3208 INDUSTRIAL ENGINE ATTACHMENTS – Crankshaft

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 [0.25 mm (.010 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.