NISSAN TERRANO 2002 Service Repair Manual

BALANCER SHAFT OIL CLEARANCE
Outer diameter of balancer shaft journal
Measure the outer diameter of the balancer shaft journal with a
micrometer.
Standard:
Front side
50.875 - 50.895 mm (2.0029 - 2.0037 in) dia.
Rear side
50.675 - 50.695 mm (1.9951 - 1.9959 in) dia.
Inner diameter of balancer shaft bearing
Measure the inner diameter of the balancer shaft bearing using a
bore gauge.
Standard:
Front side
50.940 - 51.010 mm (2.0055 - 2.0083 in) dia.
Rear side
50.740 - 50.810 mm (1.9976 - 2.0004 in) dia.
Oil clearance calculations
Oil clearance = Bearing inner diameter þ Journal outer diameter
Standard: 0.045 - 0.135 mm (0.0018 - 0.0053 in)
Limit: 0.180 mm (0.0071 in)
BALANCER SHAFT BEARING REMOVAL AND
INSTALLATION
1. Remove balancer shaft front bearing.
FEM039
FEM040
SEM993BA
SEM380G
TIMING GEARZD
Inspection (Cont'd)
EM-43

2. Using Tool, remove balancer shaft rear bearing from engine.
3. Install the rear and front balancer shaft bearings.
IInstall from the cylinder block hole to the rear journal and then
the front journal.
IInstall the groove of the balancer shaft bearing facing the front
and the under right direction.
(Align the guide plate and bar knock pin and then force in the
balancer shaft bearing.)
IAlign the balancer shaft bearing groove with the knock pin of
the bar (SST) and install the balancer shaft bearing.)
IOn rear journals, so the bearing does not get out of position,
wrap tape around the bar.
SEM381G
SEM382G
SEM383G
EMV0514D
TIMING GEARZD
Inspection (Cont'd)
EM-44

IMake an alignment mark 11.0 0.8 mm (0.433 0.031 in) from
the bar No. 2 engraved line with a marker pen. This alignment
markq
Bwill be the point to where the rear bearing is pushed.
IInsert the bar with the bearing installed into the cylinder block
and install the guide plate (SST).
IAlign the guide plate with the ZD engraving and install the bolts.
CAUTION:
Use a washer of the same thickness used on the front plate to
prevent the guide plate from bending.
IPush the engraved bar alignment markq
Bto the same position
of the guide plate tipq
A.
IAfter all the journals have been installed, make sure that all the
journal and cylinder block oil holes are aligned.
4. Install the front balancer shaft bearing.
IAlign the journal and cylinder block oil holes.
IUse a drift (SST) to force in the tip of the journal to 8.0 0.3 mm
(0.315 0.012 in) inside the cylinder block.
IAfter installing the journal, make sure that the journal and cyl-
inder block oil holes are aligned.
SEM385G
SEM384G
SEM386G
SEM380G
TIMING GEARZD
Inspection (Cont'd)
EM-45

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.
IAfter 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.
IAlign the match marks of the timing gears by referring to the
figure below.
IWhen installing timing gear, follow the order (q
1,q2) shown in
the dotted box in the figure below to facilitate installation.
SEM387G
FEM041
FEM042
TIMING GEARZD
Inspection (Cont'd)
EM-46

4. Install the front oil seal to the gear case.
IApply engine oil to the fitting side.
IEvenly 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.
IThe 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.
IUse 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.
FEM043
FEM044
SEM353G
FEM045
TIMING GEARZD
Installation (Cont'd)
EM-47

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.
IInsert 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.
IRefer to EM-40, ªRemovalº for the crankshaft setting proce-
dures when tightening the holding nut.
7. Install the water pump.
IInstall it before installing the TDC sensor. Refer to ªWater
Pumpº in LC section.
8. Install the TDC sensor.
IAlign the bracket knock pin with the hole on the gear case side
and tighten the holding bolt.
IConfirm 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)
IArrange 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.
FEM046
SEM349G
TIMING GEARZD
Installation (Cont'd)
EM-48

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.
FEM047
TIMING GEARZD
Installation (Cont'd)
EM-49

VALVE OIL SEAL
1. Remove timing chain. Refer to EM-26, ªTIMING CHAINº.
2. Remove injection nozzle assembly. Refer to ªInjection Tube and
Injection 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
IWhen installing crankshaft oil seals, be careful to install
them correctly, as shown in the figure.
IWipe off excess oil after installing oil seal.
SEM354G
SEM355G
SEM356G
SEM357G
SEM715A
OIL SEAL REPLACEMENTZD
EM-50

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 seal
retainer.
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.
SEM358G
FEM044
SLC822
FEM053
OIL SEAL REPLACEMENTZD
EM-51

Removal and Installation
Removal
1. Remove the following. (Refer to corresponding chapter for
detailed auxiliary work.)
IDrain coolant
IRocker cover
IInjection tube
ISpill tube
IHigh pressure injection nozzle assembly
ITiming chain
ICamshaft
ICatalytic converter
ITurbocharger assembly
IExhaust 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
FEM054
CYLINDER HEADZD
EM-52