ac unit NISSAN X-TRAIL 2005 Service Owner's Guide

EM-110
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CYLINDER BLOCK

Piston Pin Outer Diameter
Measure the outer diameter of piston pin with a micrometer.
Connecting Rod Bushing Oil Clearance
(Connecting rod bushing oil clearance) = (Connecting rod bushing inner diameter) – (Piston pin outer diame-
ter)

If the measured value is out of the standard, replace connecting rod assembly and/or piston and piston pin
assembly.

If replacing piston and piston pin assembly, refer to EM-111, "PISTON TO CYLINDER BORE CLEAR-
ANCE" .

If replacing connecting rod assembly, refer to EM-113, "CON-
NECTING ROD BEARING OIL CLEARANCE" to select con-
necting rod bearing.
Factory installed parts grading:

Service parts apply only to grade “0”.
Unit: mm (in)
*: After installing in connecting rod.
CYLINDER BLOCK DISTORTION

Using a scraper, remove gasket on the cylinder block surface, and also remove engine oil, scale, carbon,
or other contamination.
CAUTION:
Be careful not to allow gasket flakes to enter engine oil or engine coolant passages.Standard: 19.989 - 20.001 mm (0.7870 - 0.7874 in)
PBIC0117E
Standard: 0.005 - 0.017 mm (0.0002 - 0.0007 in)
PBIC2196E
Grade 0 1
Connecting rod bushing
inner diameter
* 20.000 - 20 .0 06
(0.7874 - 0.7876) 20.006 - 20.012
(0.7876 - 0.7879)
Piston pin hole diameter19.993 - 19.999
(0.7871 - 0.7874) 19.999 - 20. 005
(0.7874 - 0.7876)
Piston pin outer diameter 19.989 - 19.995
(0.7870 - 0.7872) 19.995 - 20.001
(0.7872 - 0.7874)
PBIC2197E

SERVICE DATA AND SPECIFICATIONS (SDS)
EM-117
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SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
Standard and LimitEBS00KNX
GENERAL SPECIFICATIONS
DRIVE BELT
INTAKE MANIFOLD AND EXHAUST MANIFOLD
Unit: mm (in)
SPARK PLUG
Unit: mm (in)
CYLINDER HEAD
Unit: mm (in) Engine typeQR20DE QR25DE
Cylinder arrangementIn-line 4
Displacement
cm
3 (cu in)1,998 (121.92) 2,488 (151.82)
Bore and stroke mm (in) 89.0 x 80.3 (3.504 x 3.161) 89.0 x 100.0 (3.504 x 3.937)
Valve arrangementDOHC
Firing order1-3-4-2
Number of piston ringsCompression 2
Oil 1
Compression ratio 9.0 9.5
Compression pressure
kPa (bar, kg/cm
2 , psi) / 250 rpmStandard 1,190 (11.9, 12.1, 173) 1,250 (12.5, 12.8, 181)
Minimum 990 (9.9, 10.1, 144) 1,060 (10.6, 10.8, 154)
Differential limit between cylinders 100 (1.0, 1.0, 14)
Tension of drive belt Auto adjustment by auto-tensioner
Items Limit
Surface distortionIntake manifold collector (QR25DE) 0.1 (0.004)
Intake manifold (QR25DE) 0.1 (0.004)
Exhaust manifold and three way catalyst assembly 0.3 (0.012)
Destination Except Russia For Russia
MakeNGK
Standard type LFR5A-11 PLFR5A-11
Hot type LFR4A-11 PLFR4A-11
Cold type LFR6A-11 PLFR6A-11
Spark plug gap Standard: 1.0 - 1.1 (0.039 - 0.043) Nominal: 1.1 (0.043)
ItemsLimit
Head surface distortion 0.1 (0.004)
PBIC0283E

EM-118
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SERVICE DATA AND SPECIFICATIONS (SDS)

