2001 NISSAN X-TRAIL Service Repair Manual

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Page 225 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual PRIMARY TIMING CHAIN
EM-175
[YD22DDTi]
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15. Remove chain tensioner.
●When removing chain tensioner, push the sleeve of chain ten-
sioner and keep it pressed with a push pin,

Page 226 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual EM-176
[YD22DDTi]
PRIMARY TIMING CHAIN
19. Remove primary timing chain with fuel supply pump sprocket
and crankshaft sprocket.
20. Remove chain guide and tension guides.
21. Remove fuel supply

Page 227 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual PRIMARY TIMING CHAIN
EM-177
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INSPECTION AFTER REMOVAL
Timing Chain
Check for cracks and excessive wear at roller links. Replace
chain if necessary.
INSTALL

Page 228 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual EM-178
[YD22DDTi]
PRIMARY TIMING CHAIN
b. Install four O-rings to the grooves of the cylinder block and fuel
supply pump bracket.
c. Install rear chain case.
●When installing, align the dowel pin wi

Page 229 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual PRIMARY TIMING CHAIN
EM-179
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8. Use the positioning stopper pin (SST) to hold the fuel supply
pump sprocket and install the bolt.
●Using a TORX wrench (

Page 230 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual EM-180
[YD22DDTi]
PRIMARY TIMING CHAIN
13. Install oil pump housing.
a. Apply a continuous bead of Genuine Liquid Gasket or equivalent
on locations shown in the figure. Refer to EM-111, "
Precauti

Page 231 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual PRIMARY TIMING CHAIN
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Refer to EM-170, "INSTALLATION" .
17. Install in the reverse order of removal hereafter.

Page 232 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual EM-182
[YD22DDTi]
CYLINDER HEAD
CYLINDER HEAD
PFP:11041
On-Vehicle ServiceEBS00LRV
CHECKING COMPRESSION PRESSURE
1. Warm up engine thoroughly. Then, stop it.
2. Using CONSULT-II, make sure no err

EM-182
[YD22DDTi]
CYLINDER HEAD
CYLINDER HEAD
PFP:11041
On-Vehicle ServiceEBS00LRV
CHECKING COMPRESSION PRESSURE
1. Warm up engine thoroughly. Then, stop it.
2. Using CONSULT-II, make sure no error codes are indicated for self-diagnosis items. Refer to EC-1412,
"Basic Inspection" .
●Do not disconnect CONSULT-II until the end of this operation; it will be used to check engine rpm and
for error detection at the end of this operation.
3. Disconnect the negative battery terminal.
4. Remove charge air cooler. Refer to EM-122, "
Removal and Installation"
5. To prevent fuel from being injected during inspection, remove
fuel supply pump fuse [ENG CONT (20A)] from fuse box on the
left side of engine compartment.
●Among marks on fuse box, [ENG CONT 2 (20A)] is for fuel
supply pump fuse.
6. Remove glow plugs from all the cylinders. Refer to EM-138,
"Removal and Installation" .
CAUTION:
●Before removal, clean the surrounding area to prevent
entry of any foreign materials into the engine.
●Carefully remove glow plugs to prevent any damage or
breakage.
●Handle with care to avoid applying any shock to glow plugs.
7. Install adapter to installation holes of glow plugs and connect
compression gauge for diesel engine.
8. Connect battery negative terminal.
9. Set the ignition switch to “START” and crank. When gauge
pointer stabilizes, read compression pressure and engine rpm.
Repeat the above steps for each cylinder.
●Always use a fully-charged battery to obtain specified engine
speed.
Compression pressure
Unit: kPa (bar, kg/cm2 , psi)/rpm
●When engine rpm is out of the specified range, check the specific gravity of battery liquid. Measure
again under corrected conditions.
●If engine rpm exceeds the limit, check valve clearance and combustion chamber components (valves,
valve seats, cylinder head gaskets, piston rings, pistons, cylinder bores, cylinder block upper and lower
surfaces) and measure again.
●If compression pressure is low in some cylinders, apply engine oil from glow plug installation hole. Then
check pressure again.
–If compression pressure becomes normal after applying engine oil, piston ring may be worn or dam-
aged. Check piston ring for malfunction. If any, replace piston ring.
–If compression pressure is still low after applying engine oil, valve may be malfunctioning. Check valve
for malfunction. If contact malfunction is found, replace valve or valve seat.
●If compression pressure in adjacent two cylinders is low after applying engine oil, pressure may be
leaking from gasket. In this case, replace cylinder head gasket.
10. Complete this operation as follows:
PBIC0680E
: 18 - 21 N·m (1.8 - 2.2 kg-m, 13 - 15 ft-lb)
SEM112G
Standard Minimum Difference limit between cylinders
2,893 (28.9, 29.5, 419)/200 2,452 (24.52, 25.0, 356)/200 490 (4.90, 5.0, 71)/200

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