Nissan Pathfinder (2011 year). Instruction — part 368
FRONT TIMING CHAIN CASE
EM-55
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19. Loosen two bolts in front of oil pan (upper) in reverse order as
shown.
20. Remove front timing chain case as follows:
a. Loosen bolts with power tool in reverse order as shown.
b. Insert suitable tool into the notch at the top of the front timing
chain case as shown (1).
c. Pry off case by moving tool as shown (2).
• Cut liquid gasket for removal using Tool.
CAUTION:
• Do not use screwdriver or something similar.
• After removal, handle front timing chain case carefully so
it does not twist, bend, or warp under a load.
21. Remove O-rings from rear timing chain case.
CAUTION:
Do not reuse O-rings.
22. If necessary, remove water pump cover and chain tensioner cover from front timing chain case.
• Cut liquid gasket for removal using Tool.
PBIC2907E
PBIC2908E
Tool number
: KV10111100 (J-37228)
SEM156F
PBIC2548E
Tool number
: KV10111100 (J-37228)
2011 Pathfinder
EM-56
< REMOVAL AND INSTALLATION >
[VQ40DE]
FRONT TIMING CHAIN CASE
23. Remove front oil seal from front timing chain case using suitable
tool.
CAUTION:
Be careful not to damage front timing chain case.
24. Remove idler pulley, if necessary. Refer to
EM-15, "Drive Belt Auto Tensioner and Idler Pulley"
25. Use a scraper to remove all traces of old liquid gasket from front
and rear timing chain cases, oil pan (upper), and liquid gasket
mating surfaces.
CAUTION:
Be careful not to allow gasket fragments to enter oil pan.
• Remove old liquid gasket from bolt hole and thread.
26. Use a scraper to remove all traces of old liquid gasket from
water pump cover, chain tensioner cover (if necessary) and
intake valve timing control covers.
INSTALLATION
PBIC2909E
PBIC2910E
PBIC2084E
SEM926E
2011 Pathfinder
FRONT TIMING CHAIN CASE
EM-57
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1. Hammer dowel pins (right and left) into their original positions in
the front timing chain case up to a point close to taper in order to
shorten protrusion length.
NOTE:
Be sure to place the dowel pins in original hole locations in the
front timing chain case.
2. Install new front oil seal on the 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.
• Press-fit oil seal until it becomes flush with front timing chain
case end face using suitable drift [outer diameter: 60 mm (2.36
in)].
• Make sure the garter spring is in position and seal lip is 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 water pump cover and chain tensioner cover to front timing chain case, if removed.
• Apply a continuous bead of liquid gasket using Tool to front
timing chain case as shown.
CAUTION:
• Remove water, oil, dust, dirt, or other foreign material on
all sealing surfaces prior to installation.
• The components must be installed within 5 minutes of
the liquid gasket application. Then allow 30 minutes for
the liquid gasket to set before operating the engine.
• Use Genuine RTV Silicone Sealant or equivalent. Refer
to
GI-14, "Recommended Chemical Products and Seal-
4. Install idler pulley, if removed.
5. Install front timing chain case as follows:
PBIC2615E
SEM715A
PBIC2911E
PBIC2912E
2011 Pathfinder
EM-58
< REMOVAL AND INSTALLATION >
[VQ40DE]
FRONT TIMING CHAIN CASE
a. Apply a continuous bead of liquid gasket using Tool to front tim-
ing chain case back side as shown.
CAUTION:
• Remove water, oil, dust, dirt, or other foreign material on
all sealing surfaces prior to installation.
• The components must be installed within 5 minutes of the
liquid gasket application. Then allow 30 minutes for the
liquid gasket to set before operating the engine.
• Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-14, "Recommended Chemical Products and Sealants"
.
b. Install new O-rings on rear timing chain case.
CAUTION:
Do not reuse O-rings.
c.
Assemble front timing chain case as follows:
i.
Fit lower end of front timing chain case tightly onto top face of oil
pan (upper). From the fitting point, make entire front timing chain
case contact rear timing chain case completely.
ii.
Since front timing chain case is offset for difference of bolt holes,
tighten bolts temporarily while holding front timing chain case
from front and top as shown.
iii. Same as the previous step, insert dowel pin while holding front
timing chain case from front and top completely.
PBIC2913E
PBIC2548E
PBIC1100E
PBIC2915E
2011 Pathfinder
FRONT TIMING CHAIN CASE
EM-59
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d. Tighten bolts to the specified torque in numerical order as
shown.
e. After all bolts are tightened, retighten them to the specified
torque in numerical order as shown.
• There are two type of bolts.
6. Install two bolts in front of oil pan (upper) in numerical order as
shown.
7. 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 using Tool to intake
valve timing control covers as shown.
CAUTION:
• Remove water, oil, dust, dirt, or other foreign material on
all sealing surfaces prior to installation.
• The components must be installed within 5 minutes of the
liquid gasket application. Then allow 30 minutes for the
liquid gasket to set before operating the engine.
• Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-14, "Recommended Chemical Products and Sealants"
.
c. Install new collared O-rings in front timing chain case oil hole
(left and right sides).
