NISSAN PRIMERA 1999 Electronic Repair Manual

Thickness mm (in) Identification mark
2.34 (0.0921) 2.34
2.36 (0.0929) 2.36
2.38 (0.0937) 2.38
2.40 (0.0945) 2.40
2.42 (0.0953) 2.42
2.44 (0.0961) 2.44
2.46 (0.0969) 2.46
2.48 (0.0976) 2.48
2.50 (0.0984) 2.50
2.52 (0.0992) 2.52
2.54 (0.1000) 2.54
2.56 (0.1008) 2.56
2.58 (0.1016) 2.58
2.60 (0.1024) 2.60
2.62 (0.1031) 2.62
2.64 (0.1039) 2.64
2.66 (0.1047) 2.66
2.68 (0.1055) 2.68
2.70 (0.1063) 2.70
2.72 (0.1071) 2.72
2.74 (0.1079) 2.74
2.76 (0.1087) 2.76
2.78 (0.1094) 2.78
2.80 (0.1102) 2.80
2.82 (0.1110) 2.82
2.84 (0.1118) 2.84
2.86 (0.1126) 2.86
2.88 (0.1134) 2.88
2.90 (0.1142) 2.90
2.92 (0.1150) 2.92
2.94 (0.1157) 2.94
2.96 (0.1165) 2.96
2.98 (0.1173) 2.98
SERVICE DATA AND SPECIFICATIONS (SDS)QG
Valve (Cont'd)
EM-181

VA LV E S E ATNCEM0031S05Unit: mm (in)
AEM236 ShimIndicate
T
1= 2.800 mm
(0.1102 in)
SEM573DASEM574DA
Dia. QG Dia. QG
A 27.8 - 28.0 (1.094 - 1.102) dia. E 24.5 - 24.7 (0.965 - 0.972)
B 29.5 - 29.7 (1.161 - 1.169) dia. F 26.2 - 26.4 (1.031 - 1.039)
C 31.9 - 32.1 (1.256 - 1.264) G 26.500 - 26.516 (1.0433 - 1.0439)
D 31.500 - 31.516 (1.2402 - 1.2408)
INTAKE
Standard
1.06 - 1.34
(0.0417 - 0.0528)
5.9 (0.232)
Oversize
1.06 - 1.34
(0.0417 - 0.0528)
5.9 (0.232)
Cylinder head machining dataEXHAUST
Standard
1.20 - 1.68
(0.0472 - 0.0661)
5.65 (0.2224)
Oversize
1.20 - 1.68
(0.0472 - 0.0661)
5.65 (0.2224)
Cylinder head machining data
SERVICE DATA AND SPECIFICATIONS (SDS)QG
Valve (Cont'd)
EM-182

VALVE SEAT RESURFACE LIMITNCEM0031S08Unit: mm (in)
AEM343
Depth (L)Intake 35.95 - 36.55 (1.4154 - 1.4390)
Exhaust 35.92 - 36.52 (1.4142 - 1.4378)
Camshaft and Camshaft BearingNCEM0032Unit: mm (in)
Engine model QG16DE QG18DE
Cam height ªAºIntake 40.220 - 40.410 (1.5835 - 1.5909) 40.610 - 40.800 (1.5988 - 1.6063)
Exhaust 40.056 - 40.245 (1.5770 - 1.5844)
Cam wear limit0.20 (0.0079)
EM671
Standard Limit
Camshaft journal to bearing clearance 0.045 - 0.086 (0.0018 - 0.0034) 0.15 (0.0059)
Inner diameter of
camshaft bearingNo. 1 28.000 - 28.021 (1.1024 - 1.1032)
Ð
No. 2 to No. 5 24.000 - 24.021 (0.9449 - 0.9457)
Outer diameter of
camshaft journalNo. 1 27.935 - 27.955 (1.0998 - 1.1006)
Ð
No. 2 to No. 5 23.935 - 23.955 (0.9423 - 0.9431)
Camshaft runout [TIR*] Less than 0.02 (0.0008) 0.1 (0.004)
Camshaft end play 0.115 - 0.188 (0.0045 - 0.0074) 0.20 (0.0079)
*Total indicator reading
SERVICE DATA AND SPECIFICATIONS (SDS)QG
Valve (Cont'd)
EM-183

