Nissan Frontier D22. Manual - part 696

TIMING BELT

EM-91

[VG33E and VG33ER]

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TIMING BELT

PFP:13028

Components

EBS00GTE

CAUTION:

●

Do not bend or twist timing belt.

●

After removing timing belt, do not turn crankshaft and camshaft separately because valves will
strike piston heads.

●

Make sure that timing belt, camshaft sprocket, crankshaft sprocket and belt tensioner are clean
and free from oil and water.

●

Installation should be carried out when engine is cold.

Removal

EBS00GTF

1.

Remove the engine under cover.

2.

Drain the engine coolant from the radiator. Refer to 

MA-26, "DRAINING ENGINE COOLANT"

 .

WBIA0101E

EM-92

[VG33E and VG33ER]

TIMING BELT

CAUTION:

Do not spill coolant on the engine drive belts.

3.

Remove the radiator. Refer to 

CO-30, "Removal and Installation"

 .

4.

Remove the engine cooling fan and water pump pulley.

5.

Remove the following drive belts:

●

Power steering pump drive belt

●

Compressor drive belt

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Alternator drive belt

●

Supercharger drive belt (if equipped)

6.

Remove all of the spark plugs.

7.

Remove the distributor protector.

8.

Remove the compressor drive belt idler bracket.

9.

Disconnect the fresh-air intake tube from the rocker cover.

10. Disconnect the water hose from the thermostat housing.

11. Set the No. 1 piston at TDC on the compression stroke by rotat-

ing the crankshaft.

12. Remove the crankshaft pulley bolt.

13. Remove the crankshaft pulley using a suitable puller.

14. Remove the front upper and lower timing belt covers.

WBIA0188E

AEM223

TIMING BELT

EM-93

[VG33E and VG33ER]

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15. Align the timing belt sprockets to the timing marks on the engine.

●

Align the punchmark on the LH camshaft sprocket with the
punchmark on the timing belt rear cover.

●

Align the punchmark on the crankshaft sprocket with the
alignment mark on the oil pump housing.

●

Temporarily install the crankshaft pulley bolt on the crank-
shaft, to rotate the crankshaft.

16. Loosen the timing belt tensioner nut, rotate the tensioner, then

remove the timing belt.

Inspection

EBS00GTG

Visually check the condition of the timing belt. Replace the timing belt as necessary.

SEM394CA

SEM240A

Item to check

Visual inspection

Cause

Tooth is broken/tooth root 
is cracked.

●

Camshaft jamming

●

Distributor jamming

●

Damaged camshaft/crankshaft oil seal

Back surface is cracked/
worn.

●

Tensioner jamming

●

Overheated engine

●

Interference with belt cover

SEM394A

SEM395A

EM-94

[VG33E and VG33ER]

TIMING BELT

BELT TENSIONER AND TENSIONER SPRING

1.

Check the belt tensioner for smooth turning.

2.

Check the condition of the tensioner spring.

3.

Replace the tensioner as necessary.

Installation

EBS00GTH

1.

Confirm that the No. 1 piston is set at TDC on the compression
stroke.

●

Side surface is worn.

●

Belt corners are worn 
and round.

●

Wicks are frayed and 
coming out.

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Improper installation of belt

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Malfunctioning crankshaft pulley plate/timing belt 
plate

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Teeth are worn.

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Canvas on tooth face is 
worn down.

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Canvas on tooth is 
fluffy, rubber layer is 
worn down and faded 
white, or weft is worn 
down and invisible.

●

Poor belt cover sealing

●

Coolant leakage at water pump

●

Camshaft not functioning properly

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Distributor not functioning properly

●

Excessive belt tension

Oil, coolant, or water con-
taminated the belt.

—

●

Poor oil sealing of each oil seal

●

Coolant leakage at water pump

●

Poor belt cover sealing

Item to check

Visual inspection

Cause

SEM396A

SEM397A

SEM558

SEM510EA