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Home >> Infiniti >> 2012 >> EX35 Base, AWD >> Repair and Diagnosis >> Engine Mechanical >> Engine Mechanical System >> Service Data And Specifications (SDS) >> Service Data And Specifications (SDS) >> Cylinder Head >> Valve Seat

Valve Seat

Unit: mm (in)
G08193522
Items Standard Oversize (Service) [0.5 (0.02)]
Cylinder head seat recess diameter "D" Intake 38.000 - 38.016 (1.4961 - 1.4967) 38.500 - 38.516 (1.5157 - 1.5164)
Exhaust 31.600 - 31.616 (1.2441 - 1.2447) 32.100 - 32.116 (1.2638 - 1.2644)
Valve seat outer diameter "d" 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)
Diameter "d1"(1) Intake 34.6 (1.362)
Exhaust 27.7 (1.091)
Diameter "d2"(2) Intake 35.9 - 36.4 (1.413 - 1.433)
Exhaust 29.3 - 29.8 (1.154 - 1.173)
Angle "α1" Intake 60°
Exhaust 60°
Angle "α2" Intake 88°45' - 90°15'
Exhaust 88°45' - 90°15'
Angle "α3" Intake 120°
Exhaust 120°
Contacting width "W"(3) Intake 1.0 - 1.4 (0.039 - 0.055)
Exhaust 1.2 - 1.6 (0.047 - 0.063)
Height "h" Intake 5.9 - 6.0 (0.232 - 0.236) 5.05 - 5.15 (0.1988 - 0.2028)
Exhaust 5.9 - 6.0 (0.232 - 0.236) 4.95 - 5.05 (0.1949 - 0.1988)
Depth "H" 6.0 (0.236)
(1) Diameter made by intersection point of conic angles "α1" and "α2"
(2) Diameter made by intersection point of conic angles "α2" and "α3"
(3) Machining data