder at TDC of its compression stroke.  Rotate crankshaft pulley clockwise to align timing mark(grooved line without color) with timing indicator.
 Make sure that intake and exhaust cam nose on No. 1 cylinder (engine front side of right bank) are located as shown in the
figure.
 If not, turn crankshaft one revolution (360 degrees) and align as shown in the figure.
b. Use a feeler gauge, measure t he clearance between valve lifter
and camshaft.
Valve clearance:
Unit: mm (in)
*: Approximately 80°C (176 °F)
SEM713A
KBIA1717J
SEM418G
SEM139D
Items Cold Hot * (reference data)
Intake 0.26 - 0.34 (0.010 - 0.013) 0.304 - 0.416 (0.012 - 0.016)
Exhaust 0.29 - 0.37 (0.011 - 0.015) 0.308 - 0.432 (0.012 - 0.017)
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CYLINDER BLOCKEM-139
< SERVICE INFORMATION > [VQ35DE]
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 Measure the clearance between thrust bearings and crankshaft
arm when crankshaft is moved fully forward or backward with a dial
indicator.
 If the measured value exceeds t he limit, replace thrust bearings,
and measure again. If it still exceeds the limit, replace crankshaft
also.
CONNECTING ROD SIDE CLEARANCE
 Measure the side clearance between connecting rod and crank- shaft arm with a feeler gauge.
 If the measured value exceeds the limit, replace connecting rod, and measure again. If it still exceeds the limit, replace crankshaft
also.
PISTON TO PISTON PIN OIL CLEARANCE
Piston Pin Hole Diameter
Measure the inner diameter of piston pin hole with an inside
micrometer.
Piston Pin Outer Diameter
Measure the outer diameter of piston pin with a micrometer.
Piston to Piston Pin Oil Clearance
(Piston to piston pin oil clearance) = (Piston pi n hole diameter) – (Piston pin outer diameter)
 If the calculated value is out of the st andard, replace piston and piston pin assembly.
 When replacing piston and piston pin assembly, refer to EM-134, "
How to Select Piston and Bearing".
NOTE:
 Piston is available together with piston pin as assembly. Standard : 0.10 - 0.25 mm (0.0039 - 0.0098 in)
Limit : 0.30 mm (0.0118 in)
EMQ0196D
Standard : 0.20 - 0.35 mm (0.008 - 0.014 in)
Limit : 0.40 mm (0.016 in)
PBIC0815E
Standard : 21.993 - 22.005 mm (0.8659 - 0.8663 in)
PBIC0116E
Standard : 21.989 - 22.001 mm (0.8657 - 0.8662 in)
PBIC0117E
Standard : 0.002 - 0.006 mm (0.0001 - 0.0002 in)
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CYLINDER BLOCKEM-145
< SERVICE INFORMATION > [VQ35DE]
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 Measure the outer diameter of crankshaft pin journal with a
micrometer.
 If out of the standard, measure the connecting rod bearing oil clearance. Then use undersize bearing. Refer to "CONNECTING
ROD BEARING OIL CLEARANCE".
CRANKSHAFT OUT-OF-ROUND AND TAPER
 Measure the dimensions at four different points as shown in thefigure on each main journal and pin journal with a micrometer.
 Out-of-round is indicated by t he difference in the dimensions
between “X” and “Y” at “A” and “B”.
 Taper is indicated by the difference in the dimensions between “A” and “B” at “X” and “Y”.
 If the measured value exceeds the li mit, correct or replace crankshaft.
 If corrected, measure the bearing oil clearance of the corrected main journal and/or pin journal. Then select the main bearing and/or connecting rod bearing. Refer to "MAIN BEARING OIL CLEARANCE" and/or
"CONNECTING ROD BEARING OIL CLEARANCE".
CRANKSHAFT RUNOUT
 Place V-block on precise flat table, and support the journals on the both end of crankshaft.
 Place a dial indicator straight up on the No. 3 journal.
 While rotating crankshaft, read the movement of the pointer on a dial indicator. (Total indicator reading)
 If it exceeds the limit, replace crankshaft.
CONNECTING ROD BEARING OIL CLEARANCE
Method by Calculation
 Install connecting rod bearings to connecting rod and connecting rod cap, and tighten connecting rod bolts to the specified torque.
Refer to EM-123, "
Disassembly and Assembly" for the tightening
procedure.
 Measure the inner diameter of connecting rod bearing with an
inside micrometer.
(Oil clearance) = (Connecting rod bearing inner diameter) – (Crank-
shaft pin journal diameter) Standard : 51.956 - 51.974 mm (2.0455 - 2.0462 in) dia.
