PUMP GP-SCAV -A 20R7833 - Caterpillar

Rotation of Fuel Pump Camshaft (when seen from pump drive end) ... CounterclockwiseFiring order (injection sequence) ... 1, 3, 4, 2Injection timing before TC (top center): Precombustion Chamber (PC) ... 20 1°Direct Injection (DI) (Earlier) ... 20 1°Direct Injection (DI) Later - See the chart that follows for Engine Arrangements and Serial Nos.) ... 22 1° (1) Torque for bushing ... 150 10 lb. ft.(205 14 N m)
A-8S7167 GAUGE
B-5P4158 GAUGE (5) Bore for the rack and diameter of the rack: Bearing at the rear (new) ... .5020 .0016 in.(12.751 0.041 mm)Bearing at the front (new) ... .5023 .0015 in.(12.758 0.038 mm)Diameter of fuel rack (new) ... .4985 .0002 in.(12.662 0.005 mm)Maximum permissible clearance between rack and bearings (worn) ... .005 in.(0.13 mm)(6) Bore in bearings for the camshaft (new) ... 1.8775 .0005 in.(47.638 0.013 mm) Diameter of bearing surfaces of the camshaft (new) ... 1.8730 .0005 in.(47.574 0.013 mm)Maximum permissible clearance between the bearings and the camshaft ... .010 in.(0.25 mm)