VA LV E
Valve Timing
Unit: degree
( ): Valve timing control “ON”
Valve Dimensions
Unit: mm (in)
Valve Clearance
Unit: mm (in)
*: Approximately 80°C (176°F) Va l v e t i m i n g
Engine type a b c d e f
QR20DE 212 236 -4 (26) 60 (30)
329
QR25DE 224 244 0 (30) 64 (27) 41
PBIC0187E
Valve head diameter “D”Intake 35.5 - 35.8 (1.398 - 1.409)
Exhaust 30.5 - 30.8 (1.201 - 1.213)
Valve length “L”Intake 97.16 (3.8252)
Exhaust 98.82 (3.8905)
Valve stem diameter “d”Intake 5.965 - 5.980 (0.2348 - 0.2354)
Exhaust 5.955 - 5.970 (0.2344 - 0.2350)
Valve seat angle “α”Intake
45°15′ - 45°45′
Exhaust
Valve margin “T”Intake 1.1 (0.043)
Exhaust 1.3 (0.051)
SEM188A
Items Cold Hot* (reference data)
Intake 0.24 - 0.32 (0.009 - 0.013) 0.304 - 0.416 (0.012 - 0.016)
Exhaust 0.26 - 0.34 (0.010 - 0.013) 0.308 - 0.432 (0.012 - 0.017)

EM-120
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SERVICE DATA AND SPECIFICATIONS (SDS)

Valve Lifter
Unit: mm (in)
Valve Guide
Unit: mm (in) Items Standard
Valve lifter outer diameter 33.965 - 33.980 (1.3372 - 1.3378)
Valve lifter hole diameter 34.000 - 34.021 (1.3386 - 1.3394)
Valve lifter clearance 0.020 - 0.056 (0.0008 - 0.0022)
Items Standard part Service part
Valve guideOuter diameter 10.023 - 10.034 (0.3946 - 0.3950) 10.223 - 10.234 (0.4025 - 0.4029)
Inner diameter (Finished size) 6.000 - 6.018 (0.2362 - 0.2369)
Cylinder head valve guide hole diameter 9.975 - 9.996 (0.3927 - 0.3935) 10.175 - 10.196 (0.4006 - 0.4014)
Interference fit of valve guide 0.027 - 0.059 (0.0011 - 0.0023)
Items Standard Limit
Valve guide clearanceIntake 0.020 - 0.053 (0.0008 - 0.0021) 0.08 (0.003)
Exhaust 0.030 - 0.063 (0.0012 - 0.0025) 0.09 (0.004)
Projection length “L”Intake 10.1 - 10.3 (0.398 - 0.406)
Exhaust 10.0 - 10.4 (0.394 - 0.409)
PBIC0184E

SERVICE DATA AND SPECIFICATIONS (SDS)
EM-121
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Valve Seat
Unit: mm (in)
CAMSHAFT AND CAMSHAFT BEARING
Unit: mm (in) Items Standard Oversize [0.5 (0.02)] (Service)
Cylinder head seat recess diameter “D”Intake 36.500 - 36.516 (1.4370 - 1.4376) 37.000 - 37.016 (1.4567 - 1.4573)
Exhaust 31.500 - 31.516 (1.2402 - 1.2408) 32.000 - 32.016(1.2598 - 1.2605)
Valve seat outer diameter “d”Intake 36.597 - 36.613 (1.4408 - 1.4415) 37.097 - 37.113 (1.4605 - 1.4611)
Exhaust 31.600 - 31.616 (1.2441 - 1.2447) 32.100 - 32.116 (1.2638 - 1.2644)
Valve seat interference fitIntake 0.081 - 0.113 (0.0032 - 0.0044)
Exhaust 0.084 - 0.116 (0.0033 - 0.0046)
Items Standard Service
Height “h”Intake 5.9 - 6.0 (0.232 - 0.236) 5.0 - 5.1 (0.197 - 0.201)
Exhaust 5.9 - 6.0 (0.232 - 0.236) 4.91 - 5.01 (0.1933 - 0.1972)
Depth “H”6.0 (0.236)
PBIC2397E
Items Standard Limit
Camshaft runout [TIR*] Less than 0.02 (0.0008) —
Camshaft cam height “A”IntakeQR20DE 45.015 - 45.205 (1.7722 - 1.7797) —
QR25DE 45.665 - 45.855 (1.7978 - 1.8053) —
ExhaustQR20DE 42.825 - 43.015 (1.6860 - 1.6935) —
QR25DE 43.975 - 44.165 (1.7313 - 1.7388) —
Camshaft journal outer diameterNo. 1 27.935 - 27.955 (1.0998 - 1.1006) —
No. 2, 3, 4, 5 23.435 - 23.455 (0.9226 - 0.9234) —
Camshaft bracket inner diameterNo. 1 28.000 - 28.021 (1.1024 - 1.1032) —
No. 2, 3, 4, 5 23.500 - 23.521 (0.9252 - 0.9260) —
Camshaft journal oil clearance 0.045 - 0.086 (0.0018 - 0.0034) —
SEM671

