2006 INFINITI FX35 TENSIONER

FRONT TIMING CHAIN CASE EM-57
[VQ35DE]
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Revision: 2006 December 2006 FX35/FX45
b. Insert suitable tool into the notch at the top of front timing chain case as shown (1).
c. Pry off case by moving a 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 screwdrivers or something similar.

After removal, handle front timing chain case carefully
so it does not tilt, cant, or warp under a load.
23. Remove O-rings from rear timing chain case.
24. Remove oil pan gasket (front). Refer to EM-30, "
OIL PAN AND OIL STRAINER" .
25. 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 a s k e t f o r r e m o v a l .
26. Remove front oil seal from front timing chain case using a suit- able tool.

Use a screwdriver for removal.
CAUTION:
Exercise care not to damage front timing chain case.
27. Remove timing chain and related parts. Refer to EM-64, "
TIMING CHAIN" .
28. Use a scraper to remove all traces of old liquid gasket from front and rear timing chain cases and oil pan (upper), and liquid gas-
ket mating surfaces.
CAUTION:
Be careful not to allow gasket fragments to enter oil pan.
SEM156F
PBIC2548E
EMQ0032D
SEM737G

EM-58
[VQ35DE]
FRONT TIMING CHAIN CASE
Revision: 2006 December 2006 FX35/FX45

Remove old liquid gasket from bolt hole and thread.
29. Use a scraper to remove all traces of liquid gasket from water pump cover, chain tensioner cover and intake valve timing con-
trol covers.
INSTALLATION
1. Install timing chain and related parts. Refer to EM-64, "TIMING CHAIN" .
2. Hammer dowel pins (right and left) into front timing chain case up to a point close to taper in order to shorten protrusion length.
3. Install front oil seal on front timing chain case.

Apply new engine oil to the oil seal lip and dust seal lip.

Install it so that each seal lip is oriented as shown in the fig-
ure.
PBIC2084E
SEM926E
PBIC1101E
SEM715A

FRONT TIMING CHAIN CASE EM-59
[VQ35DE]
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Revision: 2006 December 2006 FX35/FX45

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.
4. Install water pump cover and chain tensioner cover to front timing chain case.

Apply a continuous bead of liquid gasket with the tube presser
[SST: WS39930000 ( — )] to front timing chain case as
shown in the figure.
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-48, "
RECOMMENDED CHEMICAL PRODUCTS AND
SEALANTS".
5. Install front timing chain case as follows:
a. Apply a continuous bead of liquid gasket with the tube presser [SST: WS39930000 ( — )] to front timing chain case back
side as shown in the figure.
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-48, "
RECOMMENDED CHEMICAL PRODUCTS AND
SEALANTS" .
PBIC0790E
SEM744GA
PBIC1133E

EM-62
[VQ35DE]
FRONT TIMING CHAIN CASE
Revision: 2006 December 2006 FX35/FX45
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 the holes to install intake valve timing control covers.
e. Tighten mounting bolts in numerical order as shown in the fig- ure.
9. 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).
c. Tighten crankshaft pulley bolt.
d. Turn crankshaft pulley bolt 90 degree clockwise (angle tighten- ing).
CAUTION:
Check the tightening angle by using the angle wrench
[SST]. Avoid judgement by visual inspection without SST.

Check tightening angle indicated on the angle wrench indica-
tor plate.
10. Rotate crankshaft pulley in normal direction (clockwise when viewed from front) to confirm it turns smoothly.
11. For the following operations, perform steps in the reverse order of removal. NOTE:
If hydraulic pressure inside chain tensioner drops after removal/installation, slack in the guide may gener-
ate a pounding noise during and just after engine start. However, this is normal. Noise will stop after
hydraulic pressure rises.
PBIC2631E
PBIC0918E
: 44.1 N·m (4.5 kg-m, 33 ft-lb)
PBIC3821E

FRONT TIMING CHAIN CASE EM-63
[VQ35DE]
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Revision: 2006 December 2006 FX35/FX45
INSPECTION AFTER INSTALLATION
Inspection for Leaks
The followings are procedures for checking fluids leak, lubricates 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 GI-48, "
RECOMMENDED CHEMICAL PRODUCTS AND
SEALANTS" .

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 chain tensioner drops after removal/installation, slack in guide may generate a
pounding noise during and just after the 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, 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. 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

TIMING CHAIN EM-65
[VQ35DE]
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Revision: 2006 December 2006 FX35/FX45
Removal and InstallationNBS003GP
NOTE:

This section describes procedures for removing/installing front timing chain case and timing chain related
parts, and rear timing chain case, when oil pan (upper) needs to be removed/installed for engine overhaul,
etc.

