Nissan Murano. Instruction — part 621
EM-58
< REMOVAL AND INSTALLATION >
TIMING CHAIN
Removal and Installation
INFOID:0000000009717983
REMOVAL
1.
Drain engine oil. Refer to
.
2.
Drain engine coolant from inside engine. Refer to
3.
Remove intake manifold collector. Refer to
4.
Remove rocker covers (bank 1 and bank 2). Refer to
5.
Remove oil pans (lower and upper) and oil strainer. Refer to
.
6.
Remove drive belt, idler pulleys and bracket. Refer to
EM-17, "Removal and Installation"
7.
Remove power steering oil pump with piping connected, and temporarily secure it to aside. Refer to
8.
Separate engine harness removing their brackets from front timing chain case.
9.
Remove valve timing control covers.
• Loosen mounting bolts in the reverse order as shown in the
figure.
CAUTION:
Shaft is internally jointed with camshaft sprocket (INT) cen-
ter hole. When removing, keep it horizontal until it is com-
pletely disconnected.
10. Obtain No. 1 cylinder at TDC of its compression stroke as follows:
a.
Rotate crankshaft pulley clockwise to align timing mark (grooved
line without color) (
) with timing indicator.
19.
Valve timing control cover gasket
(bank 1)
20. Valve timing control cover (bank 1) 21.
Intake valve timing control solenoid valve
(bank 1)
22. Seal ring
23. Water pump cover
24.
Front oil seal
25. Crankshaft pulley
26. Crankshaft pulley bolt
27.
Intake valve timing control solenoid valve
(bank 2)
28. Valve timing control cover (bank 2)
29.
Valve timing control cover gasket
(bank 2)
A.
Comply with the installation procedure
when tightening.Refer to
B.
Comply with the installation proce-
dure when tightening.Refer to
: Always replace after every disassembly.
: N·m (kg-m, ft-lb)
: N·m (kg-m, in-lb)
: Should be lubricated with oil.
: Sealing point
A
: Bank 1
B
: Bank 2
C
: Dowel pin hole
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b.
Check that intake and exhaust cam noses on No. 1 cylinder
(engine front side of bank 1) are located as shown in the figure.
• If not, turn crankshaft one revolution (360 degrees) and align
as shown in the figure.
11. Remove crankshaft pulley as follows:
a.
Fix crankshaft with the pulley holder (commercial service tool)
(A).
b.
Loosen crankshaft pulley bolt and locate bolt seating surface at
10 mm (0.39 in) from its original position.
CAUTION:
Never remove crankshaft pulley bolt as it will be used as a
supporting point for suitable puller.
c.
Place suitable puller tab on holes of crankshaft pulley, and pull
crankshaft pulley through.
CAUTION:
Never put suitable puller tab on crankshaft pulley periphery,
as this will damage internal damper.
12. Remove front timing chain case as follows:
a.
Loosen mounting bolts in the reverse order as shown in the fig-
ure.
: Engine front
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: Crankshaft pulley
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< REMOVAL AND INSTALLATION >
TIMING CHAIN
b.
Insert a suitable tool (A) into the notch at the top of front timing
chain case as shown in the figure.
c.
Pry off case by moving the tool as shown.
• Use the seal cutter [SST: KV10111100 (J-37228)] to cut liquid
gasket for removal.
CAUTION:
• Never use screwdrivers or something similar.
• After removal, handle front timing chain case carefully so
it does not tilt, cant, or warp under a load.
13. Remove water pump cover from front timing chain case.
• Use the seal cutter [SST: KV10111100 (J-37228)] to cut liquid gasket for removal.
14. 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.
15. Remove O-ring (1) from rear timing chain case.
16. Remove timing chain tensioner (primary) as follows:
a.
Remove lower mounting bolt (1).
b.
Loosen upper mounting bolt (2) slowly, and then turn timing
chain tensioner (primary) (3) on the mounting bolt so that
plunger (4) 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).
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A
: Bank 1
B
: Bank 2
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17. Remove internal chain guide, tension guide and slack guide.
NOTE:
Tension guide can be removed after removing timing chain (pri-
mary).
18. Remove timing chain (primary) and crankshaft sprocket.
CAUTION:
After removing timing chain (primary), never turn crankshaft and camshaft separately, or valves
will strike the piston heads.
19. Remove timing chain (secondary) and camshaft sprockets as follows:
a.
Attach a suitable stopper pin (B) to the bank 1 (A) and bank 2
(C) timing chain tensioners (secondary) (1).
NOTE:
• Use approximately 0.5 mm (0.02 in) dia. hard metal pin as a
stopper pin.
• For removal of timing chain tensioner (secondary), refer to
. [Removing camshaft bracket (No. 1)
is required.]
b.
Remove camshaft sprockets (INT and EXH) mounting bolts.
• Secure the hexagonal portion of camshaft using a wrench to
loosen mounting bolts.
CAUTION:
Never loosen 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.
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