Nissan March K13. Manual - part 278

EM-46

< REMOVAL AND INSTALLATION >

[HR12DE]

TIMING CHAIN

10. Remove chain tensioner (1) with the following procedure.

a.

Fully push down the chain tensioner lever (A), and then push the
plunger (C) into the inside of tensioner.
• The tab (B) is released by fully pushing the lever down. As a

result, the plunger can be moved.

b.

Pull up the lever to align its hole position with the body hole posi-
tion.
• When the lever hole is aligned with the body hole position, the

plunger is fixed.

• When the protrusion parts of the plunger ratchet and the tab

face each other, both hole positions are not aligned. At that
time, correctly engage them and align these hole positions by
slightly moving the plunger.

c.

Insert the stopper pin (D) into the body hole through the lever hole, and then fix the lever at the upper
position.
• Figure shows the example that a hexagonal wrench for 2.5 mm (0.098 in) is used.

d.

Remove chain tensioner.

11. Remove the timing chain tension guide (2) and the timing chain

slack guide (1).

12. Remove the timing chain (2).

• Pull the looseness of timing chain toward the camshaft

sprocket (EXH) (1), and then remove the timing chain and
start the removal from camshaft sprocket (EXH) side.

CAUTION:

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

13. Remove the crankshaft sprocket and the oil pump drive related parts with the following procedure.
a.

Remove chain tensioner (1).
• Pull out from the shaft (B) and spring fixing holes (A).

PBIC3713E

PBIC3714E

PBIC3715E

PBIC3716E

TIMING CHAIN

EM-47

< REMOVAL AND INSTALLATION >

[HR12DE]

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b.

Hold the top of the oil pump shaft using the TORX socket (size:
E8), and then loosen the oil pump sprocket nuts and remove
them.

c.

Remove the crankshaft sprocket (1), the oil pump drive chain
(2), and the oil pump sprocket (3) at the same time.

INSTALLATION

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

1.

Install the crankshaft sprocket and the oil pump drive related parts with the following procedure:

a.

Install the crankshaft sprocket (1), the oil pump drive chain (2),
and the oil pump sprocket (3) at the same time.

• Install the crankshaft sprocket so that its invalid gear area (A)

is towards the back of the engine.

• Install the oil pump sprocket so that its hexagonal surface

faces (B) the front of engine.

NOTE:
There is no matching mark in the oil pump drive related parts. 

PBIC3720E

1

: Timing chain 

2

: Camshaft sprocket (EXH)

3

: Timing chain slack guide

4

: Chain tensioner

5

: Oil pump drive chain

6

: Oil pump sprocket

7

: Crankshaft sprocket

8

: Timing chain tension guide

9

: Camshaft sprocket (INT)

A

: Blue link 

B

: Matching mark (stamp)

C

: Orange link

D

: Matching mark (stamp)

E

: Crankshaft key (point straight up)

F

: Matching mark (peripheral stamp line)

G

: Blue link

PBIC3718E

: Engine front

PBIC3719E

EM-48

< REMOVAL AND INSTALLATION >

[HR12DE]

TIMING CHAIN

b.

Hold the top of the oil pump shaft using the TORX socket (size:
E8), and then tighten the oil pump sprocket nuts.

c.

Install chain tensioner (1).
• Insert the body into the shaft (B) while inserting the spring into

the fixing hole (A) of cylinder block front surface.

• Check that the tension is applied to the oil pump drive chain

after installing.

2.

Install timing chain with the following procedure.

• Install by aligning matching marks on each sprocket and tim-

ing chain.

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

slightly to correct the position.

CAUTION:

• For the following note, after the matching marks are

aligned, keep them aligned by holding them with a hand. 

• To avoid skipped teeth, never rotate crankshaft and cam-

shaft until front cover is installed.

3.

Install timing chain tension guide (2) and timing chain slack
guide (1).

1

: Crankshaft sprocket

2

: Oil pump drive chain 

3

: Oil pump sprocket

PBIC3720E

PBIC3716E

A

: Blue link 

B

: Matching mark (stamp)

C

: Orange link

D

: Matching mark (stamp)

E

: Crankshaft key (point straight up)

F

: Matching mark (peripheral stamp line)

G

: Blue link

PBIC3721E

PBIC3714E

TIMING CHAIN

EM-49

< REMOVAL AND INSTALLATION >

[HR12DE]

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4.

Install chain tensioner (1).
• Fix the plunger at the most compressed position using a stop-

per pin (A), and then install it.

• Securely pull out the stopper pin after installing the chain ten-

sioner.

5.

Check matching mark position of timing chain and each sprocket again.

6.

Install the front oil seal to the front cover. Refer to 

EM-70, "FRONT OIL SEAL : Removal and Installation"

7.

Install front cover with the following procedure:

a.

Apply a continuous bead of liquid gasket with tube presser
(commercial service tool) to front cover as shown in the figure. 
Use Genuine Liquid Gasket or equivalent.

PBIC3722E

1

: Cylinder head

2

: Cylinder block

3

: Oil pan (upper)

A

: Liquid gasket application area [

φ

3.0 - 4.0 mm (0.12 - 0.16 in)]

PBIC3724E