Nissan Altima L32. Instruction — part 641
EM-100
< SERVICE DATA AND SPECIFICATIONS (SDS)
[QR25DE]
SERVICE DATA AND SPECIFICATIONS (SDS)
CYLINDER HEAD
Unit: mm. (in)
VALVE
Valve Dimensions
Unit: mm. (in)
Valve Clearance
Unit: mm. (in)
* Approximately 80
°C (176°F)
Available Valve Lifter
Description
Limit
Head surface distortion
0.1 (0.004)
Description
Standard
Spark plug tube installation height
41.7 (1.642)
PBIC0283E
Valve head diameter (D)
Intake
35.5 - 35.8 (1.398 - 1.409)
Exhaust
30.3 - 30.6 (1.193 - 1.205)
Valve length (L)
Intake
96.84 (3.8136)
Exhaust
97.9 (3.8553)
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
1.08 (0.0425)
Exhaust
1.38 (0.0543)
SEM188
Cold
Hot*
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)
SERVICE DATA AND SPECIFICATIONS (SDS)
EM-101
< SERVICE DATA AND SPECIFICATIONS (SDS)
[QR25DE]
C
D
E
F
G
H
I
J
K
L
M
A
EM
N
P
O
Valve Spring
Thickness mm. (in)
Identification mark (Stamp)
7.88 (0.310)
788U
7.90 (0.311)
790U
7.92 (0.312)
792U
7.94 (0.313)
794U
7.96 (0.313)
796U
7.98 (0.314)
798U
8.00 (0.315)
800U
8.02 (0.316)
802U
8.04 (0.317)
804U
8.06 (0.317)
806U
8.08 (0.318)
808U
8.10 (0.319)
810U
8.12 (0.320)
812U
8.14 (0.320)
814U
8.16 (0.321)
816U
8.18 (0.322)
818U
8.20 (0.323)
820U
8.22 (0.324)
822U
8.24 (0.324)
824U
8.26 (0.325)
826U
8.28 (0.326)
828U
8.30 (0.327)
830U
8.32 (0.328)
832U
8.34 (0.328)
834U
8.36 (0.329)
836U
8.38 (0.330)
838U
KBIA0119E
Free height standard
mm. (in)
Intake
43.72 - 43.92 (1.7213 - 1.7291)
Exhaust
45.29 - 45.49 (1.7831 - 1.7909)
Pressure standard
N (kg- lb.) at height mm. (in)
Intake and Exhaust
151 - 175 (15.4 - 17.8, 34 - 39) at 35.30 (1.390)
Out-of-square mm.
(in)
1.9 (0.0748)
Installation height mm. (in)
Intake
35.30 (1.390)
Exhaust
35.30 (1.390)
EM-102
< SERVICE DATA AND SPECIFICATIONS (SDS)
[QR25DE]
SERVICE DATA AND SPECIFICATIONS (SDS)
Valve Lifter
Unit: mm. (in)
Valve Oil Seal
Unit: mm. (in)
Valve Guide
Unit: mm. (in)
Valve Seat
Installation load N (kg - f, lb. - f)
Intake
151 - 175 (15.4 - 17.8, 34 - 39)
Exhaust
151 - 175 (15.4 - 17.8, 34 - 39)
Height during valve open mm. (in)
Intake
25.30 (0.9961)
Exhaust
26.76 (1.0535)
Load with valve open N (kg-f, lb-f)
Intake
351 - 394 (35.8 - 40.2, 79 - 89)
Exhaust
318 - 362 (32.4 - 36.9, 72 - 81)
Description
Standard
Valve lifter outer diameter
33.977 - 33.987 (1.3377 - 1.3381)
Valve lifter bore inner diameter
34.000 - 34.021 (1.3386 - 1.3394)
Clearance between lifter and lifter guide
0.013 - 0.044 (0.0005 - 0.0017)
Description
Standard
Valve oil seal installation height (A)
12.1 (0.476)
Description
Standard
Service
Valve guide
Outer 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)
Standard
Valve guide clearance (Stan-
dard)
Intake
0.020 - 0.053 (0.0008 - 0.0021)
Exhaust
0.030 - 0.063 (0.0012 - 0.0025)
Valve guide clearance (Limit)
Intake
0.08 (0.003)
Exhaust
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-103
< SERVICE DATA AND SPECIFICATIONS (SDS)
[QR25DE]
C
D
E
F
G
H
I
J
K
L
M
A
EM
N
P
O
Unit: mm. (in)
*1 Machining data
CAMSHAFT AND CAMSHAFT BEARING
Unit: mm. (in)
Description
Standard
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 interference fit
Intake
0.081 - 0.113 (0.0032 - 0.0044)
Exhaust
0.084 - 0.116 (0.0033 - 0.0046)
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)
Diameter (d1)
Intake
33.5 (1.319)
Exhaust
28.0 (1.102)
Diameter (d2)
Intake
34.8 - 35.3 (1.370 - 1.390)
Exhaust
29.6 - 30.1 (1.165 - 1.185)
Angle (
α1)
Intake
60
°
Exhaust
60
°
Angle (
α2)
Intake
88
° 46' - 90° 14'
Exhaust
88
° 46' - 90° 14'
Angle (
α3)
Intake
120
°
Exhaust
120
°
Contacting width (W)*1
Intake
0.99 - 1.35 (0.0390 - 0.0531)
Exhaust
1.19 - 1.55 (0.0469 - 0.0610)
PBIC2745E
Standard
Camshaft runout [TIR*]
Less than 0.04 (0.0016)
SEM671
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст