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CAMSHAFTPFP:13001
Removal and InstallationEBS00LS2
NOTE:
This section describes removal/installation procedure of camshaft without removing front cover. NISSAN X-TRAIL 2003 Service Repair Manual CAMSHAFT
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CAMSHAFTPFP:13001
Removal and InstallationEBS00LS2
NOTE:
This section describes removal/installation procedure of camshaft without removing front cover.](/manual-img/5/57404/w960_57404-104.png)
CAMSHAFT
EM-53
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CAMSHAFTPFP:13001
Removal and InstallationEBS00LS2
NOTE:
This section describes removal/installation procedure of camshaft without removing front cover. If front cover
is removed or installed, removal of camshaft bracket (No. 1) is easier before step 8 and installation is easier
after step 3. Regarding removal and installation of front cover, refer to EM-44, "
TIMING CHAIN" .
REMOVAL
1. Release fuel pressure. Refer to EC-48, "FUEL PRESSURE RELEASE" (WITH EURO-OBD) or EC-510,
"FUEL PRESSURE RELEASE" (WITHOUT EURO-OBD).
2. Remove the following parts.
Ignition coil; Refer to EM-29, "IGNITION COIL" .
Rocker cover; Refer to EM-42, "ROCKER COVER" .
3. Remove power steering reservoir tank from bracket to move power steering piping. Refer to PS-34,
"HYDRAULIC LINE" .
1. Camshaft bracket (No. 2 to 5) 2. Seal washer 3. Camshaft bracket (No. 1)
4. Front cover 5. Chain guide 6. Chain tensioner
7. Spring 8. Chain tensioner plunger 9. O-ring
10. Oil ring 11. O-ring 12.Intake valve timing control solenoid
valve
13. Intake valve timing control cover 14. Camshaft sprocket (INT) 15. Camshaft sprocket (EXH)
16. O-ring 17. Valve lifter 18. Camshaft (INT)
19. Camshaft (EXH) 20. O-ring 21. Camshaft position sensor (PHASE)
PBIC2184E
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CAMSHAFT
CAUTION:
To avoid power steering fluid leakage, temporarily fix power steering reservoir tank vertically.
4. Remove intake valve timing control cover with the following procedure NISSAN X-TRAIL 2003 Service Repair Manual EM-54
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CAMSHAFT
CAUTION:
To avoid power steering fluid leakage, temporarily fix power steering reservoir tank vertically.
4. Remove intake valve timing control cover with the following procedure](/manual-img/5/57404/w960_57404-105.png)
EM-54
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CAUTION:
To avoid power steering fluid leakage, temporarily fix power steering reservoir tank vertically.
4. Remove intake valve timing control cover with the following procedure:
a. Disconnect intake valve timing control solenoid valve harness connector.
b. Remove intake valve timing control solenoid valve, if necessary.
c. Disconnect ground cables.
d. Loosen bolts in reverse order as shown in the figure.
e . U s e a s e a l c u t t e r ( s p e c i a l s e r v i c e t o o l : K V 1 0 1111 0 0 ) o r e q u i v a -
lent tool to cut liquid gasket for removal.
5. Pull chain guide between camshaft sprockets out through front cover.
6. Set No. 1 cylinder at TDC on its compression stroke with the following procedure:
a. Open splash guard on RH undercover.
b. Rotate crankshaft pulley clockwise and align TDC mark to timing
indicator on front cover.
c. At the same time, make sure that the mating marks on camshaft
sprockets are located as shown in the figure.
If not, rotate crankshaft pulley one more turn to align mating
marks to the positions in the figure.
7. Remove camshaft sprockets with the following procedure:
a. Line up the mating marks on camshaft sprockets, and paint indelible mating marks on timing chain link
plate.
