Crankshaft Main Bearing

CRANKSHAFT MAIN BEARING


CAUTION: The #2 main bearing cap must be centered over the inner bolt holes located on the block. Failure to center the bearing cap can result in contact with the crankshaft counterweights and thrust bearing failure.

Crankshaft Main Bearing Cap - Inner Main Cap Bolts
Step 1 20 Nm (15 ft. lbs)
Step 2 + 1/4 Turn

Crankshaft Main Bearing Cap - Outer Main Cap Bolts
Step 1 27Nm (20 ft. lbs)
Step 2 + 1/4 Turn

Tie Bolts (Horizontal) 28 Nm (20 ft. lbs)

NOTE: The main bearing cap bolts must be tightened in the proper sequence. First the inner main cap bolts, secondly the windage tray bolts, and lastly the main cap tie (horizontal) bolts.


Main Bearing Diametrical Clearance 0.032-0.062 mm (0.0013-0.0024 in.)
Bearing Clearance (Wear Limit) 0.072 mm (0.0028 in.)

MAIN BEARING SELECTION CHART