2006 INFINITI M35 height

TIMING CHAIN
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Revision: 2006 January2006 M35/M45
e. After installing front timing chain case, check the surface height
difference between the following parts on the oil pan (upper)
mounting surface.
If not within the standard, repeat the installation procedure.
15. Install right and left intake valve timing control covers as follows:
a. Install new seal rings in shaft grooves.
b. Apply a continuous bead of liquid gasket with the tube presser
[SST: WS39930000 ( — )] to intake valve timing control cov-
ers as shown in the figure.
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-48, "
RECOMMENDED CHEMICAL PRODUCTS AND
SEALANTS" .
c. Install new collared O-rings in front timing chain case oil hole
(left and right sides).
d. Being careful not to move seal ring from the installation groove, align dowel pins on front timing chain
case with holes to install intake valve timing control covers.
e. Tighten mounting bolts in numerical order as shown in the fig-
ure.
16. Install oil pans (upper and lower). Refer to EM-29, "
OIL PAN AND OIL STRAINER" .
17. Install rocker covers (right and left banks). Refer to EM-51, "
ROCKER COVER" .
18. Install crankshaft pulley as follows:
a. Fix crankshaft using the ring gear stopper [SST: KV10117700 (J44716)].
b. Install crankshaft pulley, taking care not to damage front oil seal.
When press-fitting crankshaft pulley with plastic hammer, tap on its center portion (not circumference). Standard
Front timing chain case to rear timing chain case:
–0.14 to 0.14 mm (–0.005 to 0.0055 in)
SEM943G
SBIA0492E
PBIC2631E
PBIC0918E

EM-86
[VQ35DE]
CAMSHAFT
Revision: 2006 January2006 M35/M45
7. Remove timing chain tensioner (secondary) from cylinder head.
Remove timing chain tensioner (secondary) with its stopper
pin attached.
NOTE:
Stopper pin should be attached when timing chain (secondary)
is 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 Journal Oil Clearance
CAMSHAFT JOURNAL DIAMETER
Measure the outer diameter of camshaft journal with a microme-
ter.
CAMSHAFT BRACKET INNER DIAMETER
Tighten camshaft bracket bolt with the specified torque. Refer to EM-89, "INSTALLATION" for the tighten-
ing procedure.
PBIC2111E
Standard : Less than 0.02 mm (0.001 in)
Limit : 0.05 mm (0.002 in)PBIC0929E
Standard cam height (intake and exhaust)
: 44.865 - 45.055 mm (1.7663 - 1.7738 in)
Cam wear limit
: 0.2 mm (0.0078 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

EM-88
[VQ35DE]
CAMSHAFT
Revision: 2006 January2006 M35/M45
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-153,
"Available Valve Lifter" .
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 valve lifter hole of cylinder head
with an 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. Limit : 0.15 mm (0.0059 in)
PBIC0930E
KBIA0182E
Standard (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)

EM-98
[VQ35DE]
OIL SEAL
Revision: 2006 January2006 M35/M45
OIL SEALPFP:00100
Removal and Installation of Valve Oil SealNBS004NO
REMOVAL
1. Remove camshaft relating to valve oil seal to be removed. Refer to EM-84, "CAMSHAFT" .
2. Remove valve lifters. Refer to EM-84, "
CAMSHAFT" .
3. Turn crankshaft until the cylinder requiring new oil seals is at TDC. This will prevent valve from dropping
into cylinder.
4. Remove valve collet.
Compress valve spring with the valve spring compressor, the
attachment, the adapter (SST). Remove valve collet with a
magnet hand.
CAUTION:
When working, take care not to damage valve lifter holes.
5. Remove valve spring retainer, and valve spring.
6. Remove valve oil seal using the valve oil seal puller (SST).
INSTALLATION
1. Apply new engine oil on new valve oil seal joint and seal lip.
2. Using the valve oil seal drift (SST), press fit valve seal to height
“H” shown in figure.
NOTE:
Dimension “H”: Height measured before valve spring seat instal-
lation
3. Install in the reverse order of removal after this step.
PBIC1803E
PBIC0884E
Intake and exhaust : 14.3 - 14.9 mm (0.563 - 0.587 in)
PBIC2769E

OIL SEAL
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Removal and Installation of Front Oil SealNBS004NP
REMOVAL
1. Remove the following parts:
Front engine undercover (power tool)
Drive belts; Refer to EM-15, "DRIVE BELTS" .
Crankshaft pulley; Refer to EM-64, "TIMING CHAIN" .
2. Remove front oil seal using a suitable tool.
CAUTION:
Be careful not to damage front timing chain case and crank-
shaft.
INSTALLATION
1. Apply new engine oil to both oil seal lip and dust seal lip of new front oil seal.
2. Install front oil seal.
Install front oil seal so that each seal lip is oriented as shown
in the figure.
Using a suitable drift, press-fit until the height of front oil seal
is level with the mounting surface.
–Suitable drift: outer diameter 60 mm (2.36 in), inner diameter
50 mm (1.97 in).
Make sure the garter spring is in position and seal lips not
inverted
CAUTION:
Be careful not to damage front timing chain case and
crankshaft.
Press-fit straight and avoid causing burrs or tilting oil
seal.
3. Install in the reverse order of removal after this step.
Removal and Installation of Rear Oil SealNBS004NQ
REMOVAL
1. Remove oil pan (upper). Refer to EM-29, "OIL PAN AND OIL STRAINER" .
2. Remove transmission assembly. Refer to AT- 2 7 1 , "
TRANSMISSION ASSEMBLY" .
3. Remove drive plate. Refer to EM-123, "
CYLINDER BLOCK" .
SEM829E
SEM715A
SEM829E

