Crankshaft Main Bearing
Main Bearing Cap Torque & SequenceMAIN BEARING CAP Torque
NOTE: The main bearing cap bolts must be tightened in the proper sequence. First the inner main cap bolts, secondly the windage tray bolts, lastly the main cap tie (horizontal) bolts.
NOTE: Lubricate main bearing cap inner bolts (2) with engine oil before installation.
Install each main cap (1) and tighten inner bolts (2) finger tight. Align the location reference mark scribed on the #2 main bearing cap during disassembly.
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.
Following verification of proper #2 bearing cap centering, finish tightening the main bearing cap inner bolts an additional 90° turn.
Install windage tray (3). Lubricate bolts with engine oil. Finger tighten all bolts first, then tighten to 28 Nm + 90° turn (20 ft. lbs. + 90° turn) beginning with the inside bolts tightening outward.
Install oil pickup tube (1) and tighten bolt to 28 Nm (20 ft. lbs.).
Install the main cap tie (horizontal) bolts and tighten to 28 Nm (20 ft. lbs.).
Crankshaft Main Bearing Cap
Inner Main Cap Bolts 20+(1/4) Turn Nm (15+(1/4) Turn ft.lbs)
Outer Main Cap Bolts 27+(1/4) Turn Nm (20+(1/4) Turn ft.lbs)
Tie Bolts (Horizontal) 28 Nm (250 in.lbs)
Main Journal Diameter 68.987-69.013 mm (2.717-2.716 in.)
Main Bearing Diametrical Clearance 0.032-0.062 mm (0.0013-0.0024 in.)
Bearing Clearance (Wear Limit) 0.070 mm (0.0027 in.)
DIA Out-Of-Round (MAX) 0.007 mm (0.0003 in.)
Diametrical Taper (MAX) 0.006 mm (0.00025 in.)
End Play 0.048-0.260 mm (0.002-0.010 in.)
End Play (MAX) 0.330 mm (0.013 in in.)
Main Bearing Size Codes
Main Bearing Selection Chart