KBIA0085E
KBIA0190E
PBIC2351E
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b. Push in chain tensioner plunger. Insert a stopper pin into hole on
chain tensioner body to secure chain tensioner plunger and
remove chain tensioner. NISSAN X-TRAIL 2003 Service Repair Manual CAMSHAFT
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b. Push in chain tensioner plunger. Insert a stopper pin into hole on
chain tensioner body to secure chain tensioner plunger and
remove chain tensioner.](/manual-img/5/57404/w960_57404-106.png)
CAMSHAFT
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b. Push in chain tensioner plunger. Insert a stopper pin into hole on
chain tensioner body to secure chain tensioner plunger and
remove chain tensioner.
NOTE:
Use approximately 0.5 mm (0.02 in) dia. hard metal pin as a
stopper pin.
c. Secure hexagonal part of camshaft with a wrench. Loosen cam-
shaft sprocket mounting bolts and remove camshaft sprockets.
CAUTION:
Do not rotate crankshaft or camshaft while timing chain is
removed. It causes interference between valve and piston.
NOTE:
Chain tension holding work is not necessary. Crankshaft
sprocket and timing chain do not disconnect structurally while
front cover is attached.
8. Remove camshaft position sensor (PHASE) from cylinder head back side.
CAUTION:
Handle carefully to avoid dropping and shocks.
Do not disassemble.
Do not allow metal powder to adhere to magnetic part at sensor tip.
Do not place sensor in a location where it is exposed to magnetism.
9. Loosen mounting bolts in reverse order as shown in the figure,
and remove camshaft brackets and camshafts.
Remove camshaft bracket (No. 1) by slightly tapping it with a
plastic hammer.
10. Remove valve lifters.
Identify installation positions, and store them without mixing them up.
INSPECTION AFTER REMOVAL
Camshaft Runout
1. Put V-block on a precise flat table, and support No. 2 and 5 jour-
nal of camshaft.
2. Set dial gauge vertically to No. 3 journal.
3. Turn camshaft to one direction with hands, and measure the
camshaft runout on dial gauge. (Total indicator reading)
4. If out of the standard, replace camshaft.
KBIA0048E
KBIA0049E
SBIA0255E
Standard: Less than 0.02 mm (0.0008 in).
PBIC2499E
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Camshaft Cam Height
1. Measure the camshaft cam height with a micrometer.
2. If out of the standard, replace camshaft.
Camshaft Journal Oil Clearance
CAMSHAFT JOURNAL DIAMETER
Me NISSAN X-TRAIL 2003 Service Repair Manual EM-56
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Camshaft Cam Height
1. Measure the camshaft cam height with a micrometer.
2. If out of the standard, replace camshaft.
Camshaft Journal Oil Clearance
CAMSHAFT JOURNAL DIAMETER
Me](/manual-img/5/57404/w960_57404-107.png)
EM-56
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Camshaft Cam Height
1. Measure the camshaft cam height with a micrometer.
2. If out of the standard, replace camshaft.
Camshaft Journal Oil Clearance
CAMSHAFT JOURNAL DIAMETER
Measure the outer diameter of camshaft journal with a micrometer.
CAMSHAFT BRACKET INNER DIAMETER
Tighten camshaft bracket bolts with specified torque. Refer to EM-58, "INSTALLATION" for the tightening
procedure.
Measure the inner diameter of camshaft bracket with an inside
micrometer.
CAMSHAFT JOURNAL OIL CLEARANCE
(Oil clearance) = (Camshaft bracket inner diameter) – (Cam-
shaft journal diameter)
If out of the standard, replace either or both camshaft and cylinder head.
NOTE:
Camshaft bracket cannot be replaced as a single part, because it is machined together with cylinder head.
Replace whole cylinder head assembly.
