PLATE 6T8089 - Caterpillar

Type 1
Illustration 1 g00111806
Typical example
(1) Locknut Torque ... 70 15 N m (50 11 lb ft) (2) Rocker arm shaft Bore in the bearings for the rocker arm shaft After the bearing is installed in the rocker arm the bearing must be machined to size. ... 37.140 0.015 mm (1.4622 0.0006 inch)Maximum roughness average (Ra) ... 0.8 micrometer (32 microinch)Diameter of the rocker arm shaft ... 37.084 0.013 mm (1.4600 0.0005 inch) (3) Valve lash Inlet ... 0.50 mm (0.020 inch)Exhaust ... 1.00 mm (0.040 inch) (4) Height of dowel Height to the top of the dowel ... 66.5 0.5 mm (2.62 0.02 inch) (5) Locknut Torque ... 30 4 N m (22 3 lb ft) (6) Lifter Diameter of the new valve lifter ... 29.900 0.010 mm (1.1772 0.0004 inch)Bore in the head for the valve lifter ... 30.000 0.025 mm (1.1811 0.0010 inch) (7) Dowel Diameter of the new dowel ... 11.008 0.003 mm (0.4334 0.0001 inch)Bore in the bridge for the dowel ... 11.07 0.03 mm (0.436 0.001 inch)Bore in the head for the dowel ... 10.968 0.020 mm (0.4318 0.0008 inch) (8) Mounting bolt Torque ... 120 20 N m (90 15 lb ft) (9) Guide springs Refer to Guidelines For Reusable Parts, SEBF8172, "Visual Inspection of 7N-4782 Lifter Guide Spring − 3500 Family of Engines".Type 2
Illustration 2 g01172129
Typical example
(1) Locknut Torque ... 70 15 N m (50 11 lb ft) (2) Rocker arm shaft Bore in the bearings for the rocker arm shaft After the bearing is installed in the rocker arm the bearing must be machined to size. ... 37.140 0.015 mm (1.4622 0.0006 inch)Maximum roughness average (Ra) ... 0.8 micrometer (32 microinch)Diameter of the rocker arm shaft ... 37.084 0.013 mm (1.4600 0.0005 inch) (3) Valve lash Inlet ... 0.50 mm (0.020 inch)Exhaust ... 1.00 mm (0.040 inch) (4) Lifter Diameter of the new valve lifter ... 29.900 0.010 mm (1.1772 0.0004 inch)Bore in the head for the valve lifter ... 30.000 0.025 mm (1.1811 0.0010 inch) (5) Mounting bolt Torque ... 120 20 N m (90 15 lb ft) (6) Guide springs Refer to Guidelines For Reusable Parts, SEBF8172, "Visual Inspection of 7N-4782 Lifter Guide Spring − 3500 Family of Engines".