WINDSHIELD 3A7520 - Caterpillar

Rotation of fuel pump camshaft (when seen from pump drive end) ... counterclockwiseFiring order ... 1, 3, 4, 2Injection timing before TC (top center) ... 18 1°(1) Torque for bushing ... 205 15 N m (154 11 lb ft)
A-5P4158 Gauge Typical Example (6) Bore for the rack and diameter of the rack:Bearing at the rear (new) ... 12.746 0.046 mm (.5018 .0018 in)Bearing at the front (new) ... 12.758 0.046 mm (.5023 .0018 in)Diameter of fuel rack (new) ... 12.662 0.005 mm (.4985 .0002 in)Maximum permissible clearance between rack and bearings (worn) ... 0.13 mm (.005 in)(7) Bore in the bearings for the camshaft (new) ... 47.663 0.025 mm (1.8765 .0010 in)Diameter of bearing surfaces of the camshaft (new) ... 47.574 0.013 mm (1.8730 .0005 in)Maximum permissible clearance between the bearings and the camshaft ... 0.25 mm (.010 in)(8) Pump plunger length (new) ... 65.872 0.038 mm (2.5934 .0015 in)Min. permissible length ... 65.707 mm (2.5869 in)(9) Timing dimension for fuel injection pumps with 5P4158 Gauge (A):On engine ... 106.023 0.051 mm (4.1741 .0020 in)Off engine ... 108.395 0.051 mm (4.2675 .0020 in)