3406E Truck Engines Caterpillar

Illustration 1	g00955608

Note: For the correct procedure on measuring for a bent crankshaft, refer to the Guideline for Reusable Parts, SEBF8054, "Procedure to Measure and Straighten Crankshafts".

(1) The length of the dowel from the surface of the crankshaft ... 4.1 ± 0.5 mm (0.16 ± 0.02 inch)

(2) The length of the dowel from the surface of the crankshaft ... 6.4 mm (0.25 inch)

(3) Main bearing journal

(4) Connecting rod bearing journal

Refer to Specifications, "Connecting Rod Bearing Journal" and Specifications, "Main Bearing Journal" for more information about the crankshaft journals.

(5) Crankshaft end play

The end play for the crankshaft (new) ... 0.15 to 0.55 mm (0.007 to 0.022 inch)

The maximum permissible end play with used bearings ... 0.89 mm (0.035 inch)

(6) Timing gear

Note: The timing mark "V" must be oriented to the front of the crankshaft when the gear is installed.