2006 INFINITI M35 water pump

EM-68
[VQ35DE]
TIMING CHAIN
Revision: 2006 January2006 M35/M45
b. Insert a suitable tool into the notch at the top of front timing chain
case as shown (1).
c. Pry off case by moving the tool as shown (2).
U s e t h e s e a l c u t t e r [ S S T: K V 1 0 1111 0 0 ( J 3 7 2 2 8 ) ] t o c u t l i q u i d
gasket for removal.
CAUTION:
Do not use a screwdriver or something similar.
After removal, handle front timing chain case carefully so
it does not tilt, cant, or warp under a load.
27. Remove O-rings from rear timing chain case.
28. Remove water pump cover and chain tensioner cover from front timing chain case, if necessary.
U s e t h e s e a l c u t t e r [ S S T: K V 1 0 1111 0 0 ( J 3 7 2 2 8 ) ] t o c u t l i q u i d g asket for removal.
29. Remove front oil seal from front timing chain case using a suit-
able tool.
Use a screwdriver for removal.
CAUTION:
Be careful not to damage front timing chain case.
30. Remove timing chain tensioner (primary) as follows:
a. Remove lower mounting bolt.
b. Loosen upper mounting bolt slowly, and then turn timing chain
tensioner (primary) on the mounting bolt so that plunger is fully
expanded.
NOTE:
Even if plunger is fully expanded, it is not dropped from the body
of timing chain tensioner (primary).
c. Remove upper mounting bolt, and then remove timing chain ten-
sioner (primary).
SEM156F
PBIC2548E
EMQ0032D
PBIC3562E

EM-72
[VQ35DE]
TIMING CHAIN
Revision: 2006 January2006 M35/M45
39. Use a scraper to remove all traces of liquid gasket from water
pump cover, chain tensioner cover and intake valve timing con-
trol covers.
INSPECTION AFTER REMOVAL
Timing Chain
Check for cracks and any excessive wear at link plates and roller
links of timing chain. Replace timing chain as necessary.
INSTALLATION
NOTE:
The below figure shows the relationship between the mating mark on each timing chain and that on the corre-
sponding sprocket, with the components installed.
SEM926E
PBIC0282E
PBIC3493E

EM-74
[VQ35DE]
TIMING CHAIN
Revision: 2006 January2006 M35/M45
Apply liquid gasket on installation position of water pump and cylinder head very completely.
d. Align rear timing chain case and water pump assembly with dowel pins (right and left bank) on cylinder
block and install rear timing chain case.
Make sure O-rings stay in place during installation to cylinder block and cylinder head.
e. Tighten mounting bolts in numerical order as shown in the fig-
ure.
There are two type mounting bolts. Refer to the following for
locating bolts.
f. After all bolts are tightened, retighten them to the specified
torque in numerical order shown in the figure.
If liquid gasket protrudes, wipe it off immediately.Bolt length: Bolt position
20 mm (0.79 in) : 1, 2, 3, 6, 7, 8, 9, 10
16 mm (0.63 in) : Except the above
: 12.7 Nꞏm (1.3 kg-m, 9 ft-lb)
PBIC2680E
SEM735G

TIMING CHAIN
EM-75
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
MA
EM
Revision: 2006 January2006 M35/M45
g. After installing rear 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.
3. Install water pump with new O-rings. Refer to CO-24, "
WATER PUMP" .
4. Make sure that dowel pin hole, dowel pin and crankshaft key are
located as shown in the figure. (No. 1 cylinder at compression
TDC)
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.
CAUTION:
Hole on small dia. side must be used for intake side dowel pin hole. Do not misidentify (ignore big
dia. side).
5. Install timing chains (secondary) and camshaft sprockets as follows:
CAUTION:
Mating marks between timing chain and sprockets slip easily. Confirm all mating mark positions
repeatedly during the installation process.
a. Push plunger of timing chain tensioner (secondary) and keep it
pressed in with a stopper pin.Standard
Rear timing chain case to cylinder block:
–0.24 to 0.14 mm (–0.0094 to 0.0055 in)
SEM943G
Camshaft dowel pin hole (intake side)
: At cylinder head upper face side in each bank.
Camshaft dowel pin (exhaust side)
: At cylinder head upper face side in each bank.
Crankshaft key
: At cylinder head side of right bank.
KBIA1073E
SEM430G

TIMING CHAIN
EM-79
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
MA
EM
Revision: 2006 January2006 M35/M45
e. Install timing chain tensioner (primary).
Remove any dirt and foreign materials completely from the
back and the mounting surfaces of timing chain tensioner (pri-
mary).
f. Pull out stopper pin after installing, and then release plunger.
10. Make sure again that the mating marks on sprockets and timing chain have not slipped out of alignment.
11. Install new O-rings on rear timing chain case.
12. Install new front oil seal on front timing chain case.
Apply new engine oil to both oil seal lip and dust seal lip.
Install it so that each seal lip is oriented as shown in the fig-
ure.
Using a suitable drift [outer diameter: 60 mm (2.36 in)], press-
fit oil seal until it becomes flush with front timing chain case
end face.
Make sure the garter spring is in position and seal lip is not
inverted.
13. Install water pump cover and chain tensioner cover to front timing chain case.
PBIC3569E
PBIC2548E
SEM715A
PBIC0790E