Cylinder BlockNCEM0033Unit: mm (in)
SEM171D Crankshaft center
20 (0.79)
60 (2.36)
100 (3.94)
QG16DE QG18DE
Limit
Standard
Surface flatness Less than 0.03 (0.0012) 0.1 (0.004)
Height ªHº (nominal) 213.95 - 214.05 (8.4232 - 8.4271) Ð
Cylinder bore
inner diameterStandardGrade No. 176.000 - 76.0610
(2.9921 - 2.9925)80.000 - 80.010
(3.1496 - 3.1500)
0.2 (0.008) Grade No. 276.010 - 76.020
(2.7957 - 2.7961)80.010 - 80.020
(3.1500 - 3.1504)
Grade No. 376.020 - 76.030
(2.7961 - 2.9933)80.020 - 80.030
(3.1504 - 3.1508)
Out-of-round (X þ Y) Less than 0.015 (0.0006) Ð
Taper (A þ B) Less than 0.01 (0.0004) Ð
Difference in inner diameter between cylinders 0.05 (0.0020) 0.2 (0.008)
SERVICE DATA AND SPECIFICATIONS (SDS)QG
Cylinder Block
EM-184

Piston, Piston Ring and Piston PinNCEM0034PISTONNCEM0034S01Unit: mm (in)
SEM882E
QG16DE QG18DE
Piston skirt diameter ªAº StandardGrade No. 175.975 - 75.985
(2.9911 - 2.9915)79.965 - 79.975
(3.1482 - 3.1486)
Grade No. 275.985 - 75.995
(2.9915 - 2.9919)79.975 - 79.985
(3.1486 - 3.1490)
Grade No. 375.995 - 76.005
(2.9919 - 2.9923)79.985 - 79.995
(3.1490 - 3.1494)
0.5 (0.002) oversize (service)76.475 - 76.505
(3.0108 - 3.0120)80.215 - 80.245
(3.1581 - 3.1592)
1.0 (0.039) oversize (service)76.975 - 77.005
(3.0305 - 3.0317)80.465 - 80.495
(3.1679 - 3.1691)
ªaº dimension44.5 (1.7520) 42.3 (1.665)
Piston pin hole inner diameter18.987 - 18.999
(0.7475 - 0.7080)18.993 - 19.005
(0.7478 - 0.7482)
Piston to bore clearance0.015 - 0.035
(0.0006 - 0.0014)0.025 - 0.045
(0.0010 - 0.0018)
PISTON RINGNCEM0034S02Unit: mm (in)
QG16DE QG18DE
Limit
Standard
Side clearanceTop 0.045 - 0.080 (0.0018 - 0.0031) 0.040 - 0.080 (0.0016 - 0.0031) 0.110 (0.0043)
2nd 0.030 - 0.070 (0.0012 - 0.0028) 0.100 (0.0039)
Oil 0.065 - 0.135 (0.0026 - 0.0053) 0.045 - 0.155 (0.0018 - 0.0061) Ð
End gapTop 0.20 - 0.30 (0.0079 - 0.0118) 0.53 (0.0209)
2nd 0.50 - 0.65 (0.0197 - 0.0256) 0.32 - 0.47 (0.0126 - 0.0185) 0.98 (0.0386)
Oil 0.20 - 0.60 (0.0079 - 0.0236) 0.95 (0.0374)
PISTON PINNCEM0034S03Unit: mm (in)
QG16DE QG18DE
Piston pin outer diameter 18.989 - 19.001 (0.7476 - 0.7481)
Piston pin to piston clearance þ0.004 to 0 (þ0.0002 to 0) 0.002 - 0.006 (0.0001 - 0.0002)
Piston pin to connecting rod bushing
clearanceStandard 0.005 - 0.017 (0.0002 - 0.0007)
Limit 0.023 (0.0009)
SERVICE DATA AND SPECIFICATIONS (SDS)QG
Piston, Piston Ring and Piston Pin
EM-185

