Nissan Maxima. Manual — part 561
EM-132
< SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
*: Always check with the Parts Department for the latest parts information.
Cylinder Head
INFOID:0000000009466060
CYLINDER HEAD
Unit: mm (in)
VALVE DIMENSIONS
820U
8.20 (0.3228)
822U
8.22 (0.3236)
824U
8.24 (0.3244)
826U
8.26 (0.3252)
828U
8.28 (0.3260)
830U
8.30 (0.3268)
832U
8.32 (0.3276)
834U
8.34 (0.3283)
836U
8.36 (0.3291)
838U
8.38 (0.3299)
840U
8.40 (0.3307)
Identification (stamped) mark*
Thickness
SEM758G
Items
Standard
Limit
Head surface distortion
Less than 0.03 (0.0012)
0.1 (0.004)
Normal cylinder head height “H”
126.3 - 126.5 (4.97 - 4.98)
—
Spark plug tube installation height
37.7 - 39.1 (1.484 - 1.539)
—
PBIC0924E
SERVICE DATA AND SPECIFICATIONS (SDS)
EM-133
< SERVICE DATA AND SPECIFICATIONS (SDS)
C
D
E
F
G
H
I
J
K
L
M
A
EM
N
P
O
Unit: mm (in)
VALVE OIL SEAL
Unit: mm (in)
VALVE GUIDE
Unit: mm (in)
Valve head diameter “D”
Intake
36.6 - 36.9 (1.441 - 1.453)
Exhaust
30.2 - 30.5 (1.189 - 1.201)
Valve length “L”
Intake
97.13 (3.8240)
Exhaust
94.67 (3.7272)
Valve stem diameter “d”
Intake
5.970 - 5.980 (0.2350 - 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
1.15 - 1.45 (0.0453 - 0.0571)
Exhaust
1.45 - 1.75 (0.0571 - 0.0689)
Valve margin “T” limit
More than 0.5 (0.020)
Valve stem end surface grinding limit
Less than 0.2 (0.008)
SEM188
Description
Standard
Valve oil seal installation height
14.3 - 14.9 (0.563 - 0.587)
Items
Standard
Oversize (Service) [0.2 (0.008)]
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)
Items
Standard
Limit
SEM950E
EM-134
< SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
VALVE SEAT
Unit: mm (in)
*:Machining data
Valve guide clearance
Intake
0.020 - 0.053 (0.0008 - 0.0021)
0.08 (0.0031)
Exhaust
0.040 - 0.073 (0.0016 - 0.0029)
0.01 (0.004)
Valve deflection
Intake
—
0.24 (0.0094)
Exhaust
—
0.28 (0.0110)
Projection length “L”
12.6 - 12.8 (0.496 - 0.504)
Items
Standard
Oversize (Service) [0.5 (0.02)]
Cylinder head seat recess diameter “D”
Intake (A)
38.000 - 38.016 (1.4961 - 1.4967)
38.500 - 38.516 (1.5157 - 1.5164)
Exhaust (B)
31.600 - 31.616 (1.2441 - 1.2447)
32.100 - 32.116 (1.2638 - 1.2644)
Valve seat outer diameter
Intake
38.097 - 38.113 (1.4999 - 1.5005)
38.597 - 38.613 (1.5196 - 1.5202)
Exhaust
31.680 - 31.696 (1.2472 - 1.2479)
32.180 - 32.196 (1.2669 - 1.2676)
Valve seat interference fit
Intake
0.081 - 0.113 (0.0032 - 0.0044)
Exhaust
0.064 - 0.096 (0.0025 - 0.0038)
Height “h”
Intake (A)
5.9 - 6.0 (0.232 - 0.236)
5.0 - 5.1 (0.197 - 0.201)
Exhaust (B)
5.9 - 6.0 (0.232 - 0.236)
4.9 - 5.0 (0.193 - 0.197)
Contacting width “W”*
Intake (A)
1.18 - 1.22 (0.0465 - 0.0480)
Exhaust (B)
1.38 - 1.42 (0.0543 - 0.0559)
Cylinder head seat recess depth (H)
6.0 (0.236)
Depth “L”
Intake (A)
41.16 - 41.76 (1.6205 - 1.6441)
Exhaust (B)
41.09 - 41.69 (1.6177 - 1.6413)
AWBIA0033GB
SEM621F
SERVICE DATA AND SPECIFICATIONS (SDS)
EM-135
< SERVICE DATA AND SPECIFICATIONS (SDS)
C
D
E
F
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M
A
EM
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VALVE SPRING
Unit: mm (in)
Cylinder Block
INFOID:0000000009466061
CYLINDER BLOCK
Unit: mm (in)
Items
Standard
Free height
47.07 mm (1.8531 in)
Installation height
37.00 mm (1.4567 in)
Installation load
166 - 188 N (16.9 - 19.2 kg, 37 - 42 lb)
Height during valve open
27.20 mm (1.0709 in)
Load with valve open
373 - 421 N (38.0 - 42.9 kg, 84 - 95 lb)
Items
Limit
Squareness
2.0 (0.079)
Surface distortion
Standard
Less than 0.03 (0.0012)
Limit
0.10 (0.0039)
Main bearing housing inner diameter
Standard
63.993 - 64.017 (2.5194 - 2.5203)
Cylinder bore
Inner diameter
Standard*
Grade No. 1
95.500 - 95.510 (3.7598 - 3.7602)
Grade No. 2
95.510 - 95.520 (3.7602 - 3.7606)
Grade No. 3
95.520 - 95.530 (3.7606 - 3.7610)
Wear limit
0.20 (0.0079)
Out-of-round
Limit
0.015 (0.0006)
Taper (Difference between A and C)
0.015 (0.0006)
JPBIA2238GB
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