Crankshaft Main Bearing: Specifications

CRANKSHAFT MAIN BEARING

CAUTION: The #3 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 Cap Bolts
Step 1 20 Nm (15 ft. lbs)
Step 2 +1/4 Turn

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

Crankshaft Main Bearing Cap - Tie Bolts 28 Nm (250 in. 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.


Bearing Clearance 0.032-0.056 mm (0.0012-0.0022 in.)
Bearing Clearance (Max) (Wear Limit) 0.070 mm (0.0028 in.)

MAIN BEARING SELECTION CHART