2004 NISSAN TERRANO Service Repair Manual

Installation
1. Install the front plate.
1) Install the O-ring and gasket to the cylinder block.
2) Install the front plate.
ILightly tap with a hammer if the dowel pin cannot be inserted
easily.
CAUTION:
Make sure that the O-ring does not pop out.
3) Apply Three Bond 1207C (KP510 00150) with a spreader between the cylinder block plate under the cylinder block (oil
pan side) and the front plate (shown by the arrows in the fig-
ure).
2. Install the fuel injection pump.
I After installing the front plate, align the 6 mm (0.24 in) dia. hole
of the pump flange and the 6 mm (0.24 in) dia. hole position of
the pump body.
3. Install each timing gear.
I Align the match marks of the timing gears by referring to the
figure below.
I When installing timing gear, follow the order ( q
1,q2) shown in
the dotted box in the figure below to facilitate installation.
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TIMING GEARZD
Inspection (Cont'd)
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4. Install the front oil seal to the gear case.
IApply engine oil to the fitting side.
I Evenly insert the front oil seal using a drift [outer dia.: approx.
64 mm (2.52 in)] completely.
CAUTION:
Make sure the oil seal does not spill off the end side of the gear
case.
5. Install the gear case.
1) Before installing gear case, remove all traces of liquid gasket from mating surface using a scraper.
2) Align gasket with dowel and install.
3) Install the O-rings to the gear case.
I The O-ring at the top position shown in the figure can be
installed in during cylinder head installation.
4) Apply a continuous bead of liquid gasket to gear case.
I Use Genuine Liquid Gasket or equivalent.
a. Coat of liquid gasket should be maintained within 2.0 to 3.0 mm (0.079 to 0.118 in) dia. range.
b. Attach gear case to cylinder block within 5 minutes after coating.
c. Wait at least 30 minutes before refilling engine oil or start- ing engine.
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TIMING GEARZD
Installation (Cont'd)
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CAUTION:
Apply the liquid gasket around the bolt holes shown by the
arrows in the figure.
4) Install the gear case.
ITap the area around the dowel pin with a plastic hammer if it
cannot be inserted easily.
CAUTION:
Do not pop out the O-rings.
5) Install the holding bolt referring to the figure. Dimension below neck:A: 25 mm (0.98 in)
B: 30 mm (1.18 in)
C: 50 mm (1.97 in)
D: 80 mm (3.15 in)
E: 20 mm (0.79 in)
6) Install the holding bolts from the rear side of the front plate.
6. Install the crankshaft pulley.
I Insert by aligning the 2 sides of the oil pump with the 2 sides
of the shaft on the rear side of the crankshaft pulley.
CAUTION:
Do not damage the oil seal lip when inserting.
I Refer to EM-40, ªRemovalº for the crankshaft setting proce-
dures when tightening the holding nut.
7. Install the water pump.
I Install it before installing the TDC sensor. Refer to ªWater
Pumpº in LC section.
8. Install the TDC sensor.
I Align the bracket knock pin with the hole on the gear case side
and tighten the holding bolt.
I Confirm that the clearance between the end of the sensor and
the signal detection protrusion of the crankshaft pulley is within
the specification.
Standard: 1 0.8 mm (0.039 0.031 in)
I Arrange the TDC sensor harness to the position shown in the
figure.
CAUTION:
Confirm that the harness has no deflection around the crank-
shaft pulley when installing the clamp.
9. Install the timing chain, other parts in connection with the tim- ing chain, and the chain cover. Refer to EM-26, ªTIMING
CHAINº.
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TIMING GEARZD
Installation (Cont'd)
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10. Remove the internal mechanism setting bolt of the idler gear(A).
11. Apply liquid gasket to the plug thread.
12. Install in the reverse order of removal.
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TIMING GEARZD
Installation (Cont'd)
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VALVE OIL SEAL
1. Remove timing chain. Refer to EM-26, ªTIMING CHAINº.
2. Remove injection nozzle assembly. Refer to ªInjection Tube andInjection Nozzleº in ªBASIC SERVICE PROCEDUREº in EC
section.
3. Remove camshaft. Refer to EM-30, ªCAMSHAFTº.
4. Remove valve lifters and mark order No. on each lifter.
5. Replace valve oil seal according to the following procedure.
When replacing valve oil seal, set the corresponding piston at
TDC. Failure to do so causes the valve to drop into the cylin-
der.
