Nissan Pathfinder. Manual — part 557
TIMING CHAIN
EM-67
< REMOVAL AND INSTALLATION >
C
D
E
F
G
H
I
J
K
L
M
A
EM
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5. Pull stopper pins (B) out from timing chain tensioners (second-
ary) (1).
6. Install the crankshaft sprocket on the crankshaft.
• Make sure the mating marks on the crankshaft sprocket face
the front of the engine.
7. Install the timing chain (primary).
• Install timing chain (primary) so the mating mark (punched) (B)
on camshaft sprocket (C) is aligned with the pink link (A) on
the timing chain, while the mating mark (notched) (E) on the
crankshaft sprocket (D) is aligned with the orange one (F) on
the timing chain, as shown.
• When it is difficult to align mating marks of the timing chain
(primary) with each sprocket, gradually turn the camshaft
using a wrench on the hexagonal portion to align it with the
mating marks.
• During alignment, be careful to prevent dislocation of mating
mark alignments of the secondary timing chains.
(A)
: Bank 1
(C)
: Bank 2
JPBIA1727ZZ
SEM929E
(G)
: Water pump
WBIA0721E
EM-68
< REMOVAL AND INSTALLATION >
TIMING CHAIN
8. Install the internal chain guide (1) and slack guide (2).
CAUTION:
Do not over tighten slack guide mounting bolt (2). It is nor-
mal for a gap (A) to exist under the bolt seat when bolt is
tightened to specification.
9. Install the timing chain tensioner (primary) with the following procedure:
a. Pull plunger stopper tab (A) up (or turn lever downward) so as to
remove plunger stopper tab from the ratchet of plunger (D).
NOTE:
Plunger stopper tab and lever (C) are synchronized.
b. Push plunger into the inside of tensioner body.
c.
Hold plunger in the fully compressed position by engaging
plunger stopper tab with the tip of ratchet.
d. To secure lever, insert stopper pin (E) through hole of lever into
tensioner body hole (B).
• The lever parts and the tab are synchronized. Therefore, the
plunger will be secured under this condition.
NOTE:
Illustration shows the example of 1.2 mm (0.047 in) diameter thin screwdriver being used as the stopper
pin.
(3)
: Tension guide
JPBIA1104ZZ
(1)
: Slack guide
(3)
: Cylinder block
JPBIA0117ZZ
JPBIA0118ZZ
TIMING CHAIN
EM-69
< REMOVAL AND INSTALLATION >
C
D
E
F
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EM
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e. Install timing chain tensioner (primary) (1).
• Remove any dirt and foreign materials completely from the
back and the mount surfaces of timing chain tensioner (pri-
mary).
f.
Pull out stopper pin (A) after installing, and then release plunger.
10. Reconfirm that the matching marks on the sprockets and the timing chain have not slipped out of align-
ment.
11. Install the front timing chain case. Refer to
EM-54, "Removal and Installation"
.
12. Install the spark plugs. Refer to
EM-16, "Removal and Installation"
.
13. Install the intake manifold collector. Refer to
EM-26, "Removal and Installation"
.
JPBIA0119ZZ
EM-70
< REMOVAL AND INSTALLATION >
REAR TIMING CHAIN CASE
REAR TIMING CHAIN CASE
Exploded View
INFOID:0000000009177926
Removal and Installation
INFOID:0000000009177927
CAUTION:
• After removing timing chain, do not turn the crankshaft and camshaft separately, or the valves will
strike the pistons.
• Before removing the upper oil pan, remove the crankshaft position sensor (POS).
• Be careful not to damage sensor edges.
REMOVAL
1. Remove the engine assembly. Refer to
EM-102, "2WD : Removal and Installation"
(2WD) or
"4WD : Removal and Installation"
2. Remove upper oil pan. Refer to
EM-37, "Removal and Installation (Upper Oil Pan)"
3. Remove the front timing chain case. Refer to
4. Remove the timing chains (primary) and (secondary). Refer to
EM-62, "Removal and Installation"
.
5. Remove the rear timing chain case.
CAUTION:
• Do not remove the plate metal cover for the oil passage.
• After removing the chain case, do not apply any load to
the case that might bend it.
1.
Rear timing chain case
2.
O-ring
3.
Cylinder block
AWBIA1245GB
KBIA1307E
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