Usage:
Valve timing (when valve is off seat) ... .075 in.1,905 mm
Exhaust opening (before bottom center) ... 18° 24'18° 24'
Exhaust closing (before top center) ... 2° 55'2° 55'
Inlet opening (after top center) ... 1° 14'1° 14'
Inlet closing (after bottom center) ... 13° 34'13° 34'
1 Spring-valve ... 2S42132S4213
Length-test force applied ... 1.95 in.49,53 mm
Test force ... 55.0±3.5 lbs.24,95±1,59 kg
Free length after test ... 2.31 in.58,67 mm
Outside diameter ... 1.476 in.37,48 mm
2 Diameter-stem ... .3720±.0005 in.9,449±0,013 mm
Clearance-in guide ... .0031±.0012 in.0,078±0,030 mm
Maximum permissible clearance ... .009 in.0,228 mm
3 Thickness-inlet valve lip (minimum) ... .0716 in.1,819 mm
Thickness-exhaust valve lip (minimum) ... .0720 in.1,829 mm
4 Valve face angle ... 441/4°441/4°
5 Diameter-inlet valve head ... 1.771±.005 in.44,98±0,127 mm
Diameter-exhaust valve head ... 1.646±.005 in.41,808±0,127 mm