Nissan Primera P11. Manual — part 418
Camshaft Timing Belt
CAUTION:
a. Do not bend or twist timing belt.
b. After removing timing belt, do not turn crankshaft and camshaft separately because valves will
strike piston heads.
c. Ensure that timing belt, camshaft sprocket, crankshaft sprocket and belt tensioner are clean and
free from oil and water.
p
1
Front camshaft sprocket
p
2
Idler
p
3
Belt tensioner
p
4
Crankshaft sprocket
p
5
Belt cover lower
p
6
Belt cover center
(Engine mounting bracket)
p
7
Timing belt
p
8
Belt cover upper
p
9
Gasket
p
10
Front camshaft sprocket plate
REMOVAL
1.
Drain engine coolant from radiator.
2.
Remove upper radiator hose and upper belt cover.
3.
Remove water pump pulley.
SEM368FA
6.4 - 8.4
(0.65 - 0.86, 56.6 - 74.3)
Lubricate with new engine oil.
N·m (kg-m, in-lb)
N·m (kg-m, ft-lb)
Locking sealant
5.3 - 7.3
(0.54 - 0.74,
46.9 - 64.6)
3 - 5
(0.3 - 0.5, 27 - 44)
87 - 107
(8.9 - 10.9,
64 - 79)
32 - 40
(3.3 - 4.1, 24 - 30)
32 - 40
(3.3 - 4.1, 24 - 30)
142 - 152
(14.5 - 15.5,
105 - 112)
3 - 5 (0.3 - 0.5, 27 - 44)
43 - 58 (4.4 - 5.9, 32 - 43)
SEC. 112
⋅
120
⋅
130
⋅
135
: üDo not re-use
SEM047F
Upper radiator hose
TIMING BELT
CD20T
Camshaft Timing Belt
EM-131
4.
Set No. 1 cylinder at TDC on its compression stroke. (TDC is
indicated by crankshaft pulley notch without painted mark.)
5.
Remove starter motor, and install ring gear stopper using
mounting bolt holes.
6.
Remove crank pulley bolt.
7.
Remove crank pulley using puller.
Be sure to securely attach puller jaws. Attach jaws only to
the rear side of pulley.
8.
Remove lower belt cover.
9.
Remove timing belt.
(1) Loosen tensioner pulley bolt, turn tensioner pulley counter-
clockwise then tighten bolt.
(2) Remove camshaft sprocket plate.
(3) Remove idler pulley.
(4) Remove timing belt with crankshaft sprocket.
CAUTION:
Do not allow any magnetic materials to contact crankshaft
sprocket.
(5) Remove tensioner pulley and return spring.
SEM369F
SEM681D
SEM520D
Loosen
Tighten
SEM515D
SMA398A
TIMING BELT
CD20T
Camshaft Timing Belt (Cont’d)
EM-132
Inspection
Timing belt
Visually check the condition of timing belt.
Replace if any abnormality is found.
Item to check
Problem
Cause
Tooth is broken/tooth root
is cracked.
SEM394A
I
Camshaft jamming
I
Damaged camshaft/crankshaft oil seal
Back surface is cracked/
worn.
SEM395A
I
Tensioner jamming
I
Overheated engine
I
Interference with belt cover
Side surface is worn.
I
Belt corners are worn and round.
I
Wicks are frayed and coming out.
SEM396A
I
Improper installation of belt
I
Malfunctioning crankshaft pulley plate/timing belt
plate
Teeth are worn.
I
Canvas on tooth face is worn down.
I
Canvas on tooth is fluffy, rubber layer is worn
down and faded white, or weft is worn down and
invisible.
SEM397A
Rotating direction
I
Poor belt cover sealing
I
Coolant leakage at water pump
I
Camshaft not functioning properly
I
Excessive belt tension
Oil, coolant or water is
stuck to belt.
I
Poor oil sealing of each oil seal
I
Coolant leakage at water pump
I
Poor belt cover sealing
TIMING BELT
CD20T
Inspection
EM-133
Belt tensioner, tensioner spring and idler
1.
Check belt tensioner and idler for smooth turning.
2.
Check condition of tensioner spring.
Crankshaft sprocket and front camshaft sprocket
Check teeth for abnormal signs.
Installation
1.
Confirm that No. 1 piston is set at TDC on its compression
stroke. (TDC is indicated by crankshaft pulley notch without
painted mark.)
2.
Install tensioner and return spring.
Temporarily tighten bolts so that tensioner is set at the fully
outside position.
3.
Install idler and tighten bolt to the specified torque.
4.
Install timing belt with crankshaft sprocket.
a.
Align white lines on timing belt with punchmarks on
camshaft sprocket and crankshaft sprocket.
b.
Point arrow on timing belt toward belt cover.
5.
Install camshaft sprocket plate and secure screws with Loctite.
SEM558
SEM516D
SEM517D
SEM518D
Mark
43 cogs
Align
Align
SEM519DA
TIMING BELT
CD20T
Inspection (Cont’d)
EM-134
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