Nissan Pathfinder (2010 year). Manual — part 382
EM-184
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TIMING CHAIN
Check for cracks and any excessive wear at link plates. Replace
chain if necessary.
• In the same way as for the LH bank, inspect the timing chain and
associated parts on the RH bank.
INSTALLATION
NOTE:
• The above figure shows the relationship between the mating mark on each timing chain and that of the cor-
responding sprocket, with the components installed.
• To install the timing chain and associated parts, start with those on the RH bank. The procedure for installing
parts on the LH bank is omitted because it is the same as that for installation on the RH bank.
PBIC0282E
1.
Camshaft sprocket RH bank INT
(VTC)
2.
Camshaft sprocket RH bank EXH
3.
Camshaft dowel pin RH bank
4.
Timing chain RH bank
5.
Timing chain slack guide RH bank
6.
Chain tensioner (RH)
7.
Crankshaft sprockets
8.
Crankshaft key
9.
Timing chain tension guide LH bank
10. Timing chain LH bank
11. Camshaft dowel pin LH bank
12. Camshaft sprocket LH bank EXH
13. Camshaft sprocket LH bank INT
(VTC)
14. Chain tensioner (LH)
15. Timing chain tension guide RH bank
16. Timing chain slack guide LH bank
A.
LH bank
B.
RH bank
C.
Alignment mark (Link color: copper) D.
Alignment mark (Link color: copper) E.
Alignment mark (Identification mark)
F.
Alignment mark for LH bank (Notch) G.
Alignment mark for LH bank (Link
color: zinc yellow)
H.
Alignment mark for RH bank (Link
color: zinc yellow)
J.
Alignment mark (Link color: copper) K.
Alignment mark (Identification mark) L.
Alignment mark (Identification mark)
M
Alignment mark (Link color: copper) N.
Alignment mark (Identification mark)
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TIMING CHAIN
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1. Make sure the crankshaft key and RH bank camshaft dowel pin
and LH bank camshaft dowel pin are facing in the direction
shown.
2. Install the camshaft sprockets.
• Install the camshaft sprocket INT (VTC) (A) and camshaft
sprockets EXH (B) by selectively using the groove of the
dowel pin according to the bank. (Common part used for both
exhaust banks.)
NOTE:
Use the groove marked (R) for RH bank and (L) for LH bank.
• Lock the hexagonal part of the camshaft in the same way as
for removal, and tighten the bolts.
3. Install the crankshaft sprockets for both banks.
• Install LH bank crankshaft sprocket (B) and RH bank crank-
shaft sprocket (C) so that their flange side (A) (the larger diam-
eter side without teeth) faces in the direction shown.
NOTE:
The same parts are used but facing directions are different.
4. Install the timing chains and associated parts.
• Align the alignment mark on each sprocket and the timing chain for installation.
CAUTION:
• Before installing chain tensioner, it is possible to change the position of alignment mark on
timing chain and each sprocket. After the alignment marks are aligned, keep them aligned by
holding them by hand.
• Install the slack guides and tension guides onto the correct side by checking the identification mark on
the surface.
• Install the chain tensioner with the plunger locked in with the stopper pin.
CAUTION:
• Before and after the installation of the chain tensioner, make sure that the alignment mark on
the timing chain is not out of alignment.
• After installing the chain tensioner, remove the stopper pin to release the chain tensioner.
Make sure the chain tensioner is released.
• To avoid chain-link skipping of the timing chain, do not move crankshaft or camshafts until the
front cover is installed.
5. In the same way as for the RH bank, install the timing chain and associated parts on the LH bank.
6. Install the oil pump.
SBIA0356E
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EM-186
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TIMING CHAIN
7. Install the oil pump drive spacer as follows:
• Install so that the front mark on the front edge of the oil pump
drive spacer faces the front of the engine.
• Insert the oil pump drive spacer according to the directions of
the crankshaft key and the two flat surfaces of the oil pump
inner rotor.
• If the positional relationship does not allow the insertion, rotate
the oil pump inner rotor to allow the oil pump drive spacer to
be inserted.