CAUTION:
Do not reuse O-rings.
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.
Bolt position Bolt diameter
1 - 5
: 10 mm (0.39 in)
6 – 25
: 6 mm (0.24 in)
Bolt position Tightening specification
1 - 5
: 55.0 N·m (5.6 kg-m, 41 ft-lb)
6 – 25
: 12.7 N·m (1.3 kg-m, 9 ft-lb)
Front oil pan bolt : 22.0 N·m (2.2 kg-m, 16 ft-lb)
PBIC2908E
PBIC2907E
SBIA0492E
PBIC2631E
2011 Pathfinder
EM-60
< REMOVAL AND INSTALLATION >
[VQ40DE]
FRONT TIMING CHAIN CASE
e. Tighten bolts in numerical order as shown.
8. Install crankshaft pulley as follows:
a. 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).
b. Tighten crankshaft pulley bolt in two steps.
c.
Remove Tool to release the ring gear and install the rear cover. Refer to
.
9. Rotate crankshaft pulley in normal direction (clockwise when viewed from front) to confirm it turns
smoothly.
10. Installation of the remaining components is in the reverse order of removal.
INSPECTION AFTER INSTALLATION
• 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-18, "FOR USA AND CANADA : Fluids and Lubricants"
(United
States and Canada) and
MA-20, "FOR MEXICO : Fluids and Lubricants"
(Mexico).
• 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 leak-
age 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 and installation, slack in the guide
may generate a pounding noise during and just after engine start. However, this is normal. Noise will stop
after hydraulic pressure rises.
• Warm up engine thoroughly to make sure there is no leakage of fuel, exhaust gas, or any oils/fluids including
engine oil and engine coolant.
• Bleed air from passages in lines and hoses, such as in cooling system.
• After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to spec-
ified level, if necessary.
• Summary of the inspection items:
*Power steering fluid, brake fluid, etc.
PBIC0918E
Step 1
: 44.1 N·m (4.5 kg-m, 33 ft-lb)
Step 2
: 84
°
- 90
°
degrees clockwise
Tool number
: — (J-48761)
Item
Before starting engine
Engine running
After engine stopped
Engine coolant
Level
Leakage
Level
Engine oil
Level
Leakage
Level
Transmission/
transaxle fluid
A/T and CVT Models
Leakage
Level/Leakage
Leakage
M/T Models
Level/Leakage
Leakage
Level/Leakage
Other oils and fluids*
Level
Leakage
Level
Fuel
Leakage
Leakage
Leakage
Exhaust gas
—
Leakage
—
2011 Pathfinder
TIMING CHAIN
EM-61
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TIMING CHAIN
Exploded View
INFOID:0000000006247020
Removal and Installation
INFOID:0000000006247021
CAUTION:
• After removing timing chains, do not turn the crankshaft and camshaft separately, or the valves will
strike the pistons.
• When installing camshafts, chain tensioners, oil seals, or other sliding parts, lubricate contacting
surfaces with new engine oil.
• Apply new engine oil to bolt threads and seat surfaces when installing camshaft sprockets, camshaft
brackets, and crankshaft pulley.
NOTE:
It is not necessary to remove the rocker covers or intake manifold collector to remove or install the timing
chain(s).
REMOVAL
AWBIA0859GB
1.
Internal chain guide
2.
O-ring
3.
Timing chain tensioner (secondary) (RH)
4.
Camshaft sprocket (EXH)
5.
Timing chain (secondary)
6.
Timing chain (primary)
7.
Camshaft sprocket RH (INT)
8.
Camshaft sprocket LH (INT)
9.
Slack guide
10. Timing chain tensioner (primary)
11. Crankshaft sprocket
12.
Timing chain tensioner (secondary) (LH)
13. O-ring
14. Tension guide
2011 Pathfinder
EM-62
< REMOVAL AND INSTALLATION >
[VQ40DE]
TIMING CHAIN
1. Set No. 1 cylinder to TDC.
• Rotate crankshaft pulley clockwise to align timing mark (A)
(grooved line without color) with timing indicator (B).
2. Remove front timing chain case. Refer to
EM-53, "Removal and Installation"
3. Check timing chain markings to confirm No. 1 cylinder is at TDC of its compression stroke.
• If not, remove Ring Gear Stopper Tool and turn crankshaft clockwise 360
°
(one revolution).
• Re-install Ring Gear Stopper Tool.
• If the original timing chain markings are not legible, use paint or equivalent to mark the timing chains to
the sprockets.
4. If removing the secondary timing chains, loosen camshaft sprocket bolts.
5. Compress the primary timing chain tensioner.
1. Loosen clip of primary timing chain tensioner, and release
plunger stopper (1).
2. Depress plunger into tensioner body by pressing slack
guide (2).
3. Keep slack guide pressed and insert stopper pin through
the tensioner body hole and plunger groove (3) to hold
plunger in.
-
Use stopper pin included with Tool J-50246.
6. Remove internal chain guide.
7. Remove timing chain (primary).
CAUTION:
AWBIA0719ZZ
Tool number
: — (J-48761)
PBIC2919E
PBIC2266E
2011 Pathfinder
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