Nissan Qashqai (2007-2010). Manual — part 54

EM-164

< ON-VEHICLE REPAIR >

[MR20DE]

TIMING CHAIN

a.

Fix crankshaft pulley (1) with a pulley holder (A) (commercial
service tool), loosen crankshaft pulley bolt, and locate bolt seat-
ing surface at 10 mm (0.39 in) from its original position.

CAUTION:

Never remove the crankshaft pulley bolt as they will be
used as a supporting point for the pulley puller [SST:
KV11103000].

b.

Attach a pulley puller (A) [SST: KV11103000] in the M6 thread
hole on crankshaft pulley (1), and remove crankshaft pulley.

7.

Remove rear torque rod. Refer to

EM-194, "M/T : Exploded View"

(M/T models) or

EM-198, "CVT :

Exploded View"

(CVT models).

8.

Support the bottom surface of engine using a transmission jack, and then remove the engine mounting
stay and the engine mounting insulator (RH). Refer to

EM-194, "M/T : Exploded View"

(M/T models) or

EM-198, "CVT : Exploded View"

(CVT models).

9.

Remove oil pan (lower). Refer to

EM-152, "Exploded View"

.

NOTE:
If crankshaft sprocket and balancer unit component are not removed, this step is unnecessary.

10. Remove intake valve timing control solenoid valve.
11. Remove drive belt auto-tensioner.

12. Remove front cover with the following procedure:

a.

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

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TIMING CHAIN

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b.

Cut liquid gasket by prying the position (

) shown in the figure,

and then remove the front cover.

CAUTION:

• Be careful not to damage the mating surface.
• A more adhesive liquid gasket is applied compared to pre-

vious types when shipped, so it should not be forced off
the position not specified.

13. Remove front oil seal from front cover.

• Lift up front oil seal using a screwdriver.

CAUTION:

Be careful not to damage front cover.

14. Remove timing chain tensioner with the following procedure:

a.

Push in timing chain tensioner plunger.

b.

Insert a stopper pin (A) into the body hole, and then fix it with the
plunger pushed in.
NOTE:
Use approximately 1.5 mm (0.059 in) diameter. hard metal pin
as a stopper pin.

c.

Remove timing chain tensioner (1).

15. Remove timing chain slack guide (2), timing chain tension guide

(3) and timing chain (1).

CAUTION:

Never rotate each crankshaft and camshaft individually
while timing chain is removed. It causes interference
between valve and piston.

16. Remove crankshaft sprocket and balancer unit drive component with the following procedure:

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EM-166

< ON-VEHICLE REPAIR >

[MR20DE]

TIMING CHAIN

a.

Fully lift up lever (A), and push the timing chain slack guide (B)
into the inside of balancer unit timing chain tensioner (1).
• The slack guide is released by fully lifting the lever up. As the

result, the slack guide can be moved.

b.

Matching the hole on lever with the hole on tensioner body,
insert a stopper pin (C) to secure the slack guide.
NOTE:
Use approximately 1.0 mm (0.04 in) diameter. hard metal pin as
a stopper pin.

c.

Remove balancer unit timing chain tensioner.
• When the holes on lever and tensioner body cannot be

aligned, align these holes by slightly moving the slack guide.

d.

Hold the WAF part of balancer shaft [WAF:19.0 mm (0.75 in)]
(A), and then loosen the balancer unit sprocket bolt.

CAUTION:

• Secure the balancer unit shaft with the WAF part.
• Never loosen the balancer unit sprocket bolt by tightening

the balancer unit drive chain.

e.

Remove crankshaft sprocket, balancer unit sprocket and bal-
ancer unit timing chain as a set.

17. Remove timing chain tension guide (front cover side) from front cover, if necessary.

INSTALLATION

NOTE:

1

: Oil pan (upper)

: Engine front

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TIMING CHAIN

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The figure shows the relationship between the matching mark on
each timing chain and that on the corresponding sprocket, with the
components installed.

1.

Make sure that crankshaft key points straight up.

*: There are two outer grooves in camshaft sprocket (INT). The wider one is a matching mark.

2.

If the timing chain tension guide (front cover side) is removed, install it to the front cover.

CAUTION:

Check the joint condition by sound or feeling.

3.

Install crankshaft sprocket (2), balancer unit sprocket (3) and
balancer unit timing chain (1).

• Install it by aligning matching marks on each sprocket and bal-

ancer unit timing chain.

• If these matching marks are not aligned, rotate the balancer

shaft slightly to correct the position.

CAUTION:

Check matching mark position of each sprocket after
installing the balancer unit timing chain.

1

: Timing chain

2

: Camshaft sprocket (EXH)

3

: Timing chain slack guide

4

: Timing chain tensioner

5

: Balancer unit sprocket

6

: Balancer unit drive chain

7

: Balancer unit timing chain tensioner

8

: Crankshaft sprocket

9

: Timing chain tension guide

10

: Camshaft sprocket (INT)

A

: Matching mark (dark blue link)

B

: Matching mark (stamping)

C

: Crankshaft key position (straight up)

D

: Matching mark (stamping)

E

: Matching mark (orange link)

F

: Matching mark (outer groove*)

A

: Matching mark (stamping)

B

: Matching mark (orange link)

C

: Matching mark (dark blue link)

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