DISC-THRUST 1776771 - Caterpillar

Illustration 1 g01445699Note: Apply clean 8T-9548 Oil to the inlet valve stems and to the exhaust valve stems prior to installation in the cylinder head. (A) Height to the step in the valve guide ... 20.0 0.5 mm (0.79 0.02 inch)
Illustration 2 g02745479
Inlet valve
(1) Inlet valve (B) Valve stem diameter ... 9.441 0.008 mm (0.3717 0.0003 inch) (C) Diameter of the valve head ... 44.50 0.13 mm (1.752 0.005 inch) (D) Valve face angle ... 60.75 0.25 degrees (E) Minimum valve stem diameter ... 9.309 mm (0.3665 inch) (F) Minimum valve lip thickness ... 3.50 0.20 mm (0.138 0.008 inch) (2) 224-4441 Spring Quantity ... 4Length under test force ... 50.47 mm (1.987 inch)Test force ... 160 13 N (36.0 2.9 lb)Approximate free length after test ... 64.1 mm (2.52 inch)Outside diameter ... 23.24 mm (0.915 inch)
Illustration 3 g02746141
Exhaust valve
(3) Exhaust valve (G) Valve stem diameter ... 9.441 0.008 mm (0.3717 0.0003 inch) (H) Diameter of the valve head ... 41.50 0.13 mm (1.634 0.005 inch) (J) Valve face angle ... 45.75 0.25 degrees (K) Minimum valve stem diameter ... 9.309 mm (0.3665 inch) (L) Minimum valve lip thickness ... 3.50 0.20 mm (0.138 0.008 inch) (4) 214-0586 Spring Quantity ... 4Length under test force ... 52.95 mm (2.085 inch)Test force ... 320 31 N (71.9 7.0 lb)Approximate free length after test ... 62.7 mm (2.47 inch)Outside diameter ... 34.00 mm (1.339 inch)Note: Apply clean 8T-9548 Oil to the valve guide bore before installing the valve guides. (5) Valve guide Quantity ... 4Bore of the installed valve guide ... 9.508 0.013 mm (0.3743 0.0005 inch)Maximum recommended diameter of the valve guide bore ... 9.544 mm (0.3757 inch)Note: Do not use a combination of a valve and a valve guide that has a difference of 0.13 mm (0.005 inch) or more. (6) Inlet valve insert Angle of the valve insert ... 30.75 0.25 degreesDiameter of the valve insert ... 45.525 0.013 mm (1.7923 0.0005 inch)Bore in the cylinder head for the valve insert ... 45.46 0.015 mm (1.78976 0.00059 inch) (7) Exhaust valve insert Angle of the valve insert ... 44.75 0.25 degreesDiameter of the valve insert ... 42.390 0.015 mm (1.6689 0.0006 inch)Bore in the cylinder head for the valve insert ... 42.320 0.015 mm (1.6661 0.0006 inch)