3208 INDUSTRIAL & MARINE ENGINES Caterpillar


Crankshaft

Usage:

Heat gear to install. Do not heat to a temperature of more than 260°C (500°F).

(1) Endplay for the crankshaft ... 0.08 to 0.30 mm (.003 to .012 in)

Maximum permissible endplay for the crankshaft (worn) ... 0.36 mm (.014 in)

(2) Diameter of bearing surface (journals) for the connecting rods [standard, original size] ... 69.840 ± 0.015 mm (2.7496 ± .0006 in)

Minimum permissible diameter (worn) ... 69.814 mm (2.7486 in)

Diameter of bearing surfaces (journals) for the connecting rods [0.51 mm (.020 in) smaller than the original size] ... 69.586 ± 0.015 mm (2.7396 ± .0006 in)

Minimum permissible diameter (worn) ... 69.560 mm (2.7386 in)

Diameter of bearing surfaces (journals) for the connecting rods [0.51 mm (.020 in) smaller than the original size] ... 69.332 ± 0.015 mm (2.7296 ± .0006 in)

Minimum permissible diameter (worn) ... 69.306 mm (2.7286 in)

Diameter of bearing surfaces (journals) for the connecting rods [1.27 mm (.050 in) smaller than the original size] ... 68.570 ± 0.015 mm (2.6996 ± .0006 in)

Minimum permissible diameter (worn) ... 68.544 mm (2.6986 in)

(3) Diameter of bearing surfaces (journals) for the main bearings [standard, original size] ... 88.887 ± 0.015 mm (3.4995 ± .0006 in)

Minimum permissible diameter (worn) ... 88.749 mm (3.4980 in)

Diameter of bearing surfaces (journals) for the main bearings [0.25 mm (.010 in) smaller than the original size] ... 88.633 ± 0.015 mm (3.4895 ± .0006 in)

Minimum permissible diameter (worn) ... 88.595 mm (3.4880 in)

Diameter of bearing surfaces (journals) for the main bearings [0.51 mm (.020 in) smaller than the original size] ... 88.379 ± 0.015 mm (3.4795 ± .0006 in)

Minimum permissible diameter (worn) ... 88.341 mm (3.4780 in)

Diameter of bearing surfaces (journals) for the main bearings [1.27 mm (.050 in) smaller than the original size] ... 87.617 ± 0.015 mm (3.4495 ± .0006 in)

Minimum permissible diameter (worn) ... 87.579 mm (3.4480 in)

Maximum permissible run out of the crankshaft main bearing surfaces (journals) ... 0.13 mm (.005 in)

NOTE: See Reconditioning Procedures for the correct method to check for bent crankshafts.

Back to top
The names Caterpillar, John Deere, JD, JCB, Hyundai or any other original equipment manufacturers are registered trademarks of the respective original equipment manufacturers. All names, descriptions, numbers and symbols are used for reference purposes only.
CH-Part.com is in no way associated with any of the manufacturers we have listed. All manufacturer's names and descriptions are for reference only.