8. Install the front oil seal using suitable tool.
CAUTION:
Do not scratch or make burrs on the circumference of the
oil seal.
9. Install the chain tensioner cover.
• Apply liquid gasket as shown.
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-14, "Recommended Chemical Products and Sealants"
.
10. Install the front cover as follows:
a. Install a new O-ring on the cylinder block.
KBIA2490E
PBIC0059E
KBIA2547E
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TIMING CHAIN
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b. Apply liquid gasket as shown.
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-14, "Recommended Chemical Products and Sealants"
.
c. Check again that the timing alignment marks on the timing chain
and on each sprocket are aligned. Then install the front cover.
d. Install the bolts in the numerical order shown.
e. After tightening, re-tighten to the specified torque.
CAUTION:
Be sure to wipe off any excessive liquid gasket leaking onto
surface mating with oil pan.
11. Install the Intake valve timing control solenoid valve cover (RH)
(A) and Intake valve timing control solenoid valve cover (LH) (B)
as follows:
• Cross mark that can not be seen after assembly (C)
a. Apply liquid gasket (D) as shown.
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-14, "Recommended Chemical Products and Sealants"
.
CAUTION:
The start and end of the application of the liquid gasket
should be crossed at a position (C) that cannot be seen
after attaching the intake valve timing control solenoid valve cover.
b. Install the bolts and tighten them to specification in the numeri-
cal order shown.
• A: Intake valve timing control solenoid valve cover (RH)
• B: Intake valve timing control solenoid valve cover (LH)
12. Install the crankshaft pulley.
• Install the key of the crankshaft.
• Insert the pulley by lightly tapping it.
CAUTION:
Do not tap pulley on the side surface where the belt is installed (outer circumference).
13. Tighten the crankshaft pulley bolt.
• Lock the crankshaft using suitable tool, then tighten the bolt.
• Perform the following steps for angular tightening:
KBIA2517E
M6
×
50 mm (1.97 in)
: No. 1, 20, 25, 26, 27
M6
×
80 mm (3.15 in)
: No. 4, 5, 7
M6
×
20 mm (0.79 in)
: Except the above
KBIA2478E
D : 2.6 - 3.6 mm (0.102 - 0.142 in) dia.
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EM-188
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TIMING CHAIN
a. Apply engine oil onto the threaded parts of the bolt and seating area.
b. Select the one most visible notch of the four on the bolt flange.
Corresponding to the selected notch, put a alignment mark
(such as paint) on the crankshaft pulley.
14. Rotate the crankshaft pulley in normal direction (clockwise when
viewed from engine front) to check for parts interference.
15. Installation of the remaining components is in the reverse order
of removal.
INSPECTION AFTER INSTALLATION
• Before starting the engine, check oil/fluid levels including engine coolant and engine oil. If the levels are
lower than required quantity, fill to the specified level. Refer to
.
• Use procedure below to check for fuel leakage.
• Turn ignition switch ON (with engine stopped). With fuel pressure applied to the fuel piping, check for fuel
leakage at the 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 oil/fluids including
engine oil and engine coolant.
• Bleed air from passages in lines and hoses, such as in cooling system.
• After cooling down the engine, again check oil/fluid levels including engine oil and engine coolant. Refill to
specified level if necessary.
• Summary of the inspection items:
* Transmission/transaxle/CVT fluid, power steering fluid, brake fluid, etc.
Crankshaft pulley bolt torque
Step 1
: 93.1 N·m (9.5 kg-m, 69 ft-lb)
Step 2
: additional 90
°
(angle tightening)
KBIA2519E
Item
Before starting engine
Engine running
After engine stopped
Engine coolant
Level
Leakage
Level
Engine oil
Level
Leakage
Level
Other oils and fluids*
Level
Leakage
Level
Fuel
Leakage
Leakage
Leakage
Exhaust gas
—
Leakage
—
2010 Pathfinder
CAMSHAFT
EM-189
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CAMSHAFT
Exploded View
INFOID:0000000005260522
Removal and Installation
INFOID:0000000005260523
NOTE:
Do not remove the engine assembly to perform this procedure.
