CRANKSHAFT MAIN BEARING SELECTION
The main bearings are "select fit" to achieve proper oil clearances. For main bearing selection, the crankshaft position sensor target wheel has grade identification marks stamped into it (Fig. 104). These marks are read from left to right, corresponding with journal number 1, 2, 3, 4 and 5. The crankshaft position sensor target wheel is mounted to the number 8 counter weight on the crankshaft.
NOTE: Service main bearings color coded. These color codes identify what size (grade) the bearing is.
CHECKING CRANKSHAFT END PLAY
(1) Mount a dial indicator to a stationary point at front of engine. Locate the probe perpendicular against nose of crankshaft (Fig. 105).
(2) Move the crankshaft all the way to the rear of it's travel.
(3) Zero the dial indicator.
(4) Move the crankshaft all the way to the front of it's travel and read the dial indicator. Refer to Crankshaft End Play Specification Chart.