3044C Industrial Engine and Engines for Caterpillar Built Machines Caterpillar


Crankshaft

Usage:

3044C 344



Illustration 1g00987940

(1) Crankshaft end play

Standard at assembly ... 0.100 to 0.264 mm (0.0039 to 0.0104 inch)
Repair limit ... 0.300 mm (0.0118 inch)

Crankshaft deflection

Maximum at assembly ... 0.02 mm (0.0008 inch)
Repair limit ... 0.05 mm (0.0020 inch)

Clearance between crankshaft bearing and crankshaft journal

Standard at assembly ... 0.050 to 0.110 mm (0.0020 to 0.0043 inch)
Repair limit ... 0.200 mm (0.0079 inch)



Illustration 2g00994009

(A) Original width of the rear crankshaft journal ... 31.000 to 31.039 mm (1.2205 to 1.2220 inch)

Table 1
Width of Crankshaft Journal for Oversize Thrust Washers    
Oversize Thrust Washer     Oversize Width for Front OR Rear     Oversize Width for Front AND Rear    

0.15 mm (0.006 inch)    

31.150 to 31.189 mm (1.2264 to 1.2279 inch)    

31.300 to 31.339 mm (1.2323 to 1.2338 inch)    

0.30 mm (0.012 inch)    

31.300 to 31.339 mm (1.2323 to 1.2338 inch)    

31.450 to 31.489 mm (1.2382 to 1.2397 inch)    

0.45 mm (0.018 inch)    

31.450 to 31.489 mm (1.2382 to 1.2397 inch)    

31.600 to 31.639 mm (1.2441 to 1.2456 inch)    

Refer to Specifications, "Connecting Rod Bearing Journal" for information on the connecting rod bearing journals.

Refer to Specifications, "Main Bearing Journal" for information on the main bearing journals and the main bearings.

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