EM-172
[VK45DE]
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
Revision: 2006 January2006 M35/M45
Use the Chart Below to Help You Find the Cause of the Symptom.NBS004OH
1. Locate the area where noise occurs.
2. Confirm the type of noise.
3. Specify the operating condition of engine.
4. Check specified noise source.
If necessary, repair or replace these parts.
A: Closely related B: Related C: Sometimes related —: Not relatedLocation
of noiseTy p e o f
noiseOperating condition of engine
Source of
noiseCheck itemRefer-
ence page Before
warm-
upAfter
warm-
upWhen
start-
ingWhen
idlingWhen
racingWhile
driving
Top of
engine
Rocker
cover
Cylinder
headTicking or
clickingC A — A B — Tappet noise Valve clearanceEM-222
Rattle C A — A B CCamshaft
bearing noiseCamshaft journal oil
clearance
Camshaft runoutEM-217EM-216
Crank-
shaft pul-
ley
Cylinder
block
(Side of
engine)
Oil panSlap or
knock—A—B B—Piston pin
noisePiston to piston pin oil
clearance
Connecting rod bush-
ing oil clearanceEM-266
EM-268
Slap or
rapA——B B APiston slap
noisePiston to cylinder bore
clearance
Piston ring side clear-
ance
Piston ring end gap
Connecting rod bend
and torsionEM-270EM-267
EM-267
EM-268
Knock A B C B B BConnecting
rod bearing
noiseConnecting rod bush-
ing oil clearance
Connecting rod bear-
ing oil clearanceEM-268EM-273
Knock A B — A B CMain bearing
noiseMain bearing oil clear-
ance
Crankshaft runoutEM-274EM-272
Front of
engine
front coverTapping or
tickingAA—BBBTiming chain
and chain
tensioner
noiseTiming chain cracks
and wear
Timing chain tensioner
operationEM-208
EM-203
Front of
engineSqueak-
ing or fizz-
ingAB—B—CDrive belts
(Sticking or
slipping)Drive belts deflection
EM-174CreakingA BAB A BDrive belts
(Slipping)Idler pulley bearing
operation
Squall
CreakAB—BABWater pump
noiseWater pump operationCO-53,
"WATER
PUMP"

EM-174
[VK45DE]
DRIVE BELTS
Revision: 2006 January2006 M35/M45
DRIVE BELTSPFP:02117
ComponentsNBS004OK
Checking Drive BeltsNBS004OL
WAR NING :
Be sure to perform when engine is stopped.
Remove air duct (inlet) when inspecting drive belt for alternator, water pump and A/C compressor.
Remove front engine undercover with power tool when inspecting power steering oil pump belt.
Make sure that indicator (single line notch) of each auto tensioner is within the allowable working range
(between three line notches).
NOTE:
Check auto tensioner indication when engine is cold.
When new drive belt is installed, the range should be “A”.
The indicator notch is located on the moving side of auto tensioner for alternator, water pump and A/C
compressor belt, while it is found on the fixed side for power steering oil pump belt.
Visually check entire belt for wear, damage or cracks.
If the indicator is out of allowable working range or belt is damaged, replace belt.
Te n s i o n A d j u s t m e n tNBS004OM
Belt tensioning is not necessary, as it is automatically adjusted by auto tensioner.
Removal and InstallationNBS004ON
REMOVAL
Alternator, Water Pump and A/C Compressor Belt
1. Remove air duct (inlet). Refer to EM-177, "AIR CLEANER AND AIR DUCT" .
2. With box wrench, and while securely holding the hexagonal part
in pulley center of auto tensioner, move wrench handle in the
direction of arrow (loosening direction of tensioner).
CAUTION:
Avoid placing hand in a location where pinching may
occur if the holding tool accidentally comes off.
Do not loosen the hexagonal part in center of drive belt
auto tensioner pulley (Do not turn it clockwise). If turned
clockwise, the complete drive belt auto tensioner must
be replaced as a unit, including the pulley.
PBIC3822E
PBIC3823E

DRIVE BELTS
EM-175
[VK45DE]
C
D
E
F
G
H
I
J
K
L
MA
EM
Revision: 2006 January2006 M35/M45
3. Under the above condition, insert a metallic bar of approximately 6 mm (0.24 in) in diameter (hexagonal
bar wrench shown as example in the figure) through the holding boss to lock auto tensioner pulley arm.
Leave auto tensioner pulley arm locked until belt is installed again.
4. Remove alternator, water pump and A/C compressor belt.
Power Steering Oil Pump Belt
1. Remove air duct (inlet). Refer to EM-177, "AIR CLEANER AND AIR DUCT" .
2. Remove front engine undercover with power tool.
3. Remove alternator, water pump and A/C compressor belt. Refer to EM-174, "
Alternator, Water Pump and
A/C Compressor Belt" .
4. While securely holding the hexagonal protrusion part of auto
tensioner pulley with box wrench, move wrench handle in the
direction of arrow (loosening direction of tensioner).
CAUTION:
Avoid placing hand in a location where pinching may occur
if holding tool accidentally comes off.
5. Under the above condition, insert a metallic bar of approximately
6 mm (0.24 in) in diameter (hexagonal bar wrench shown as
example in the figure) through the holding boss to lock auto ten-
sioner pulley arm.
Leave auto tensioner pulley arm locked until belt is installed
again.
6. Remove power steering oil pump belt.
INSTALLATION
Note the following, and install in the reverse order of removal.
CAUTION:
Make sure belt is securely installed around all pulleys.
Make sure belt is correctly engaged with the pulley groove.
Check for engine oil and engine coolant are not adhered belt and pulley groove.
Make sure that belt tension is within the allowable working range, using indicator notch on auto
tensioner. Refer to EM-174, "
Checking Drive Belts" .
PBIC1543E