stall INFINITI M35 2006 Factory Service Manual

EM-222
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CAMSHAFT
Revision: 2006 January2006 M35/M45
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.
WA R N I N G :
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-24, "
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-24, "LUBRICATION SYSTEM" .
6. After inspection, install removed parts.
INSPECTION AFTER INSTALLATION
Inspection for Leaks
The following are procedures for checking fluids leak, lubricates leak and exhaust gases leak.
Before starting engine, check oil/fluid levels including engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to MA-12, "
RECOMMENDED FLUIDS AND LUBRICANTS" .
Use procedure below to check for fuel leakage.
–Turn ignition switch “ON” (with engine stopped). With fuel pressure applied to fuel piping, check for fuel
leakage at connection points.
–Start engine. With engine speed increased, check again for fuel leakage at connection points.
Run engine to check for unusual noise and vibration.
NOTE:
If hydraulic pressure inside timing chain tensioner drops after removal/installation, slack in guide may gen-
erate a pounding noise during and just after engine start. However, this does not indicate an unusualness.
Noise will stop after hydraulic pressure rises.
Warm up engine thoroughly to make sure there is no leakage of fuel, exhaust gases, or any oil/fluids
including engine oil and engine coolant.
Bleed air from lines and hoses of applicable lines, such as in cooling system.
After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to the
specified level, if necessary.
Summary of the inspection items:
* Transmission/transaxle/CVT fluid, power steering fluid, brake fluid, etc.
Valve ClearanceNBS004PB
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-199, "
ROCKER COVER" .
PBIC2848E
Item Before starting engine Engine running After engine stopped
Engine coolant Level Leakage Level
Engine oil Level Leakage Level
Other oils and fluid* Level Leakage Level
Fuel Leakage Leakage Leakage
Exhaust gases — Leakage —

CAMSHAFT
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d. Rotate crankshaft pulley clockwise (when view from engine
front) by 90 degrees from the position 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. Perform adjustment if the measured value is out of the standard. Refer to EM-225, "
ADJUSTMENT" .
ADJUSTMENT
NOTE:
Adjust valve clearance while engine is cold.
1. Thoroughly wipe off engine oil around adjusting shim using rag.
2. Rotate crankshaft to position cam nose on camshaft of valve that must be adjusted upward.
3. Using small screwdriver, turn the round hole of adjusting shim in
the direction of the arrow.
CAUTION:
Perform the above procedure so as not to contact camshaft
with adjusting shim.
4. Install lifter stopper [SST: 10115120 (J38972-2)] as follows:
a. Except exhaust side of No. 7 and 8 cylinder;
i. Place camshaft pliers (SST) around camshaft as shown in the
figure.
ii. Rotate camshaft pliers so that valve lifter is pushed down.
CAUTION:
Be careful not to damage cam surface, valve lifter and cylin-
der head with camshaft pliers.
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
PBIC0047E
PBIC2276E

EM-226
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CAMSHAFT
Revision: 2006 January2006 M35/M45
iii. Place lifter stopper between camshaft and the edge of valve
lifter to retain valve lifter.
CAUTION:
Lifter stopper must be placed as close to camshaft
bracket as possible.
Be careful not to damage cam surface, valve lifter and
cylinder head with lifter stopper.
iv. Remove camshaft pliers.
CAUTION:
Camshaft pliers should be removed by rotating it slowly
because lifter stopper hits and damages journal portion by
rotating camshaft pliers quickly.
b. Exhaust side of No. 7 and 8 cylinder;
NOTE:
Exhaust side of No. 7 and 8 cylinder does not have space for installing camshaft pliers [SST: KV10115110
(J38972-1)]. therefore, install lifter stopper [SST: KV10115120 (J38972-2)] according to the following
instructions.
i. Rotate crankshaft to press cam nose to the adjusting part of valve lifter.
ii. Place lifter stopper between camshaft and the edge of valve lifter to retain valve lifter.
CAUTION:
Lifter stopper must be placed as close to camshaft bracket as possible.
Be careful not to damage cam surface, valve lifter and cylinder head with lifter stopper.
iii. Rotate crankshaft slowly 180 degrees clockwise.
CAUTION:
Rotating crankshaft slowly because lifter stopper hits and damages journal portion by rotating
crankshaft quickly.
5. Blow air into the round hole to separate adjusting shim from
valve lifter.
CAUTION:
When blowing, use goggles to protect your eye.
6. Remove adjusting shim with magnetic hand.
7. Use the equation below to calculate adjusting shim thickness for replacement.
PBIC1565E
PBIC1566E
PBIC2359E