To remove/install front timing chain case, timing chain, and its related parts without removing oil pan
(upper), refer to EM-54, "
FRONT TIMING CHAIN CASE" .
REMOVAL
1. Remove front tire.
2. Disconnect negative battery terminal.
3. Remove engine cover with power tool. Refer to EM-19, "
INTAKE MANIFOLD COLLECTOR" .
4. Remove air cleaner case assembly. Refer to EM-17, "
AIR CLEANER AND AIR DUCT" .
5. Remove front and rear engine undercover with power tool.
6. Release the fuel pressure. Refer to EC-86, "
FUEL PRESSURE RELEASE" .
7. Drain engine coolant from radiator. Refer to CO-11, "
Changing Engine Coolant" .
CAUTION:

Perform this step when the engine is cold.

Do not spill engine coolant on drive belts.
8. Drain engine oil. Refer to LU-9, "
Changing Engine Oil" .
CAUTION:

Perform this step when the engine is cold.

Do not spill engine oil on drive belts.
9. Remove engine harnesses.
10. Remove intake manifold collectors (upper and lower). Refer to EM-19, "
INTAKE MANIFOLD COLLEC-
TOR" .
11. Remove radiator cooling fan assembly. Refer to CO-21, "
COOLING FAN" .
12. Remove drive belts. Refer to EM-15, "
DRIVE BELTS" .
13. Remove A/C compressor from bracket with piping connected, and temporarily secure it aside. Refer to ATC-139, "
Components" .
14. Remove power steering oil pump from bracket with piping connected, and temporarily secure it aside. Refer to PS-29, "
POWER STEERING OIL PUMP" .
15. Remove power steering oil pump bracket. Refer to PS-29, "
POWER STEERING OIL PUMP" .
16. Remove alternator. Refer to SC-20, "
CHARGING SYSTEM" .
17. Remove water bypass hose, water hose clamp and idler pulley bracket from front timing chain case.
18. Remove intake valve timing control covers.
1. Timing chain tensioner (secondary) 2. Internal chain guide 3. Timing chain tensioner (secondary)
4. Camshaft sprocket (EXH) 5. Timing chain (secondary) 6. Timing chain (primary)
7. Camshaft sprocket (INT) 8. Camshaft sprocket (EXH) 9. Timing chain (secondary)
10. Camshaft sprocket (INT) 11. Slack guide 12. Crankshaft sprocket
13. Timing chain tensioner (primary) 14. Intake valve timing control cover 15. Collared O-ring
16. O-ring 17. Chain tensioner cover 18. Intake valve timing control cover
19. Water hose clamp 20. Idler pulley bracket 21. Idler pulley
22. Crankshaft pulley 23. Front oil seal 24. Idler pulley
25. A/C compressor bracket 26. Water pump cover 27. Bracket
28. Front timing chain case 29. Bracket 30. Rear timing chain case
31. O-ring 32. Tension guide 33. Water drain plug (front side)

EM-68
[VQ35DE]
TIMING CHAIN
Revision: 2006 December 2006 FX35/FX45
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.
25. Remove O-rings from rear timing chain case.
26. 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 a s k e t f o r r e m o v a l .
27. 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.
28. 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

TIMING CHAIN EM-69
[VQ35DE]
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Revision: 2006 December 2006 FX35/FX45
29. Remove internal chain guide, tension guide and slack guide. NOTE:
Tension guide can be removed after removing timing chain (pri-
mary).
30. Remove timing chain (primary) and crankshaft sprocket. CAUTION:
After removing timing chain (primary), do not turn crankshaft and camshaft separately, or valves
will strike the piston heads.
31. Remove timing chain (secondary) and camshaft sprockets as follows:
a. Attach suitable stopper pin to the right and left timing chain ten- sioners (secondary).
NOTE:

Use approximately 0.5 mm (0.020 in) dia. hard metal pin as a
stopper pin.

For removal of timing chain tensioner (secondary), refer to
EM-83, "
CAMSHAFT" . [Removing camshaft bracket (No. 1)
is required.]
b. Remove camshaft sprocket (INT and EXH) mounting bolts.

Secure the hexagonal portion of camshaft using a wrench to
loosen mounting bolts.
CAUTION:
Do not loosen the mounting bolts with securing anything
other than the camshaft hexagonal portion or with ten-
sioning the timing chain.
c. Remove timing chain (secondary) together with camshaft sprockets.

Turn camshaft slightly to secure slackness of timing chain on timing chain tensioner (secondary) side.
PBIC2266E
PBIC2047E
KBIA1698J