REMOVAL
1. Remove the engine under cover. Refer to
EXT-14, "Removal and Installation"
.
2. Remove the RH bank and LH bank rocker covers. Refer to
EM-174, "Removal and Installation"
3. Remove the spark plugs. Refer to
EM-152, "Removal and Installation"
.
4. Remove the drive belt. Refer to
EM-149, "Removal and Installation"
.
AWBIA0819GB
1.
Cylinder head RH bank
2.
Camshaft bracket (No. 2, 3, 4, 5)
3.
Valve lifter
4.
Camshaft bracket (No. 1)
5.
Seal washer
6.
Camshaft RH bank EXH
7.
Camshaft RH bank INT
8.
Camshaft LH bank INT
9.
Camshaft LH bank EXH
10. Camshaft sprocket RH bank EXH
11. Camshaft sprocket RH bank INT
(VTC)
12. Camshaft sprocket LH bank INT
(VTC)
13. Camshaft sprocket LH bank EXH
14. Camshaft position sensor (PHASE)
15. O-ring
16. Cylinder head LH bank
A.
Refer to
2010 Pathfinder
EM-190
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CAMSHAFT
5. Obtain compression TDC of No. 1 cylinder as follows:
a. Turn the crankshaft pulley clockwise to align the TDC identifica-
tion notch (without paint mark) with the timing indicator on the
front cover.
b. At this time, make sure both intake and exhaust cam lobes of
No. 1 cylinder (top front on LH bank) point outside.
• If they do not point outside, turn crankshaft pulley once more.
6. Disconnect and remove the camshaft position sensor. Refer to
.
7. Disconnect and remove the intake valve timing control position sensor (RH and LH). Refer to
8. Disconnect and remove the intake valve timing control solenoid valve (RH and LH). Refer to
9. Remove the intake valve timing control solenoid valve cover
(RH) (A) and intake valve timing control solenoid valve cover
(LH) (B) as follows:
a. Loosen and remove the bolts in reverse order as shown.
b. Cut the liquid gasket and remove the covers using Tool.
CAUTION:
Do not damage mating surfaces.
10. Paint alignment marks on the RH bank (A) timing chain links (C)
and LH bank (B) timing chain links (D) and align with the cam-
shaft sprocket alignment marks (E) and (F).
11. Remove the chain tensioner (LH) using the following steps.
WARNING:
Plunger, spring, and spring seat pop out when squeezing return-proof clip without holding
plunger head. It may cause serious injuries. Always hold plunger head when removing.
KBIA2476E
KBIA0400J
Tool number
: KV10111100 (J-37228)
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CAMSHAFT
EM-191
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a. Squeeze return-proof clip ends using suitable tool and push the
plunger into the chain tensioner body.
b. Secure plunger using stopper pin.
• Stopper pin is made from hard wire approximately 1 mm (0.04
in) in diameter.
c. Remove the bolts and the timing chain tensioner.
NOTE:
• Stop plunger in the fully extended position using return-proof clip
(1) if stopper pin is removed.
• Push the plunger (2) into the chain tensioner body while squeezing
the return-proof clip (1). Secure it using stopper pin (3).
12. Remove the chain tensioner cover from the front cover using
Tool.
CAUTION:
Do not damage mating surfaces.
13. Remove the chain tensioner (RH) using the following steps.
WARNING:
Plunger, spring, and spring seat pop out when squeezing return-proof clip without holding
plunger head. It may cause serious injuries. Always hold plunger head when removing.
a. Squeeze return-proof clip ends using suitable tool and push the
plunger into the chain tensioner body.
b. Secure plunger using stopper pin.
• Stopper pin is made from hard wire approximately 1 mm (0.04
in) in diameter.
KBIA2479E
KBIA2483E
Tool number
: KV10111100 (J-37228)
KBIA2521E
KBIA2479E
2010 Pathfinder
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