Nissan Quest E52. Manual - part 580

TIMING CHAIN

EM-69

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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.

7.

Remove water pump cover from front timing chain case. 
• Use the seal cutter [SST: KV10111100 (J-37228)] to cut liquid gasket for removal. 

8.

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.

9.

Remove O-ring (1) from rear timing chain case.

10. Remove timing chain tensioner (primary) as follows:

a.

Remove lower mounting bolt (A).

b.

Loosen upper mounting bolt (B) slowly, and then turn timing
chain tensioner (primary) (1) on the mounting bolt so that
plunger (C) 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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TIMING CHAIN

11. Remove internal chain guide, tension guide and slack guide.

NOTE:
Tension guide can be removed after removing timing chain (pri-
mary).

CAUTION:

After removing timing chain (primary), never turn crank-
shaft and camshaft separately, or valves will strike the pis-
ton heads.

12. Remove timing chain (primary) and crankshaft sprocket.
13. 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

EM-84, "Exploded View"

. [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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TIMING CHAIN

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• Insert 0.5 mm (0.020 in) thick metal or resin plate between tim-

ing chain and timing chain tensioner plunger (guide) (E).
Remove timing chain (secondary) (2) together with camshaft
sprockets with timing chain loose from guide groove.

CAUTION:

Be careful of plunger coming-off when removing timing chain (secondary). This is because
plunger of timing chain tensioner (secondary) moves during operation, leading to coming-off of
fixed stopper pin. 
NOTE:
• Camshaft sprocket (INT) is two-for-one structure of sprockets for timing chain (primary) and for timing

chain (secondary).

• Figure is shown as an example of bank 1.

• When handling camshaft sprocket (INT), be careful of the fol-

lowing caution:

CAUTION:

• Handle carefully to avoid any shock to camshaft

sprocket.

• Never disassemble. [Never loosen bolts (A) as shown in

the figure].

14. Remove water pump. Refer to 

CO-19, "Removal and Installation"

.

15. Remove oil pump. Refer to 

LU-14, "Removal and Installation"

.

16. Remove rear timing chain case as follows:

a.

Loosen and remove mounting bolts in the reverse order as
shown in the figure.

b.

Cut liquid gasket using the seal cutter [SST: KV10111100 (J-
37228)] and remove rear timing chain case.

CAUTION:

1

: Timing chain tensioner (secondary)

A

: Bank 1

B

:  View  B

C

: Stopper pin

D

:  Plate

F

: Timing chain tensioner (body)

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TIMING CHAIN

• Never remove plate metal cover (1) of oil passage.
• After removal, handle rear timing chain case carefully so

it does not tilt, cant, or warp under a load.

17. Remove oil temperature sensor from timing chain case (rear) if necessary.
18. Remove O-rings (1) from cylinder block.

19. Remove timing chain tensioners (secondary) from cylinder head as follows, if necessary.
a.

Remove camshaft brackets (No. 1). Refer to 

EM-84, "Exploded View"

.

b.

Remove timing chain tensioners (secondary) (1) with a stopper
pin (B) attached.

20. Use a scraper to remove all traces of old liquid gasket from front

timing chain case, and opposite mating surfaces.

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: Engine front

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A

:  Bank  1

B

:  Bank  2

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