Valve Seat
WARNING: This page is about a different car, the 2007 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
VALVE SEAT SPECIFICATIONS
| Unit: mm (in) |
|
|
| Items |
Standard |
Oversize [0.5 (0.02)] (Service) |
| Cylinder head seat recess diameter "D" |
Intake |
38.000 - 38.016 (1.4961 - 1.4967) |
38.500 - 38.516 (1.5157 - 1.5164) |
| Exhaust |
32.200 - 32.216 (1.2677 - 1.2683) |
32.700 - 32.716 (1.2874 - 1.2880) |
| Valve seat outer diameter "d" |
Intake |
38.097 - 38.113 (1.4999 - 1.5005) |
38.597 - 38.613 (1.5196 - 1.5202) |
| Exhaust |
32.280 - 32.296 (1.2709 - 1.2715) |
32.780 - 32.796 (1.2905 - 1.2912) |
| Valve seat interference fit |
Intake |
0.081 - 0.113 (0.0032 - 0.0044) |
| Exhaust |
0.064 - 0.096 (0.0025 - 0.0038) |
| Diameter "d1" |
Intake |
35 (1.38) |
| Exhaust |
28.7 (1.130) |
| Diameter "d2" |
Intake |
36.3 - 36.8 (1.429 - 1.449) |
| Exhaust |
30.3 - 30.8 (1.193 - 1.213) |
| 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" |
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) |