CAMSHAFT
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Using micrometer determine thickness of removed shim with
measured at center.
Calculate thickness of new adjusting shim so valve clearance comes within specified values.
Shims are available in 64 sizes from 2.32 mm (0.0913 in) to 2.95 mm (0.1161 in) in steps of 0.01
mm (0.0004 in). Refer to EM-278, "
Available Adjusting Shims" .
Thickness of new adjusting shim can be identified by stamp
marks on the reverse side (inside the cylinder).
8. Install new adjusting shim using suitable tool.
Install with the surface on which the thickness is
stamped facing down.
9. Remove lifter stopper as follows:
a. Except exhaust side of No. 7 and 8 cylinder;
SEM145D
Valve lifter thickness calculation: t = t1 + (C1 – C2 )
t = Valve lifter thickness to be replaced
t
1 = Removed valve lifter thickness
C
1= Measured valve clearance
C
2= Standard valve clearance:
Intake : 0.30 mm (0.012 in)
Exhaust : 0.33 mm (0.013 in)
SEM873E
PBIC1568E

EM-228
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CAMSHAFT
Revision: 2006 January2006 M35/M45
i. Perform same procedure for removal, place camshaft pliers
(SST).
ii. Remove lifter stopper (SST).
iii. Remove camshaft pliers.
b. Exhaust side of No. 7 and 8 cylinder.
Rotate crankshaft slowly 180 degrees clockwise. then remove lifter stopper.
10. Manually turn crankshaft pulley a few turns.
11. Make sure that the valve clearance is within the standard. Refer to EM-222, "
INSPECTION" .
12. Install all removed parts in the reverse order of removal. Refer to EM-219, "
INSTALLATION" .
13. Warm up the engine, and check for unusual noise and vibration.
PBIC1569E

OIL SEAL
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OIL SEALPFP:00100
Removal and Installation of Valve Oil SealNBS004PC
REMOVAL
1. Remove engine assembly from vehicle. Refer to EM-244, "ENGINE ASSEMBLY" .
2. Remove camshaft relating to valve oil seal to be removed. Refer to EM-215, "
CAMSHAFT" .
3. Remove adjusting shims and valve lifters. Refer to EM-215, "
CAMSHAFT" .
Identify installation positions, and store them without mixing them up.
4. Turn crankshaft until the cylinder requiring new oil seals is at TDC. This will prevent valve from dropping
into cylinder.
5. Remove valve collet.
Compress valve spring with valve spring compressor, attach-
ment and adapter (SST). Remove valve collet with magnetic
hand.
CAUTION:
When working, take care not to damage valve lifter holes.
6. Remove valve spring retainer and valve spring (with valve spring seat).
CAUTION:
Do not remove valve spring seat from valve spring.
7. Remove valve oil seal using valve oil seal puller (SST).
INSTALLATION
1. Apply new engine oil on new valve oil seal joint and seal lip.
2. Install valve oil seal.
Install with valve oil seal drift (SST) to match dimension in the
figure.
3. Install in the reverse order of removal.
PBIC2360E
PBIC0072E
PBIC0073E

EM-230
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OIL SEAL
Revision: 2006 January2006 M35/M45
Removal and Installation of Front Oil SealNBS004PD
REMOVAL
1. Remove the following parts:
Front engine undercover (power tool)
Radiator; Refer to CO-43, "RADIATOR" .
Drive belt; Refer to EM-174, "DRIVE BELTS" .
Rear plate cover; Refer to EM-187, "OIL PAN AND OIL STRAINER" .
2. Remove crankshaft pulley as follows:
a. Set ring gear stopper (SST).
b. Loosen crankshaft pulley bolt, and then pull crankshaft pulley
with both hands to remove it.
CAUTION:
Do not remove crankshaft pulley bolt. Keep loosened
crankshaft pulley bolt in place to protect removed crank-
shaft pulley from dropping.
Do not remove balance weight (inner hexagon bolt) at the
front of crankshaft pulley.
3. Remove front oil seal using suitable tool.
CAUTION:
Be careful not to damage front cover and oil pump drive
spacer.
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.
PBIC1656E
SBIA0358E
SBIA0359E