EM-122
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SERVICE DATA AND SPECIFICATIONS (SDS)

*: Total indicator reading
CYLINDER BLOCK
Unit: mm (in) Camshaft end play 0.115 - 0.188 (0.0045 - 0.0074) —
Camshaft sprocket runout [TIR*] — 0.15 (0.0059) Items Standard Limit
Surface distortion Limit 0.1 (0.004)
Cylinder bore Inner diameterStandardGrade No. 2 89.010 - 89.020 (3.5043 - 3.5047)
Grade No. 3 89.020 - 89.030 (3.5047 - 3.5051)
Wear limit 0.2 (0.008)
Out-of-round (Difference between “X” and “Y”)
Limit0.015 (0.0006)
Taper (Difference between “A” and “C”) 0.01 (0.0004)
Main bearing housing inner diameter gradeGrade No. A
Grade No. B
Grade No. C
Grade No. D
Grade No. E
Grade No. F
Grade No. G
Grade No. H
Grade No. J
Grade No. K
Grade No. L
Grade No. M
Grade No. N
Grade No. P
Grade No. R
Grade No. S
Grade No. T
Grade No. U
Grade No. V
Grade No. W
Grade No. X
Grade No. Y
Grade No. 4
Grade No. 758.944 - 58.945 (2.3206 - 2.3207)
58.945 - 58.946 (2.3207 - 2.3207)
58.946 - 58.947 (2.3207 - 2.3207)
58.947 - 58.948 (2.3207 - 2.3208)
58.948 - 58.949 (2.3208 - 2.3208)
58.949 - 58.950 (2.3208 - 2.3209)
58.950 - 58.951 (2.3209 - 2.3209)
58.951 - 58.952 (2.3209 - 2.3209)
58.952 - 58.953 (2.3209 - 2.3210)
58.953 - 58.954 (2.3210 - 2.3210)
58.954 - 58.955 (2.3210 - 2.3211)
58.955 - 58.956 (2.3211 - 2.3211)
58.956 - 58.957 (2.3211 - 2.3211)
58.957 - 58.958 (2.3211 - 2.3212)
58.958 - 58.959 (2.3212 - 2.3212)
58.959 - 58.960 (2.3212 - 2.3213)
58.960 - 58.961 (2.3213 - 2.3213)
58.961 - 58.962 (2.3213 - 2.3213)
58.962 - 58.963 (2.3213 - 2.3214)
58.963 - 58.964 (2.3214 - 2.3214)
58.964 - 58.965 (2.3214 - 2.3215)
58.965 - 58.966 (2.3215 - 2.3215)
58.966 - 58.967 (2.3215 - 2.3215)
58.967 - 58.968 (2.3215 - 2.3216)
Difference in inner diameter between cylinders Standard Less than 0.03 (0.0012)
PBIC0281E

SERVICE DATA AND SPECIFICATIONS (SDS)
EM-123
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PISTON, PISTON RING AND PISTON PIN
Available Piston
Unit: mm (in)
Piston Ring
Unit: mm (in)
Piston Pin
Unit: mm (in) Piston skirt diameter “A” StandardGrade No. 2 88.990 - 89.000 (3.5035 - 3.5039)
Grade No. 3 89.000 - 89.010 (3.5039 - 3.5043)
0.20 (0.008) oversize (Service) 89.180 - 89.210 (3.5110 - 3.5122)
Piston height “H” dimension42.0 (1.654)
Piston pin hole diameterGrade No. 0 19.993 - 19.999 (0.7871 - 0.7874)
Grade No. 1 19.999 - 20.005 (0.7874 - 0.7876)
Piston to cylinder bore clearanceStandard 0.010 - 0.030 (0.0004 - 0.0012)
Limit 0.08 (0.0031)
PBIC0188E
Items Standard Limit
Side clearanceTop 0.045 - 0.080 (0.0018 - 0.0031) 0.11 (0.0043)
2nd 0.030 - 0.070 (0.0012 - 0.0028) 0.10 (0.0039)
Oil ring 0.065 - 0.135 (0.0026 - 0.0053) —
End gapTop 0.21- 0.31 (0.0083 - 0.0122) 0.54 (0.0213)
2nd 0.32 - 0.47 (0.0126 - 0.0185) 0.67 (0.0264)
Oil (rail ring) 0.20 - 0.60 (0.0079 - 0.0236) 0.95 (0.0374)
Piston pin outer diameterGrade No. 0 19.989 - 19.995 (0.7870 - 0.7872)
Grade No. 1 19.995 - 20.001 (0.7872 - 0.7874)
Piston to piston pin oil clearance Standard 0.002 - 0.006 (0.0001 - 0.0002)
Connecting rod bushing oil clearance Standard 0.005 - 0.017 (0.0002 - 0.0007)

