VALVE GP-CHECK & RELIEF 4T1642 - Caterpillar

Illustration 1 g00488509
Bore diameters in the cylinder block for the cylinder block liners: Position (A) ... 151.50 0.03 mm (5.965 0.001 inch) Position (B) ... 149.8 0.3 mm (5.898 0.012 inch) Position (C) ... 148.00 0.03 mm (5.827 0.001 inch) Position (D) ... 141.90 0.05 mm (5.587 0.002 inch)
Illustration 2 g01365109
(E) Distance from the centerline of the crankshaft bore to the top surface of the cylinder block ... 387.00 mm
(15.236 inch) (F) Diameter of the camshaft bores ... 85.00 0.015 mm
(3.3465 0.0006 inch) (G) Distance from the centerline of the crankshaft to the bottom surface of the cylinder block ... 120.0 mm
(4.72 inch)Width in cylinder block for the main bearing cap ... 178 0.023 mm
(7.0079 0.0009 inch) (H) Width of the main bearing cap ... 178 0.02 mm
(7.008 0.001 inch) (I) Bore in the cylinder block for the seven main bearings ... 116.000 0.013 mm
(4.5669 0.0005 inch) (1) Bolts for the piston cooling jets (2) Main bearing cap boltsUse the following procedure in order to install the main bearing cap bolts:
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. Also, the tab slots that are in the block and the main bearing caps must be adjacent.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.
Tighten the main bearing cap bolts.Tighten bolts to the following torque. ... 150 5 N m (110 5 lb ft)
Put an alignment mark on each cap and bolt.Rotate the bolts in the clockwise direction. ... 60 5 degrees
Illustration 3 g01365121
The camshaft bearings are installed into the cylinder block at the values that follow. Position (J) ... 36.50 mm
(1.437 inch) Position (K) ... 192.50 mm
(7.578 inch) Position (L) ... 348.50 mm
(13.720 inch) Position (M) ... 504.50 mm
(19.862 inch) Position (N) ... 660.50 mm
(26.004 inch) Position (P) ... 816.50 mm
(32.145 inch) Position (R) ... 972.50 mm
(38.287 inch)
Camshaft bearings must be installed into their correct position. Failure to do so will result in engine damage.
Illustration 4 g01365128
(3) Bearing joint (4) Oil hole (S) Bearing oil hole is located at a 45 degree angle from vertical. All seven bearings have the same angle.