Nissan Altima L32. Manual - part 660

EM-176

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REAR TIMING CHAIN CASE

b. After all bolts are initially tightened, retighten them to the specification in the numerical order as shown.
4. Install the primary and secondary timing chains. Refer to 

EM-166, "Installation"

.

5. Install the engine assembly. Refer to 

EM-202, "Removal and Installation"

.

Bolt length

Bolt position

Torque specification

20 mm (0.79 in)

1, 2, 3, 6, 7, 8, 9, 10

12.7 N·m (1.3 kg-m, 9 ft-lb)

16 mm (0.63 in)

4, 5, 11

12.7 N·m (1.3 kg-m, 9 ft-lb)

16 mm (0.63 in)

12 - 25

15.0 N·m (1.5 kg-m, 11 ft-lb)

CAMSHAFT

EM-177

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CAMSHAFT

Removal and Installation

INFOID:0000000004202173

CAUTION:

Apply new engine oil to parts marked in illustration before installation.

REMOVAL

1. Remove the timing chains. Refer to 

EM-163, "Removal"

.

2. Remove the fuel rail and injectors. Refer to 

EM-146, "Removal and Installation"

.

ALBIA0256GB

1.

Camshaft position sensor bracket (RH) 2.

Camshaft brackets

3.

No. 1 camshaft bracket (RH)

4.

Camshaft (EXH) RH

5.

Camshaft (INT) RH 6.

Cylinder head (RH)

7.

 Cylinder head (LH)

8.

Camshaft (EXH) LH 9.

Camshaft (INT) LH

10. No. 1 camshaft bracket (LH)

11. Camshaft brackets

12. Camshaft position sensor bracket (LH)

A.

Follow installation procedure

EM-178

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CAMSHAFT

3. Remove camshaft position brackets (RH shown LH similar).

4. Remove the intake and exhaust camshaft brackets and the cam-

shafts.

• Mark the camshafts, camshaft brackets, and bolts so they are

placed in the same position and direction for installation.

• Equally loosen the camshaft bracket bolts in several steps in

the numerical order as shown.

5. Remove valve lifters.

NOTE:

Identify installation positions to ensure proper installation.

6. Remove secondary timing chain tensioner from cylinder head

• Remove secondary tensioner with its stopper pin attached.

NOTE:

Stopper pin was attached when secondary timing chain was

removed.

INSTALLATION

ALBIA0259ZZ

SEM856E

SEM857E

SEM444G

CAMSHAFT

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1. Before installation, remove any old Silicone RTV Sealant from

component mating surfaces using a scraper.

• Remove the old Silicone RTV Sealant from the bolt holes and

threads.

• Do not scratch or damage the mating surfaces.

2. Before installing the front cam bracket, remove the old Silicone

RTV Sealant from the mating surface using a scraper.

• Do not scratch or damage the mating surface.

3. Turn the crankshaft until No. 1 piston is set at TDC on the com-

pression stroke.

• The crankshaft key should line up with the right bank cylinder

center line as shown.

4. Install camshaft chain tensioners on both sides of cylinder head.

Refer to 

EM-155, "Removal and Installation"

.

5. Install valve lifters.

NOTE:

Install them in original positions.

SEM161F

SEM892E

SEM532G

SEM444G