Service Data and Specifications (S.D.S.) - Inspection and Adjustment (Cont'd) (Valve seat)
EM-261spec tableInspection and Adjustment (Cont'd)
Valve seat
NOTE
Standard (Intake): seat angles 23°, 44°53' - 45°07', 50°; *29.35 - 29.65 (1.1555 - 1.1673); *31.4 - 31.6 (1.236 - 1.244); *33.6 - 33.8 (1.323 - 1.331); Contacting width (W): 1.4 - 1.7 (0.055 - 0.067). Standard (Exhaust): seat angles 44°53' - 45°07', 50°; *26.8 - 27.0 (1.055 - 1.063); *29.4 - 29.6 (1.157 - 1.165); Contacting width (W): 1.7 - 2.0 (0.067 - 0.079). Oversize (Intake): *31.4 - 31.6 (1.236 - 1.244); *33.6 - 33.8 (1.323 - 1.331); 44°53' - 45°07'; Contacting width (W): 1.4 - 1.7 (0.055 - 0.067). Oversize (Exhaust): *26.8 - 27.0 (1.055 - 1.063); *29.4 - 29.6 (1.157 - 1.165); 44°53' - 45°07'; Contacting width (W): 1.7 - 2.0 (0.067 - 0.079). *: Machining data.
Valve seat (Unit: mm (in))
Cylinder head seat recess diameter (D) - In.
Standard35.000 - 35.016 (1.3780 - 1.3786)
Service35.500 - 35.516 (1.3976 - 1.3983)
Cylinder head seat recess diameter (D) - Ex.
Standard31.000 - 31.016 (1.2205 - 1.2211)
Service31.500 - 31.516 (1.2402 - 1.2408)
Valve seat interference fit - In.
Standard0.064 - 0.096 (0.0025 - 0.0038)
Service0.064 - 0.096 (0.0025 - 0.0038)
Valve seat interference fit - Ex.
Standard0.064 - 0.096 (0.0025 - 0.0038)
Service0.064 - 0.096 (0.0025 - 0.0038)
Valve seat outer diameter (d) - In.
Standard35.080 - 35.096 (1.3811 - 1.3817)
Service35.580 - 35.596 (1.4008 - 1.4014)
Valve seat outer diameter (d) - Ex.
Standard31.080 - 31.096 (1.2236 - 1.2242)
Service31.580 - 31.596 (1.2433 - 1.2439)
Depth (H) - In.
Standard6.25 (0.2461)
Service6.25 (0.2461)
Depth (H) - Ex.
Standard6.25 (0.2461)
Service6.25 (0.2461)
Height (h) - In.
Standard6.2 - 6.3 (0.244 - 0.248)
Service
Height (h) - Ex.
Standard5.4 - 5.5 (0.213 - 0.217)
Service