Infiniti Q45. Manual — part 573
CYLINDER BLOCK
EM-109
C
D
E
F
G
H
I
J
K
L
M
A
EM
DRIVE PLATE
●
Check drive plate and signal plate for deformation or cracks.
CAUTION:
●
Do not disassemble drive plate.
●
Do not place drive plate with signal plate facing down.
●
When handling signal plate, take care not to damage or
scratch it.
●
Handle signal plate in a manner that prevents it from
becoming magnetized.
●
If anything is found, replace drive plate.
PBIC2367E
EM-110
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
PFP:00030
Standard and Limit
NBS001P5
GENERAL SPECIFICATIONS
DRIVE BELTS
INTAKE MANIFOLD AND EXHAUST MANIFOLD
Unit: mm (in)
Cylinder arrangement
V-8
Displacement
cm
3
(cu in)
4,494 (274.22)
Bore and stroke
mm (in)
93 x 82.7 (3.66 x 3.256)
Valve arrangement
DOHC
Firing order
1-8-7-3-6-5-4-2
Number of piston rings
Compression
2
engine oil
1
Number of main bearings
5
Compression ratio
10.5
Compression pressure
kPa (kg/cm
2
, psi)/300 rpm
Standard
1,320 (13.5, 191)
Minimum
1,130 (11.5, 164)
Differential limit
between cylinders
98 (1.0, 14)
Cylinder number
Valve timing
Unit: degree
a
b
c
d
e
f
228
240
0
60
0
48
SEM957C
PBIC0187E
Tension of drive belts
Auto adjustment by auto tensioner
Item
Limit
Surface distortion
Intake manifold (upper and lower)
0.1 (0.004)
Exhaust manifold
0.3 (0.012)
SERVICE DATA AND SPECIFICATIONS (SDS)
EM-111
C
D
E
F
G
H
I
J
K
L
M
A
EM
SPARK PLUG (PLATINUM-TIPPED TYPE)
VALVE
Valve Dimensions
Unit: mm (in)
Make
NGK
Type
Standard
PLFR5A-11
Hot
PLFR4A-11
Cold
PLFR6A-11
Plug gap (Nominal)
1.1 mm (0.043 in)
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
96.57 (3.8020)
Exhaust
94.50 (3.720)
Valve stem diameter “d”
Intake
5.972 - 5.980 (0.2351 - 0.2354)
Exhaust
5.962 - 5.970 (0.2347 - 0.2350)
Valve seat angle “
α
”
Intake
45 degrees 15
′
- 45 degrees 45
′
Exhaust
Valve margin “T”
Intake
1.15 - 1.45 (0.0453 - 0.0571)
Exhaust
1.85 - 2.50 (0.0728 - 0.0846)
SEM188
EM-112
SERVICE DATA AND SPECIFICATIONS (SDS)
Valve Clearance
Unit: mm (in)
*: Approximately 80
°
C (176
°
F)
Available Shims
Items
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)
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
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
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