3208 MARINE ENGINE 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) For diameter of bearing surface (journals) for the connecting rods, standard and undersize, See, Bearings For Connecting Rods And Mains.

Minimum permissible connecting rod journal diameter (worn) for standard, original size journal ... 69.814 mm (2.7486 in)

Minimum permissible connecting rod journal diameter (worn) for connecting rods [0.25 mm (.010 in) smaller than the original size] ... 69.560 mm (2.7386 in)

Minimum permissible connecting rod journal diameter (worn) for connecting rods [0.51 mm (.020 in) smaller than the original size] ... 69.306 mm (2.7286 in)

Minimum permissible connecting rod journal diameter (worn) for connecting rods [1.27 mm (.050 in) smaller than the original size] ... 68.544 mm (2.6986 in)

(3) For diameter of crankshaft bearing surfaces (journals) for the main bearings, standard and undersize, see Bearing For Connecting Rods And Mains.

Minimum permissible crankshaft journal diameter (worn) for standard, original size journal ... 88.749 mm (3.4980 in)

Minimum permissible crankshaft journal diameter (worn) [0.25 mm (.010 in) smaller than the original size] ... 88.595 mm (3.4880 in)

Minimum permissible crankshaft journal diameter (worn) [0.51 mm (.020 in) smaller than the original size] ... 88.341 mm (3.4780 in)

Minimum permissible crankshaft journal diameter (worn) [1.27 mm (.050 in) smaller than the original size] ... 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.

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