NISSAN NAVARA 2005 Repair Workshop Manual

CAMSHAFT
EM-69
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lNew adjusting shims have the thickness stamped on the rear
side.
lShims are available in 33 size from 2.10 mm (0.0827 in) to
2.74 mm (0.1079 in), in steps of 0.02 mm (0.0008 in). Refer to
EM-137, "
Available Shims".
10. Fit the selected adjusting shim to valve lifter.
CAUTION:
Place the stamped side of adjusting shim to valve lifter.
11. Compress valve spring using the camshaft pliers [SST: KV10115110] and remove the lifter stopper [SST].
12. Rotate crankshaft 2 to 3 turns by hand.
13. Confirm that the valve clearance is within the specification. Refer toEM-66, "
INSPECTION".
14. Install remaining parts in the reverse order of removal.
15. Warm up engine, and check for unusual noise and vibration.
JEM184G
PBIC2325E

EM-70
OIL SEAL
OIL SEAL
PFP:12279
Removal and Installation of Valve Oil SealEBS01EK7
REMOVAL
1. Turn crankshaft until the cylinder requiring new valve oil seals is at TDC. This will prevent valve from drop-
ping into cylinder.
2. Remove camshafts. Refer toEM-59, "
CAMSHAFT".
3. Remove adjusting shims and valve lifters. Refer toEM-59, "
CAMSHAFT".
lCheck the installation positions, and keep them to avoid being confused.
4. Rotate crankshaft, and set piston whose valve oil seal is to be removed to TDC. This will prevent valve
from dropping into cylinder.
5. Remove valve collet.
lCompress the valve spring with valve spring compressor,
attachment and adapter [SST]. Remove valve collet with a
magnet hand.
CAUTION:
When working, be careful not to damage valve lifter holes.
6. Remove valve spring retainer and valve spring.
7. Remove valve oil seal with the valve oil seal puller [SST].
INSTALLATION
1. Apply new engine oil to valve oil seal joint surface and seal lip.
2. Using the valve oil seal drift [SST], install valve oil seals referring
to the dimension shown in the figure.
3. Install in the reverse order of removal.
PBIC2388E
JEM153G
JEM165G

OIL SEAL
EM-71
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Removal and Installation of Front Oil SealEBS01EK8
REMOVAL
1. Remove the following parts.
lUndercover
lDrive belt; Refer toEM-12, "DRIVE BELTS".
lCrankshaft pulley; Refer toEM-79, "PRIMARY TIMING CHAIN".
2. Remove front oil seal with a suitable tool.
CAUTION:
Be careful not to damage oil pump housing and crankshaft.
INSTALLATION
1. Apply new engine oil to new front oil seal joint surface and seal lip.
2. Install front oil seal so that each seal lip is oriented as shown in
the figure.
lUsing the suitable drift [60 mm (2.36 in) dia.] (A), press fit the
oil seal (2) so that the dimension is as specified in the figure.
CAUTION:
Do not touch lips of oil seal. Make sure seal surfaces are
free of foreign materials.
3. Install in the reverse order of removal.
PBIC4050E
SEM715A
1 : Oil pump
PBIC4051E

EM-72
OIL SEAL
Removal and Installation of Rear Oil Seal
EBS01EK9
REMOVAL
1. Remove transmission and transfer assembly. Refer toMT-16, "TRANSMISSION ASSEMBLY"(M/T mod-
els) andAT- 2 4 7 , "
TRANSMISSION ASSEMBLY"(A/T models).
2. Remove flywheel (M/T models) or drive plate (A/T models). Refer toEM-110, "
CYLINDER BLOCK".
3. Remove rear oil seal with a suitable tool.
CAUTION:
Be careful not to damage crankshaft and cylinder block.
INSTALLATION
1. Apply new engine oil to new rear oil seal joint surface and seal lip.
2. Install rear oil seal so that each seal lip is oriented as shown in
the figure.
lPress in rear oil seal (2) to rear oil seal retainer (1) as shown
in the figure.
lUsing the drift [100 mm (3.94 in) dia.] (A), press fit so that the
dimension is as specified in the figure.
lAvoid inclined fitting. Force fit perpendicularly.
3. Install in the reverse order of removal after this step.
SEM715A
PBIC4052E

SECONDARY TIMING CHAIN
EM-73
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SECONDARY TIMING CHAINPFP:13028
ComponentsEBS01EKA
Removal and InstallationEBS01E68
CAUTION:
lAfter removing timing chain, do not turn crankshaft and camshaft separately, or valves will strike
piston heads.
lWhen installing camshafts, chain tensioners, oil seals, or other sliding parts, lubricate contacting
surfaces with new engine oil.
REMOVAL
lFor preparative work for removing/installing secondary timing chain to remove/install fuel pump, refer to
EM-49, "
FUEL PUMP".
lTo prepare for removing/installing secondary timing chain to remove/install camshaft, refer toEM-59,
"Removal and Installation".
1. Remove radiator shroud (upper and lower) and cooling fan (crankshaft driven type). Refer toCO-11,
"RADIATOR"andCO-19, "COOLING FAN".
2. Remove EGR cooler (A/T models) and related water hoses, or EGR tube (M/T models).
CAUTION:
lPerform this step when engine is cold.
lDo not spill engine coolant on drive belts.
3. Remove front chain case.
1. Chain tensioner 2. Spring 3. Plunger
4. Slack guide 5. Front chain case 6. Rubber washer
7. Tension guide 8. Gasket 9. Secondary timing chain
PBIC2326E

