LINK-RACK 4N1572 - Caterpillar

Illustration 1 g00503937
View from the front of the cylinder block (1) Spacer plate and gasket thickness Thickness of the spacer plate ... 8.585 0.025 mm (0.3380 0.0010 inch) Thickness of the gasket between the spacer plate and the engine block ... 0.208 0.025 mm (0.0082 0.0010 inch) Height of the cylinder liner above the spacer plate ... 0.0885 0.0635 mm (0.0035 0.0025 inch)Note: The height of the cylinder liner above the spacer plate is measured under the pressure of installation. (2) Dimension from the centerline of the crankshaft bearing bore to the top of the block (top deck) New ... 425.45 0.15 mm (16.750 0.006 inch) Minimum ... 425.02 mm (16.733 inch)Note: The flatness across the entire contact surface of the block must be within 0.10 mm (0.004 inch). The flatness across any 177.5 mm (6.99 inch) section of the surface must be within 0.05 mm (0.002 inch). The specification for the maximum surface finish which is allowed is 0.0032 mm (0.0001 inch). (3) Bolt Torque ... 25 6 N m (18 4 lb ft) (4) Plug Torque ... 70 10 N m (52 7 lb ft) (5) Bore in the block for the main bearings Standard size for new bearings ... 129.891 0.013 mm (5.1138 0.0005 inch) 0.64 mm (0.025 inch) larger than original size ... 130.526 0.013 mm (5.1388 0.0005 inch) (6) Bore in the block for the camshaft bearings Bore ... 76.835 0.018 mm (3.0250 0.0007 inch)Note: Install the camshaft bearings with the oil holes in the bearings on the horizontal centerline. Make sure that the position of the bearing joint is above the oil holes. (7) Plug Torque ... 35 7 N m (26 5 lb ft) (8) Dimensions for main bearing cap Width of the main bearing cap ... 215.900 0.025 mm (8.5000 0.0010 inch) Width of the block for the main bearing cap ... 215.900 0.025 mm (8.5000 0.0010 inch) Clearance between the sides of the main bearing cap and the cylinder block ... 0.038 mm (0.0015 inch) tight fit to 0.038 mm (0.0015 inch) loose fit (9) Plug Torque ... 70 10 N m (52 7 lb ft) (10) Main bearing cap boltsNote: Install the main bearing caps in order to orient the arrows that are stamped on the main bearing caps toward the front of the engine. Install each cap in the correct position. The number which is stamped on the bottom side of each cap should be placed toward the corresponding number which is cast on the cylinder block.Use the following procedure to install the main bearing cap bolts.
Apply 4C-5593 Anti-Seize Compound to the main bearing cap bolts.
Tighten the bolts on the bearing tab side of the bearing cap first.Torque ... 258