Connecting RodNCEM0035Unit: mm (in)
Center distance140.45 - 140.55 (5.5295 - 5.5335)
Bend limit [per 100 (3.94)]0.15 (0.0059)
Torsion limit [per 100 (3.94)]0.3 (0.012)
Connecting rod bushing inner diameter* (small end) 19.000 - 19.012 (0.7480 - 0.7485)
Connecting rod big end inner diameter 43.000 - 43.013 (1.6929 - 1.6934)
Side clearanceStandard 0.200 - 0.470 (0.0079 - 0.0185)
Limit 0.5 (0.020)
*After installing in connecting rod
CrankshaftNCEM0036Unit: mm (in)
Main journal dia. ªDmºGrade No. 0 49.956 - 49.964 (1.9668 - 1.9671)
Grade No. 1 49.948 - 49.956 (1.9665 - 1.9668)
Grade No. 2 49.940 - 49.948 (1.9661 - 1.9665)
Pin journal dia. ªDpºGrade No. 0 39.968 - 39.974 (1.5735 - 1.5738)
Grade No. 1 39.962 - 39.968 (1.5733 - 1.5735)
Grade No. 2 39.956 - 39.962 (1.5731 - 1.5733)
Center distance ªrº43.95 - 44.05 (1.7303 - 1.7342)
Out-of-round (X þ Y)Standard Less than 0.003 (0.0001)
Limit Less than 0.005 (0.0002)
Taper (A þ B)Standard Less than 0.004 (0.0002)
Limit Less than 0.005 (0.0002)
Runout [TIR*]Standard Less than 0.04 (0.0016)
Limit Less than 0.05 (0.0020)
Free end playStandard 0.060 - 0.260 (0.0024 - 0.0102)
Limit 0.3 (0.012)
*: Total indicator reading
Main BearingNCEM0037STANDARDNCEM0037S01
Grade No. Thickness ªTº mm (in) Identification color
0 1.826 - 1.830 (0.0719 - 0.0720) Black
1 1.830 - 1.834 (0.0720 - 0.0722) Red
2 1.834 - 1.838 (0.0722 - 0.0724) Green
3 1.838 - 1.842 (0.0724 - 0.0725) Yellow
4 1.842 - 1.846 (0.0725 - 0.0727) Blue
UNDERSIZENCEM0037S02Unit: mm (in)
Thickness ªTº
0.25 (0.0098) 1.960 - 1.964 (0.0772 - 0.0773)
0.50 (0.0197) 2.085 - 2.089 (0.0821 - 0.0822)
SERVICE DATA AND SPECIFICATIONS (SDS)QG
Connecting Rod
EM-186

Connecting Rod BearingNCEM0038STANDARD SIZENCEM0038S01Unit: mm (in)
Grade No. Thickness Identification color or number
0 1.503 - 1.506 (0.0592 - 0.0593) Ð
1 1.506 - 1.509 (0.0593 - 0.0594) Brown
2 1.509 - 1.512 (0.0594 - 0.0595) Green
UNDERSIZENCEM0038S02Unit: mm (in)
Grade No. Thickness Identification color or number
0.08 (0.0031) 1.542 - 1.546 (0.0607 - 0.0609) Ð
0.12 (0.0047) 1.562 - 1.566 (0.0615 - 0.0617) Ð
0.25 (0.0098) 1.627 - 1.631 (0.0641 - 0.0642) Ð
Bearing ClearanceNCEM0039Unit: mm (in)
Main bearing clearanceStandard 0.020 - 0.044 (0.0008 - 0.0017)
Limit 0.1 (0.004)
Connecting rod bearing clearanceStandard 0.014 - 0.039 (0.0006 - 0.0015)
Limit 0.1 (0.004)
Miscellaneous ComponentsNCEM0040Unit: mm (in)
Flywheel runout [TIR*]Less than 0.15 (0.0059)
Camshaft sprocket runout [TIR*] Less than 0.15 (0.0059)
*: Total indicator reading
SERVICE DATA AND SPECIFICATIONS (SDS)QG
Connecting Rod Bearing
EM-187

General Specifications
Cylinder arrangement In-line 4
Displacement cm
3(cu in) 1,998 (121.92)
Bore and stroke mm (in) 86 x 86 (3.39 x 3.39)
Valve arrangement DOHC
Firing order 1-3-4-2
Number of piston rings
Compression 2
Oil 1
Number of main bearings 5
Compression ratio 10.0
Valve timing
EM120Unit: degree
abcde f
SR20DE 232É 240É 6É 54É 3É 49É
Inspection and Adjustment
COMPRESSION PRESSURE
Unit: kPa (bar, kg/cm2, psi)/300 rpm
Standard1,275
(12.75, 13.0, 185)
Minimum1,079
(10.79, 11.0, 156)
Differential limit between cylin-
ders98
(0.98, 1.0, 14)
CYLINDER HEAD
Unit: mm (in)
Standard Limit
Head surface distortionLess than
0.03 (0.0012)0.1 (0.004)
SEM956C Nominal cylinder head height:
H = 136.9 - 137.1 mm (5.390 - 5.398 in)
SERVICE DATA AND SPECIFICATIONS (SDS)SR20DE
General Specifications
EM-188

