Infiniti I30 (A33). Manual — part 488
SEM005G
REPLACING PILOT CONVERTER
NHEM0028S04
1.
Remove pilot converter using tool or suitable tool.
SEM537E
2.
Install pilot converter as shown.
GI
MA
LC
EC
FE
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
CYLINDER BLOCK
Assembly (Cont’d)
EM-71
General Specifications
NHEM0029
Cylinder arrangement
V-6
Displacement
cm
3
(cu in)
2,988 (182.33)
Bore and stroke
mm (in)
93 x 73.3 (3.66 x 2.886)
Valve arrangement
DOHC
Firing order
1-2-3-4-5-6
Number of piston rings
Compression
2
Oil
1
Number of main bearings
4
Compression ratio
10.0
Compression Pressure
NHEM0030
Unit: kPa (kg/cm
2
, psi)/300 rpm
Compression pressure
Standard
1,275 (13.0, 185)
Minimum
981 (10.0, 142)
Differential limit between cylinders
98 (1.0, 14)
Cylinder number
SEM713A
Cylinder Head
NHEM0031
Unit: mm (in)
Standard
Limit
Head surface distortion
Less than 0.03 (0.0012)
0.1 (0.004)
SEM949E
SERVICE DATA AND SPECIFICATIONS (SDS)
General Specifications
EM-72
Valve
NHEM0032
VALVE
NHEM0032S01
Unit: mm (in)
SEM188
Valve head diameter “D”
Intake
36.0 - 36.3 (1.417 - 1.429)
Exhaust
31.2 - 31.5 (1.228 - 1.240)
Valve length “L”
Intake
97.32 - 97.82 (3.8315 - 3.8512)
Exhaust
94.85 - 95.35 (3.7342 - 3.7539)
Valve stem diameter “d”
Intake
5.965 - 5.980 (0.2348 - 0.2354)
Exhaust
5.945 - 5.960 (0.2341 - 0.2346)
Valve seat angle “
α
”
Intake
45°15
′
- 45°45
′
Exhaust
Valve margin “T”
Intake
0.95 - 1.25 (0.0374 - 0.0492)
Exhaust
1.15 - 1.45 (0.0453 - 0.0571)
Valve margin “T” limit
More than 0.5 (0.020)
Valve stem end surface grinding limit
Less than 0.2 (0.008)
VALVE CLEARANCE
NHEM0032S02
Unit: mm (in)
Cold
Hot* (reference data)
Intake
0.26 - 0.34 (0.010 - 0.013)
0.304 - 0.416 (0.012 - 0.016)
Exhaust
0.29 - 0.37 (0.011 - 0.015)
0.308 - 0.432 (0.012 - 0.017)
*: Approximately 80°C (176°F)
AVAILABLE SHIMS
NHEM0032S03
Thickness
mm (in)
Identification mark
2.32 (0.0913)
232
2.33 (0.0917)
233
2.34 (0.0921)
234
2.35 (0.0925)
235
2.36 (0.0929)
236
2.37 (0.0933)
237
2.38 (0.0937)
238
2.39 (0.0941)
239
2.40 (0.0945)
240
2.41 (0.0949)
241
GI
MA
LC
EC
FE
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
SERVICE DATA AND SPECIFICATIONS (SDS)
Valve
EM-73
Thickness
mm (in)
Identification mark
2.42 (0.0953)
242
2.43 (0.0957)
243
2.44 (0.0961)
244
2.45 (0.0965)
245
2.46 (0.0969)
246
2.47 (0.0972)
247
2.48 (0.0976)
248
2.49 (0.0980)
249
2.50 (0.0984)
250
2.51 (0.0988)
251
2.52 (0.0992)
252
2.53 (0.0996)
253
2.54 (0.1000)
254
2.55 (0.1004)
255
2.56 (0.1008)
256
2.57 (0.1012)
257
2.58 (0.1016)
258
2.59 (0.1020)
259
2.60 (0.1024)
260
2.61 (0.1028)
261
2.62 (0.1031)
262
2.63 (0.1035)
263
2.64 (0.1039)
264
2.65 (0.1043)
265
2.66 (0.1047)
266
2.67 (0.1051)
267
2.68 (0.1055)
268
2.69 (0.1059)
269
2.70 (0.1063)
270
2.71 (0.1067)
271
2.72 (0.1071)
272
2.73 (0.1075)
273
2.74 (0.1079)
274
2.75 (0.1083)
275
2.76 (0.1087)
276
2.77 (0.1091)
277
2.78 (0.1094)
278
2.79 (0.1098)
279
2.80 (0.1102)
280
2.81 (0.1106)
281
SERVICE DATA AND SPECIFICATIONS (SDS)
Valve (Cont’d)
EM-74
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