NUT 7Y8463 - Caterpillar

Installation Procedure
Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A     2P-5518     Main Bearing Tool     1    
B     6V-4876     Lubricant     1    
C     8T-5096     Dial Indicator Group     1    
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Note: Place clean engine oil on the crankshaft main bearings prior to assembly. Ensure that the tabs on the back side of the crankshaft main bearings fit in the grooves of the crankshaft main bearing caps and the cylinder block.
Illustration 1 g00988318
Use Tooling (A) and install the upper halves of the crankshaft main bearings in the cylinder block. Do not put oil on the back of the crankshaft main bearing.
Illustration 2 g00988316
Install the lower halves of the crankshaft main bearings in crankshaft main bearing caps (2). Do not put oil on the back of the crankshaft main bearing.
Crankshaft main bearing caps should be installed with the part number toward the right side of the engine. Crankshaft main bearing caps are to be identified by stamped numbers 1 through 7 located on the bottom surface. The thrust plate is used on the number 6 crankshaft main bearing only.
Position crankshaft main bearing caps (2) on the cylinder block. Apply Tooling (B) on the bolt threads and on the washer face. Install bolts (1) .
Tighten bolts (1) to a torque of 54 7 N m (40 5 lb ft). Tighten each bolt (1) for an additional 90 5 degrees (1/4 turn).
Check the end play of the crankshaft with Tooling (C). The end play must be 0.07 to 0.32 mm (0.003 to 0.013 inch).End By: Install the engine oil pump. Refer to Disassembly and Assembly, "Engine Oil Pump - Install".