OIL SEAL
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Install front oil seal so that each seal lip is oriented as shown
in the figure.
Using front oil seal drift, press fit until the height of front oil
seal is level with the mounting surface.
Make sure the garter spring is in position and seal lips not
inverted.
CAUTION:
Be careful not to damage front cover and oil pump drive
spacer.
Press fit straight and avoid causing burrs or tilting oil seal.
3. Install in the reverse order of removal.
Removal and Installation of Rear Oil SealNBS004PE
REMOVAL
1. Remove transmission assembly. Refer to AT- 2 7 1 , "TRANSMISSION ASSEMBLY" .
a. Remove drive plate. Refer to EM-249, "
CYLINDER BLOCK" .
b. Remove rear plate. Refer to EM-249, "
CYLINDER BLOCK" .
2. Remove rear oil seal using suitable tool.
CAUTION:
Be careful not to damage crankshaft and oil seal retainer
surface.
INSTALLATION
1. Apply new engine oil to both oil seal lip and dust seal lip of new rear oil seal.
2. Install rear oil seal.
Install rear oil seal so that each seal lip is oriented as shown
in the figure.
SEM715A
Front oil seal drift
Outer diameter : 56 mm (2.20 in)
Inner diameter : 49 mm (1.93 in)
SBIA0359E
SBIA0360E
SEM715A

EM-232
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OIL SEAL
Revision: 2006 January2006 M35/M45
Using rear oil seal drift (commercial service tool), press fit
until the height of front oil seal is level with the mounting sur-
face.
Make sure the garter spring is in position and seal lips not
inverted.
CAUTION:
Be careful not to damage crankshaft and rear oil seal
retainer.
Press fit straight and avoid causing burrs or tilting oil seal.
3. Install in the reverse order of removal.Rear oil seal drift
Outer diameter : 102 mm (4.02 in)
Inner diameter : 86 mm (3.39 in)
SBIA0360E

CYLINDER HEAD
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CYLINDER HEADPFP:11041
On-Vehicle ServiceNBS004PF
CHECKING COMPRESSION PRESSURE
1. Warm up engine thoroughly. Then, stop it.
2. Release fuel pressure. Refer to EC-809, "
FUEL PRESSURE RELEASE" .
a. Remove fuel pump fuse to avoid fuel injection during measure-
ment.
3. Remove engine cover with power tool. Refer to EM-173, "
ENGINE ROOM COVER" .
4. Remove ignition coil and spark plug from each cylinder. Refer to EM-190, "
IGNITION COIL" and EM-191,
"SPARK PLUG (PLATINUM-TIPPED TYPE)" .
5. Connect engine tachometer (not required in use of CONSULT-II).
6. Install compression gauge with adapter (SST or commercial ser-
vice tool) onto spark plug hole.
Use compression gauge adapter (SST) which is required on
No. 7 and 8 cylinders.
Use compression gauge adapter (if no SST is used) whose
picking up end inserted to spark plug hole is smaller than 20
mm (0.79 in) in diameter. Otherwise, it may be caught by cyl-
inder head during removal.
7. With accelerator pedal fully depressed, turn ignition switch to “START” for cranking. When the gauge
pointer stabilizes, read the compression pressure and engine rpm. Perform these steps to check each cyl-
inder.
Compression pressure:
Unit: kPa (kg/cm2 , psi) /rpm
CAUTION:
Always use a fully changed battery to obtain the specified engine speed.
PBIB1482E
PBIC1554E
SBIA0533E
Standard Minimum Deferential limit between cylinders
1,320 (13.5, 191) / 300 1,130 (11.5, 164) / 300 98 (1.0, 14) / 300