EM-74
SECONDARY TIMING CHAIN
lLoosen fixing bolts in reverse order of that shown in the figure
and remove them.
CAUTION:
lWhile front chain case is removed, cover openings to
prevent entry of foreign material into engine.
lDo not remove two mass dampers on the back of
cover.
4. Set the No. 1 piston to TDC on its compression stroke.
lTurn crankshaft pulley clockwise so that the alignment mark
(punched mark) on each camshaft sprocket is positioned as
showninthefigure.
lNo position indicator is provided on crankshaft pulley.
lWhen installing, color coded links on secondary timing
chain can be used as alignment marks. Marking may not
be necessary for removal; however, make alignment
marks as required because the alignment mark on fuel
pump sprocket may not be easy to see.
5. Remove chain tensioner.
a. Push the plunger of chain tensioner and keep it pressed with a
push pin.
JEM121G
SBIA0189E
SEM515G
JEM124G

SECONDARY TIMING CHAIN
EM-75
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b. Using the hexagon wrench [SST], remove bolts to remove chain
tensioner.
6. Remove slack guide.
lUsing the hexagon wrench [SST], remove bolt to remove
slack guide.
7. Remove tension guide.
8. Remove secondary timing chain.
lTiming chain alone can be removed without removing sprock-
ets.
INSPECTION AFTER REMOVAL
Timing Chain
Check for cracks and excessive wear at roller links. Replace
timing chain if necessary.
INSTALLATION
1. Install secondary timing chain.
SBIA0227E
SBIA0228E
JEM127G
SEM984C

EM-76
SECONDARY TIMING CHAIN
lWhen installing, match the alignment marks on sprockets with
color coded alignment marks (colored links) on the timing
chain.
2. Install tension guide.
lThe upper bolt has a longer shank than the lower bolt.
3. Using the hexagon wrench [SST], install slack guide.
4. Install chain tensioner.
a. Push the plunger of chain tensioner. While holding it with a push
pin, install chain tensioner.
b. Using the hexagon wrench [SST], tighten bolts.
c. Pull out the push pin, etc. holding the plunger.
lMake sure again that the alignment marks on the sprock-
ets and the colored alignment marks on the timing chain
are aligned.
5. Install front chain case.
1 : Secondary timing chain
2 : Chain tensioner
3 : Slack guide
4 : Fuel pump sprocket
5 : Tension guide
6 : Camshaft sprocket
A : Alignment mark (silver link)
B : Alignment mark (punched mark)
C : Alignment mark (yellow link)
PBIC4048E
SBIA0228E
SBIA0227E

SECONDARY TIMING CHAIN
EM-77
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a. Install tension guide on the back surface of front chain case.
lHold front chain case vertically when installing. Tension guide
may come off if front chain case is tilted.
b. Apply a continuous bead of liquid gasket on both ends of arched
area (locations where rear chain case is adjoined) as shown in
the figure.
lUse Genuine Liquid Gasket or equivalent.
c. Install front chain case.
lWhen installing, align dowel pin on oil pump housing with the pin hole.
lInstall No. 6, 10 and 11 bolts with the rubber washer to front chain case.
d. Tighten fixing bolts in numerical order shown in the figure.
e. After tightening all the bolts, re-tighten in the same order.
6. Hereafter, install in the reverse order of removal.
INSPECTION AFTER INSTALLATION
Inspection for Leaks
The following are procedures for checking fluids leak, lubricates leak and exhaust gases leak.
lBefore starting engine, check oil/fluid levels including engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer toMA-14, "
RECOMMENDED FLUIDS AND LUBRICANTS".
lUse procedure below to check for fuel leakage.
–Turn ignition switch “ON” (with engine stopped). With fuel pressure applied to fuel piping, check for fuel
leakage at connection points.
–Start engine. With engine speed increased, check again for fuel leakage at connection points.
lRun engine to check for unusual noise and vibration.
lWarm up engine thoroughly to make sure there is no leakage of fuel, exhaust gases, or any oil/fluids
including engine oil and engine coolant.
lBleed air from lines and hoses of applicable lines, such as in cooling system.
lAfter cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to the
specified level, if necessary.
SBIA0189E
JEF370Y
JEM121G

EM-78
SECONDARY TIMING CHAIN
Summary of the inspection items:
*1: Transmission/transaxle/CVT fluid, power steering fluid, brake fluid, etc.
*2: Check engine oil level 10 minutes after engine stopped.Item Before starting engine Engine running After engine stopped
Engine coolant Level Leakage Level
Engine oil Level Leakage Level (*2)
Other oils and fluid (*1) Level Leakage Level
Fuel Leakage Leakage Leakage
Exhaust gases — Leakage —