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EM-120 < SERVICE DATA AND SPECIFICATIONS (SDS) [HR16DE] SERVICE DATA AND SPECIFICATIONS (SDS) * 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 VALVE SPRING Cylinder Block INFOID:0000000009444765 CYLINDER BLOCK Unit: mm (in) Angle “ α2” Intake 88 °45′ - 90°15′ Exhaust 88 °45′ - 90°15′ Angle “ α3” Intake 120 ° Exhaust 120 ° Contacting width “W”* 3 Intake 1.44 - 2.1 (0.0567 - .0827) Exhaust 1.1 - 1.9 (.0433 - .0748) or 0.9 - 2.1 (.0354 - .0827) Height “h” Intake 4.7 (0.185) 4.15 (0.163) Exhaust 6.0 (0.236) 5.43 (0.213) Depth “H” Intake 4.7 (0.185) Exhaust 6.0 (0.236) Free height 46.73 mm (1.8398 in) Installation height 32.40 mm (1.2756 in) Installation load 136 - 154 N (13.9 - 15.7 kg, 30.6 - 34.6 lb) Height during valve open 23.96 mm (0.9433 in) Load with valve open 242 - 272 N (24.7 - 27.7 kg, 54.4 - 61.1 lb) Surface distortion Limit 0.1 (0.004) Cylinder bore Inner diameter Standard 78.000 - 78.015 (3.0709 - 3.0715) Wear limit — Out-of-round (Difference between “X” and “Y”) Limit 0.015 (0.0006) Taper (Difference between “A” and “C”) 0.010 (0.0004) PBIC3924E |