1) Set No. 1 cylinder at TDC.
2) Remove valve springs and valve oil seals for No. 1 and No. 4 cylinders. Valve spring seats should not be removed.
3) Install new valve oil seals for No. 1 and No. 4 cylinders as illustrated. Reinstall valve springs. (pink paint side toward cyl-
inder head)
4) Install valve spring retainers on intake valves and valve rotators on exhaust valves, and remount valve assembly.
5) Set No. 2 cylinder at TDC.
6) Replace valve oil seals for No. 2 and No. 3 cylinders according to steps 2) and 3).
7) Install valve lifters in original positions.
CRANKSHAFT OIL SEAL INSTALLING DIRECTION AND
MANNER
I When installing crankshaft oil seals, be careful to install
them correctly, as shown in the figure.
I Wipe off excess oil after installing oil seal.
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OIL SEAL REPLACEMENTZD
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CRANKSHAFT FRONT OIL SEAL
1. Remove the front cover. Refer to ªTIMING GEARº.
2. Remove front oil seal with a suitable tool.
3. Apply engine oil to new oil seal and install oil seal using a suit-able tool.
CRANKSHAFT REAR OIL SEAL
1. Remove oil pan assembly. Refer to EM-22, ªOIL PANº.
2. Remove clutch cover assembly.
3. Remove flywheel and rear plate.
4. Remove oil seal retainer assembly.
5. Apply a continuous bead of liquid gasket to rear oil sealretainer.
a. Coat of liquid gasket should be maintained within 2.0 to 3.0 mm (0.079 to 0.118 in) dia. range.
b. Attach oil seal retainer to cylinder block within five min- utes after coating.
c. Wait at least 30 minutes before refilling engine oil or start- ing engine.
d. Use Genuine Liquid Gasket or equivalent.
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OIL SEAL REPLACEMENTZD
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Removal and Installation
Removal
1. Remove the following. (Refer to corresponding chapter fordetailed auxiliary work.)
I Drain coolant
I Rocker cover
I Injection tube
I Spill tube
I High pressure injection nozzle assembly
I Timing chain
I Camshaft
I Catalytic converter
I Turbocharger assembly
I Exhaust manifold
2. Remove mounting bolts of the gear case and water pump as shown by arrows in the figure.
3. Remove oil return pipe from the rear side of cylinder head.
4. Remove intake manifold.
SEM359G
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CYLINDER HEADZD
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5. Remove cylinder head assembly.
ILoosen and remove mounting bolts in the reverse order shown
in the figure.
I Lift up the cylinder head assembly to avoid interference with
dowel pins located between the block and head, and remove
cylinder head assembly.
CAUTION:
I Do not drop the O-ring located between the front of cylin-
der head and the rear of gear case into the engine.
I Remove glow plug in advance to avoid damage as the tip
of the glow plug projects from the bottom of the cylinder
head, or, place wood blocks beneath both ends of the cyl-
inder head to keep the cylinder bottom from any contact.
I For glow plug removal, the following shall be noted.
CAUTION:
I To avoid breakage, do not remove glow plug unless nec-
essary.
I Perform continuity test with glow plug installed.
I Keep glow plug from any impact. (Replace if dropped from
a height 10 cm (3.94 in) or higher.)
I Do not use air impact wrench.
6. Remove idler gear.
CAUTION:
While removing idler gear, keep the rear of idler gear facing up
to prevent idler shaft from falling.
Inspection
CYLINDER HEAD BOLT DEFORMATION (ELONGATION)
I Using micrometer, measure the outer diameters d1 and d2 of
bolt thread as shown in the figure.
I If the necking point can be identified, set it as measuring point
d2.
I Calculate the difference between d1 and d2.
Limit: 0.15 mm (0.0059 in)
IDLER GEAR END PLAY
I Tighten mounting bolts to the specified torque.
I Using feeler gauge, measure the clearance between gear plate
and idler gear.
Standard: 0.07 - 0.14 mm (0.0028 - 0.0055 in)
Limit: 0.2 mm (0.0079 in)
I If the measured value exceeds the limit value, replace idler
gear, shaft, and gear plate.
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CYLINDER HEADZD
Removal (Cont'd)
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