PBIC0127E
Limit:
Out-of-round (Differen ce between “X” and “Y”)
: 0.002 mm (0.0001 in)
Taper (Difference between “A” and “B”) : 0.002 mm (0.0001 in)
SBIA0535E
Standard : Less than 0.05 mm (0.0020 in)
Limit : 0.10 mm (0.0039 in)
SEM346D
Standard : 0.034 - 0.059 mm (0.0013 - 0.0023 in) (actual clearance)
Limit : 0.070 mm (0.0028 in)
PBIC1642E
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SERVICE DATA AND SPECIFICATIONS (SDS)
EM-151
< SERVICE INFORMATION > [VQ35DE]
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*1: Cam wear limit
*
2: Total indicator reading
Valve Lifter
Unit: mm (in)
Valve Clearance
Unit: mm (in)
*: Approximately 80 °C (176 °F)
Available Valve Lifter
Unit: mm (in)
Camshaft cam height “A” Intake and exhaust 44.865 - 45.055 (1.7663 - 1.7738)
0.2 (0.008)*1
Camshaft runout (TIR*2)Less than 0.02 mm (0.0008) 0.05 (0.0020)
Camshaft sprocket runout (TIR*
2) — 0.15 (0.0059)
SEM671
Items Standard
Valve lifter outer diameter Identification (stamped)
mark “R” or “U” 33.977 - 33.987 (1.3377 - 1.3381)
Identification (stamped) mark “V” 33.980 - 33.990 (1.3378 - 1.3382)
Valve lifter hole diameter 34.000 - 34.016 (1.3386 - 1.3392)
Valve lifter clearance Identification (stamped) mark “R” or “U” 0.013 - 0.039 (0.0005 - 0.0015)
Identification (stamped) mark “V” 0.010 - 0.036 (0.0004 - 0.0014)
Items Cold Hot* (reference data)
Intake 0.26 - 0.34 (0.010 - 0.013) 0.304 - 0.416 (0.012 - 0.016)
Exhaust 0.29 - 0.37 (0.011 - 0.015) 0.308 - 0.432 (0.012 - 0.017)
Identification (stamped) mark Thickness
788U 788R 788V 7.88 (0.3102)
790U 790R 790V 7.90 (0.3110)
792U 792R 792V 7.92 (0.3118)
794U 794R 794V 7.94 (0.3126)
796U 796R 796V 7.96 (0.3134)
798U 798R 798V 7.98 (0.3142)
800U 800R 800V 8.00 (0.3150)
802U 802R 802V 8.02 (03.157)
804U 804R 804V 8.04 (0.3165)
806U 806R 806V 8.06 (0.3173)
808U 808R 808V 8.08 (0.3181)
810U 810R 810V 8.10 (0.3189)
812U 812R 812V 8.12 (0.3197)
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SERVICE DATA AND SPECIFICATIONS (SDS)
EM-157
< SERVICE INFORMATION > [VQ35DE]
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*: After installing in connecting rod
CRANKSHAFT
Unit: mm (in)
*: Total indicator reading
MAIN BEARING
Connecting rod big end diameter (Without bearing) 55.000 - 55.013 (2.1654 - 2.1659) —
Side clearance 0.20 - 0.35 (0.008 - 0.014) 0.40 (0.016)
Main journal diameter. “Dm” grade Standard Grade No. A
Grade No. B
Grade No. C
Grade No. D
Grade No. E
Grade No. F
Grade No. G
Grade No. H
Grade No. J
Grade No. K
Grade No. L
Grade No. M
Grade No. N
Grade No. P
Grade No. R
Grade No. S
Grade No. T
Grade No. U
Grade No. V
Grade No. W
Grade No. X
Grade No. Y
Grade No. 4
Grade No. 759.974 - 59.975 (2.3612 - 2.3612)
59.973 - 59.974 (2.3611 - 2.3612)
59.972 - 59.973 (2.3611 - 2.3611)
59.971 - 59.972 (2.3611 - 2.3611)
59.970 - 59.971 (2.3610 - 2.3611)
59.969 - 59.970 (2.3610 - 2.3610)
59.968 - 59.969 (2.3609 - 2.3610)
59.967 - 59.968 (2.3609 - 2.3609)
59.966 - 59.967 (2.3609 - 2.3609)
59.965 - 59.966 (2.3608 - 2.3609)
59.964 - 59.965 (2.3608 - 2.3608)
59.963 - 59.964 (2.3607 - 2.3608)
59.962 - 59.963 (2.3607 - 2.3607)
59.961 - 59.962 (2.3607 - 2.3607)
59.960 - 59.961 (2.3606 - 2.3607)
59.959 - 59.960 (2.3606 - 2.3606)
59.958 - 59.959 (2.3605 - 2.3606)
59.957 - 59.958 (2.3605 - 2.3605)
59.956 - 59.957 (2.3605 - 2.3605)
59.955 - 59.956 (2.3604 - 2.3605)
59.954 - 59.955 (2.3604 - 2.3604)
59.953 - 59.954 (2.3603 - 2.3604)
59.952 - 59.953 (2.3603 - 2.3603)
59.951 - 59.952 (2.3603 - 2.3603)
Pin journal diameter. “Dp” Standard Grade No. 0 51.968 - 51.974 (2.0460 - 2.0462)
Grade No. 1 51.962 - 51.968 (2.0457 - 2.0460)
Grade No. 2 51.956 - 51.962 (2.0455 - 2.0457)
Center distance “r” 40.66 - 40.74 (1.6008 - 1.6039)
Taper (Difference between “A” and “B”) Limit 0.002 (0.0001)
Out-of-round (Difference between “X” and “Y”) 0.002 (0.0001)
Crankshaft runout (TIR*) Standard Less than 0.05 (0.002)
Limit 0.10 (0.0039)
Crankshaft end play Standard 0.10 - 0.25 (0.0039 - 0.0098)
Limit 0.30 (0.0118)
SEM645SBIA0535E
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