EM-124
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SERVICE DATA AND SPECIFICATIONS (SDS)

CONNECTING ROD
Unit: mm (in)
*: After installing in connecting rod
CRANKSHAFT
Unit: mm (in) Center distanceQR20DE 152.85 - 152.95 (6.018 - 6.022)
QR25DE 143.00 - 143.10 (5.630 - 5.634)
Bend [per 100 (3.94)] Limit 0.15 (0.0059)
Torsion [per 100 (3.94)] Limit 0.30 (0.0118)
Connecting rod bushing inner diameter*Grade No. 0 20.000 - 20.006 (0.7874 - 0.7876)
Grade No. 1 20.006 - 20.012 (0.7876 - 0.7879)
Side clearanceStandard 0.20 - 0.35 (0.0079 - 0.0138)
Limit 0.50 (0.0197)
Connecting rod big end diameterGrade No. 0
Grade No. 1
Grade No. 2
Grade No. 3
Grade No. 4
Grade No. 5
Grade No. 6
Grade No. 7
Grade No. 8
Grade No. 9
Grade No. A
Grade No. B
Grade No. C48.000 - 48.001 (1.8898 - 1.8898)
48.001 - 48.002 (1.8898 - 1.8898)
48.002 - 48.003 (1.8898 - 1.8899)
48.003 - 48.004 (1.8899 - 1.8899)
48.004 - 48.005 (1.8899 - 1.8900)
48.005 - 48.006 (1.8900 - 1.8900)
48.006 - 48.007 (1.8900 - 1.8900)
48.007 - 48.008 (1.8900 - 1.8901)
48.008 - 48.009 (1.8901- 1.8901)
48.009 - 48.010 (1.8901- 1.8902)
48.010 - 48.011 (1.8902 - 1.8902)
48.011 - 48.012 (1.8902 - 1.8902)
48.012 - 48.013 (1.8902 - 1.8903)
Center distance “r” QR20DE 40.11 - 40.19 (1.5791 - 1.5823)
QR25DE 49.96 - 50.04 (1.9669 - 1.9701)
Out-of-round (Difference between “X” and “Y”) Limit 0.005 (0.0002)
Taper (Difference between “A” and “B”) Limit 0.005 (0.0002)
Runout [TIR*] LimitQR20DE 0.03 (0.0012)
QR25DE 0.05 (0.0020)
Crankshaft end playStandard 0.10 - 0.26 (0.0039 - 0.0102)
Limit 0.30 (0.0118)
SEM645SBIA0535E

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SERVICE DATA AND SPECIFICATIONS (SDS)