Camshaft End Play
1. Install camshaft in cylinder head. Refer to EM-58, "INSTALLATION" for tightening procedure. Standard:
Intake
QR20DE : 45.015 - 45.205 mm (1.7722 - 1.7797 in)
QR25DE : 45.665 - 45.855 mm (1.7978 - 1.8053 in)
Exhaust
QR20DE : 42.825 - 43.015 mm (1.6860 - 1.6935 in)
QR25DE : 43.975 - 44.165 mm (1.7313 - 1.7388 in)
PBIC0039E
Standard:
No. 1 : 27.935 - 27.955 mm (1.0998 - 1.1006 in)
No. 2, 3, 4, 5 : 23.435 - 23.455 mm (0.9226 - 0.9234 in)
PBIC0040E
Standard:
No. 1 : 28.000 - 28.021 mm (1.1024 - 1.1032 in)
No. 2, 3, 4, 5 : 23.500 - 23.521 mm (0.9252 - 0.9260 in)
Standard: 0.045 - 0.086 mm (0.0018 - 0.0034 in)
PBIC0041E
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2. Install dial gauge in thrust direction on front end of camshaft.
Read the end play of dial gauge when camshaft is moved for-
ward/backward (in direct NISSAN X-TRAIL 2003 Service Repair Manual CAMSHAFT
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2. Install dial gauge in thrust direction on front end of camshaft.
Read the end play of dial gauge when camshaft is moved for-
ward/backward (in direct](/manual-img/5/57404/w960_57404-108.png)
CAMSHAFT
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2. Install dial gauge in thrust direction on front end of camshaft.
Read the end play of dial gauge when camshaft is moved for-
ward/backward (in direction to axis).
Measure the following parts if out of the standard.
–Dimension “A” for camshaft No. 1 journal
–Dimension “B” for cylinder head No. 1 journal
Refer to the standards above, and then replace camshaft and/
or cylinder head.
Camshaft Sprocket Runout
1. Install camshaft in cylinder head. Refer to EM-58, "INSTALLATION" for tightening procedure.
2. Install camshaft sprocket to camshaft. Refer to EM-53, "
Removal and Installation" .
3. Measure the camshaft sprocket runout with a dial gauge. (Total
indicator reading)
If it exceeds the limit, replace camshaft sprocket.
Valve Lifter
Check if surface of valve lifter has any wear or cracks.
If anything above is found, replace valve lifter. Refer to EM-61,
"Valve Clearance" . Standard: 0.115 - 0.188 mm (0.0045 - 0.0074 in)
PBIC0042E
Standard : 25.800 - 25.848 mm (1.0157 - 1.0176 in)
Standard : 25.660 - 25.685 mm (1.0102 - 1.0112 in)
KBIA2426J
Limit : 0.15 mm (0.0059 in)
KBIA0181J
KBIA0182E
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Valve Lifter Clearance
VALVE LIFTER OUTER DIAMETER
Measure the outer diameter of valve lifter with a micrometer.
VALVE LIFTER HOLE DIAMETER
Measure the diameter of valve lifter NISSAN X-TRAIL 2003 Service Repair Manual EM-58
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Valve Lifter Clearance
VALVE LIFTER OUTER DIAMETER
Measure the outer diameter of valve lifter with a micrometer.
VALVE LIFTER HOLE DIAMETER
Measure the diameter of valve lifter](/manual-img/5/57404/w960_57404-109.png)
EM-58
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Valve Lifter Clearance
VALVE LIFTER OUTER DIAMETER
Measure the outer diameter of valve lifter with a micrometer.
VALVE LIFTER HOLE DIAMETER
Measure the diameter of valve lifter hole of cylinder head with an
inside micrometer. .
VALVE LIFTER CLEARANCE
(Valve lifter clearance) = (Valve lifter hole diameter) – (Valve
lifter outer diameter)
If out of the standard, referring to the each standard of valve
lifter outer diameter and valve lifter hole diameter, replace either
or both valve lifter and cylinder head.
INSTALLATION
1. Install valve lifters.
Install them in the original positions.
2. Install camshafts.
Distinction between intake and exhaust camshafts is per-
formed with the different shapes of rear end.
Install camshafts so that camshaft dowel pins on the front side
are positioned as shown in the figure.
