CYLINDER BLOCK GP-SHORT 4495064 - Caterpillar

Table 1
Diameter of Crankshaft Journal (Bearing Surface) For Main Bearings    
Original Size Journal (1)    
77.955 to 77.970 mm (3.0691 to 3.0697 inch)    
Undersize Journal
0.25 mm (0.010 inch)    
77.705 to 77.720 mm (3.0592 to 3.0598 inch)    
Undersize Journal
0.50 mm (0.020 inch)    
77.455 to 77.470 mm (3.0494 to 3.0500 inch)    
Undersize Journal
0.75 mm (0.030 inch) (2)    
77.205 to 77.220 mm (3.0396 to 3.0402 inch)    
( 1 ) Regrind the main bearing journals to the next undersize dimension if the repair limit of 77.850 mm (3.0650 inch) is exceeded.
( 2 ) Service limit 77.100 mm (3.0354 inch)The clearance between a new main bearing and a new main bearing journal is the following value. ... 0.050 to 0.110 mm (0.0020 to 0.0043 inch)