SHAFT-SUN GEAR 3677422 - Caterpillar

Illustration 1 g01418207
Right side view
Illustration 2 g01418249
View B-B
(A) Distance from the top of the cylinder block to the top of the dowel ... 14.0 0.5 mm (0.55 0.02 inch) (D) Distance from the rear face of the cylinder block to the end of dowels ... 12.0 0.5 mm (0.47 0.02 inch) (E) Distance from the front face of the cylinder block to the end of dowels ... 8.0 0.5 mm (0.31 0.02 inch) (F) Installation depth of the cup plug from the block face to the top edge of the plug ... 1.25 0.25 mm (0.049 0.010 inch)
Illustration 3 g01418605
View C-C
(G) Distance from the centerline of the crankshaft bore to the top surface of the cylinder block ... 356.50 0.15 mm (14.035 0.006 inch) (J) Camshaft bores Bore diameters in the cylinder block for the camshaft bearings except for the front camshaft bearing. ... 70.000 0.038 mm (2.7559 0.0015 inch)Bore diameter in the cylinder block for the front camshaft bearing. ... 70.000 0.025 mm (2.7559 0.0010 inch) (K) Distance from the centerline of the crankshaft to the bottom surface of the cylinder block ... 110.00 mm (4.331 inch) (L) Bore in the cylinder block for the seven main bearings ... 112.000 0.013 mm (4.4094 0.0005 inch) (M) Width of the main bearing cap ... 175.000 0.020 mm (6.8898 0.0008 inch)Use the following procedure in order to tighten the main bearing cap bolts (1):
Orient the main bearing cap correctly. The part number on the main bearing cap must face to the right and to the front face of the block. Note: The main bearing caps are marked with identification numbers "1" through "7". Install the main bearing caps into the correct positions.
Lubricate the main bearing cap bolts. Use SAE 30W oil or molybdenum grease to lubricate the threads and the washer face.
Torque the main bearing cap bolts to 95 5 N m (70 4 lb ft).
Put an alignment mark on each cap and bolt.
Rotate the bolts in the clockwise direction to an angle of 90 5 degrees.
Illustration 4 g01418610
View H-H
Camshaft bearings must be installed into their correct position. Failure to do so will result in engine damage.
The camshaft bearings are installed into the cylinder block at the following positions: Position (N) ... 816.50 0.80 mm (32.146 0.031 inch)Position (P) ... 536.50 0.80 mm (21.122 0.031 inch)Position (S) ... 294.50 0.80 mm (11.594 0.031 inch)Position (T) ... 0.50 0.25 mm (0.020 0.010 inch) (U) Installation depth of the cup plug from the block face to the top edge of the plug ... 1.25 0.25 mm (0.049 0.010 inch)