VA LV E
Unit: mm (in)
SEM188
Valve head diameter ªDº
Intake 34.0 - 34.2 (1.339 - 1.346)
Exhaust 30.0 - 30.2 (1.181 - 1.189)
Valve length ªLº
Intake 98.17 - 98.63 (3.8650 - 3.8831)
Exhaust 99.09 - 99.55 (3.9012 - 3.9193)
Valve stem diameter ªdº
Intake 5.965 - 5.980 (0.2348 - 0.2354)
Exhaust 5.945 - 5.960 (0.2341 - 0.2346)
Valve seat angle ªaº
Intake
Exhaust45É15¢- 45É45¢
Valve margin ªTº
Intake 1.3 (0.051)
Exhaust 1.6 (0.063)
Valve margin ªTº limit More than 0.5 (0.020)
Valve stem end surface
grinding limitLess than 0.2 (0.008)
Valve clearance
Intake 0 (0)
Exhaust 0 (0)
Valve spring
Free height mm (in) 49.36 (1.9433)
Pressure
N (kg, lb) at height mm (in)
Standard569.00 - 641.57
(58.02 - 65.42, 127.93 - 144.25)
at 30.0 (1.181)
Limit549.2 (56.0, 123.5)
at 30.0 (1.181)
Out-of-square mm (in) Less than 2.2 (0.087)
Hydraulic lash adjuster (HLA)
Unit: mm (in)
HLA outer diameter16.980 - 16.993
(0.6685 - 0.6690)
HLA guide inner diameter17.000 - 17.020
(0.6693 - 0.6701)
Clearance between HLA and HLA guide0.007 - 0.040
(0.0003 - 0.0016)
Valve guide
Unit: mm (in)
NEM032
Standard Service
Valve guide
Outer
diameterIntake10.023 - 10.034
(0.3946 - 0.3950)10.223 - 10.234
(0.4025 - 0.4029)
Exhaust10.023 - 10.034
(0.3946 - 0.3950)10.223 - 10.234
(0.4025 - 0.4029)
Valve guide
Inner diam-
eter (Fin-
ished size)Intake6.000 - 6.018
(0.2362 - 0.2369)
Exhaust 6.000 - 6.018 (0.2362 - 0.2369)
Cylinder head
valve guide
hole diameterIntake9.975 - 9.996
(0.3927 - 0.3935)10.175 - 10.196
(0.4006 - 0.4014)
Exhaust9.975 - 9.996
(0.3927 - 0.3935)10.175 - 10.196
(0.4006 - 0.4014)
Interference fit of valve
guide0.027 - 0.059 (0.0011 - 0.0023)
Standard Limit
Stem to guide
clearanceIntake0.020 - 0.053
(0.0008 - 0.0021)0.08 (0.0031)
Exhaust0.040 - 0.073
(0.0016 - 0.0029)0.1 (0.004)
Valve deflection limit 0.2 (0.008)
Projection length ªLº 14.0 - 14.2 (0.551 - 0.559)
SERVICE DATA AND SPECIFICATIONS (SDS)SR20DE
Inspection and Adjustment (Cont'd)
EM-189

Valve seat
SR20DE engine
Unit: mm (in)
NEM212
Standard Service
Cylinder head seat recess diameter (D)In. 35.000 - 35.016 (1.3780 - 1.3786) 35.500 - 35.516 (1.3976 - 1.3983)
Ex. 31.000 - 31.016 (1.2205 - 1.2211) 31.500 - 31.516 (1.2402 - 1.2408)
Valve seat interference fitIn. 0.064 - 0.096 (0.0025 - 0.0038)
Ex. 0.064 - 0.096 (0.0025 - 0.0038)
Valve seat outer diameter (d)In. 35.080 - 35.096 (1.3811 - 1.3817) 35.580 - 35.596 (1.4008 - 1.4014)
Ex. 31.080 - 31.096 (1.2236 - 1.2242) 31.580 - 31.596 (1.2433 - 1.2439)
Depth (H)In. 6.25 (0.2461)
Ex. 6.25 (0.2461)
Height (h)6.2 - 6.3 (0.244 - 0.248)
INTAKECylinder head
EXHAUST
Standard Standard
*29.35 - 29.65
(1.1555 - 1.1673)
*44É53¢- 45É07¢
*33.6 - 33.8
(1.323 - 1.331)
Contacting width (W): 1.385 - 1.401
(0.0545 - 0.0552)*44É53¢- 45É07¢
*29.4 -29.6 (1.157 - 1.165)
Contacting width (W): 1.385 - 1.401 (0.0545 - 0.0552)
Oversize
Oversize
*44É53¢- 45É07¢
*33.6 - 33.8
(1.323 - 1.331)
Contacting width (W): 1.385 - 1.401
(0.0545 - 0.0552)
:* Machining data*44É53¢- 45É07¢
*29.4 - 29.6 (1.157 - 1.165)
Contacting width (W): 1.385 - 1.401 (0.0545 - 0.0552)
SERVICE DATA AND SPECIFICATIONS (SDS)SR20DE
Inspection and Adjustment (Cont'd)
EM-190