3. Install camshaft brackets with the following procedure:Standard: 33.965 - 33.980 mm (1.3372 - 1.3378 in)
JEM798G
Standard: 34.000 - 34.021 mm (1.3386 - 1.3394 in)
Standard: 0.020 - 0.056 mm (0.0008 - 0.0022 in)
PBIC0043E
Intake : Signal plate shape for camshaft position
sensor (PHASE)
Exhaust : Cone end shape
KBIA0246E
KBIA0051E
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a. Install camshaft brackets (No. 2 to 5) aligning the identification
marks on upper surface as shown in the figure.
NOTE:
Install so that identification mark can be correctly read when
viewed from the exhaust side.
b. Install camshaft bracket (No. 1) with the following procedure:
i. Apply liquid gasket to camshaft bracket (No. 1) as shown in the
figure.
Use Genuine Liquid Gasket or equivalent.
CAUTION:
After installation, be sure to wipe off any excessive liquid
gasket leaking from part “A” (both on right and left sides).
ii. Apply liquid gasket to camshaft bracket (No. 1) contact surface
on the front cover backside.
Use Genuine Liquid Gasket or equivalent.
Apply liquid gasket to the outside of bolt hole on front cover.
iii. For camshaft bracket (No. 1) near installation position, and
install it without disturbing the liquid gasket applied to the sur-
faces.
SBIA0256E
SBIA0257E
SBIA0258E
PBIC2391E
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4. Tighten mounting bolts of camshaft brackets in the following
steps, in numerical order as shown in the figure.
a. Tighten No. 9 to 11 in numerical order.
b. Tighten No. 1 to 8 NISSAN X-TRAIL 2003 Service Repair Manual EM-60
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4. Tighten mounting bolts of camshaft brackets in the following
steps, in numerical order as shown in the figure.
a. Tighten No. 9 to 11 in numerical order.
b. Tighten No. 1 to 8](/manual-img/5/57404/w960_57404-111.png)
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4. Tighten mounting bolts of camshaft brackets in the following
steps, in numerical order as shown in the figure.
a. Tighten No. 9 to 11 in numerical order.
b. Tighten No. 1 to 8 in numerical order.
c. Tighten all bolts in numerical order.
d. Tighten all bolts in numerical order.
CAUTION:
After tightening mounting bolts of camshaft brackets, be sure to wipe off excessive liquid gasket
from the parts listed below.
Mating surface of rocker cover.
Mating surface of front cover. (When installed without front cover)
5. Install camshaft position sensor (PHASE).
6. Install camshaft sprockets.
Install them by aligning the mating marks on each camshaft
sprocket with the ones painted on timing chain link plate dur-
ing removal.
CAUTION:
Aligned mating marks could slip. Therefore, after
matching them, hold the timing chain in place by hand.
Before and after installing chain tensioner, make sure
again that mating marks have not slipped.
NOTE:
Before installation of chain tensioner, it is possible to re-match
the marks on timing chain with the ones on each sprocket.
7. Install chain tensioner.
CAUTION:
After installation, pull the stopper pin off completely, and make sure that chain tensioner plunger
is released.
8. Install chain guide.
9. Install intake valve timing control cover with the following procedure:
a. Install intake valve timing control solenoid valve to intake valve timing control cover if removed.
b. Install oil rings to the intake camshaft sprocket insertion points on backside of intake valve timing control
cover.
c. Install O-ring to front cover.
d. Apply liquid gasket with a tube presser (special service tool:
WS39930000) to intake valve timing control cover as shown in
the figure.
Use Genuine Liquid Gasket or equivalent. : 2.0 N·m (0.2 kg-m, 1 ft-lb)
: 2.0 N·m (0.2 kg-m, 1 ft-lb)
: 5.9 N·m (0.6 kg-m, 4 ft-lb)
: 10.4 N·m (1.1 kg-m, 8 ft-lb)
SBIA0255E
PBIC2351E
SBIA0260E