CYLINDER HEAD
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Revision: 2006 January2006 M35/M45
6. Remove valve oil seal using the valve oil seal puller (SST).
7. If valve seat must be replaced, refer to EM-110, "
VALVE SEAT REPLACEMENT" .
8. If valve guide must be replaced, refer to EM-109, "
VALVE GUIDE REPLACEMENT" .
9. Remove spark plug tube, as necessary.
Using a pliers, pull spark plug tube out of cylinder head.
CAUTION:
Take care not to damage cylinder head.
Once removed, spark plug tube will be deformed and cannot be reused. Do not remove it unless
absolutely necessary.
ASSEMBLY
1. When valve guide is removed, install it. Refer to EM-109, "VALVE GUIDE REPLACEMENT" .
2. When valve seat is removed, install it. Refer to EM-110, "
VALVE SEAT REPLACEMENT" .
3. Install new valve oil seals as follows:
a. Apply new engine oil on valve oil seal joint and seal lip.
b. Install with the valve oil seal drift (SST) to match dimension in
the figure.
4. Install valve spring seat.
5. Install valve.
Larger diameter valves are for intake side.
NOTE:
Larger diameter valves are for intake side.
6. Install valve spring (uneven pitch type).
Install narrow pitch end (paint mark) to cylinder head side
(valve spring seat side).
7. Install valve spring retainer.
PBIC0884E
Height “H” (Without valve spring seat installed)
Intake and exhaust : 14.3 - 14.9 mm (0.563 - 0.587 in)
PBIC2769E
Paint mark collar
: Blue
SEM085D

EM-108
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CYLINDER HEAD
Revision: 2006 January2006 M35/M45
8. Install valve collet.
Compress valve spring with the valve spring compressor, the
attachment and the adapter (SST). Install valve collet with a
magnet hand.
CAUTION:
When working, take care not to damage valve lifter holes.
Tap valve stem edge lightly with plastic hammer after installa-
tion to check its installed condition.
9. Install valve lifter.
Install it in the original position.
10. Install spark plug tube.
Press-fit spark plug tube as follows:
a. Remove old locking sealant adhering to cylinder head mounting hole.
b. Apply sealant to area within approximately 12 mm (0.47 in) from edge of spark plug tube press-fit side.
Use Genuine High Strength Locking Sealant or equivalent. Refer to GI-48, "
RECOMMENDED
CHEMICAL PRODUCTS AND SEALANTS" .
c. Using drift, press-fit spark plug tube so that its height “H” is as
specified in the figure.
CAUTION:
When press-fitting, take care not to deform spark plug
tube.
After press-fitting, wipe off liquid gasket protruding onto
cylinder-head upper face.
11. Install spark plug with spark plug wrench (commercial service tool).
Inspection after DisassemblyNBS004NV
VALVE DIMENSIONS
Check the dimensions of each valve. For the dimensions, refer to EM-154, "Valve Dimensions" .
If dimensions are out of the standard, replace valve and check valve seat contact. Refer to EM-110,
"VA LV E S E AT C O N TA C T" .
VALVE GUIDE CLEARANCE
Valve Stem Diameter
Measure the diameter of valve stem with micrometer.
Valve Guide Inner Diameter
Measure the inner diameter of valve guide with bore gauge.
PBIC1803E
Standard press-fit height “H”:
: 38.1 - 39.1 mm (1.500 - 1.539 in)
PBIC2638E
Standard
Intake : 5.965 - 5.980 mm (0.2348 - 0.2354 in)
Exhaust : 5.955 - 5.970 mm (0.2344 - 0.2350 in)
SEM938C

EM-112
[VQ35DE]
CYLINDER HEAD
Revision: 2006 January2006 M35/M45
VALVE SPRING DIMENSIONS AND VALVE SPRING PRESSURE LOAD
Check the valve spring pressure at specified spring height.
If the installation load or load with valve open is out of the standard, replace valve spring. Standard:
Intake and exhaust
Free height
: 47.07 mm (1.8531 in)
Installation height
: 37.0 mm (1.457 in)
Installation load
: 166 - 188 N (16.9 - 19.2 kg, 37 - 42 lb)
Height during valve open
: 27.2 mm (1.0709 in)
Load with valve open
: 373 - 421 N (38.0 - 42.9 kg, 84 - 95 lb)
SEM113