MAIN BEARING
Unit: mm (in)
Undersize
Unit: mm (in)
Bearing Oil Clearance
Unit: mm (in) Grade number Thickness Identification color Remarks
0 1.973 - 1.976 (0.0777 - 0.0778) Black
Grade and color are the same
for upper and lower bearings. 1 1.976 - 1.979 (0.0778 - 0.0779) Brown
2 1.979 - 1.982 (0.0779 - 0.0780) Green
3 1.982 - 1.985 (0.0780 - 0.0781) Yellow
4 1.985 - 1.988 (0.0781 - 0.0783) Blue
5 1.988 - 1.991 (0.0783 - 0.0784) Pink
6 1.991 - 1.994 (0.0784 - 0.0785) Purple
7 1.994 - 1.997 (0.0785 - 0.0786) White
01UPR 1.973 - 1.976 (0.0777 - 0.0778) Black
Grade and color are different
for upper and lower bearings. LWR 1.976 - 1.979 (0.0778 - 0.0779) Brown
12UPR 1.976 - 1.979 (0.0778 - 0.0779) Brown
LWR 1.979 - 1.982 (0.0779 - 0.0780) Green
23UPR 1.979 - 1.982 (0.0779 - 0.0780) Green
LWR 1.982 - 1.985 (0.0780 - 0.0781) Yellow
34UPR 1.982 - 1.985 (0.0780 - 0.0781) Yellow
LWR 1.985 - 1.988 (0.0781 - 0.0783) Blue
45UPR 1.985 - 1.988 (0.0781 - 0.0783) Blue
LWR 1.988 - 1.991 (0.0783 - 0.0784) Pink
56UPR 1.988 - 1.991 (0.0783 - 0.0784) Pink
LWR 1.991 - 1.994 (0.0784 - 0.0785) Purple
67UPR 1.991 - 1.994 (0.0784 - 0.0785) Purple
LWR 1.994 - 1.997 (0.0785 - 0.0786) White
SEM685D
Item Thickness Main journal diameter
US 0.25 (0.0098) 2.106 - 2.114 (0.0829 - 0.0832) Grind so that bearing clearance is the specified value.
Main bearing oil clearanceStandardNo. 1, 3 and 5 0.012 - 0.022 (0.0005 - 0.0009)
No. 2 and 4 0.018 - 0.028 (0.0007 - 0.0011)
Limit 0.1 (0.004)

SERVICE DATA AND SPECIFICATIONS (SDS)
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CONNECTING ROD BEARING
Undersize
Unit: mm (in)
Bearing Oil Clearance
Unit: mm (in)
Tightening TorqueEBS00KNY
Unit: N·m (kg-m, ft-lb)
Unit: N·m (kg-m, in-lb)*2
Grade number Thickness mm (in) Identification color
0 1.495 - 1.499 (0.0589 - 0.0590) Black
1 1.499 - 1.503 (0.0590 - 0.0592) Brown
2 1.503 - 1.507 (0.0592 - 0.0593) Green
3 1.507 - 1.511(0.0593 - 0.0595) Yellow
Item Thickness Crank pin journal diameter
US 0.25 (0.0098) 1.624 - 1.632 (0.0639 - 0.0643) Grind so that bearing clearance is the specified value.
Connecting rod bearing oil clearanceStandard 0.028 - 0.045 (0.0011 - 0.0018)
Limit 0.10 (0.0039)
*1: Parts to be tightened in particular orders.
1)-: Order of tightening when tightening two or more times separately.
Drive belt auto-tensioner 21.6 (2.2, 16)
Mass air flow sensor
3.8 (0.39, 34) *
2
Resonator
3.8 (0.39, 34)*2
Air cleaner case lower
3.8 (0.39, 34)*2
*1 Intake manifold19.6 (2.0, 14)
Intake manifold collector (QR25DE) 19.6 (2.0, 14)
Intake manifold support (QR20DE) 19.6 (2.0, 14)
Intake manifold support (QR25DE) M6 bolt
8.83 (0.90, 78) *
2
M10 bolt 46.6 (4.8, 34)
Intake manifold rear support (QR25DE) 19.6 (2.0, 14)
Electric throttle control actuator
8.43 (0.86, 75) *
2
EVAP canister purge volume control solenoid valve
5.1 (0.52, 45) *2
*1 Exhaust manifold and three way catalyst assembly 41.7 (4.3, 31)
Exhaust manifold covers (upper and lower)
5.8 (0.59, 51) *
2
Three way catalyst cover
5.8 (0.59, 51) *2
Heated oxygen sensor 1 45 (4.6, 33)
Heated oxygen sensor 2 45 (4.6, 33)
*1 Oil pan upper M6 bolt
8.8 (0.90, 78) *
2
M8 bolt 21.6 (2.2, 16)
Oil pan upper to transaxle joint bolts 42.7 (4.4, 31)
*1 Oil pan lower
6.9 (0.70, 61) *
2
Oil pan drain plug34.3 (3.5, 25)
Rear plate cover
6.9 (0.70, 61) *
2
Oil level gauge guide 21.6 (2.2, 16)