Crankshaft Main Bearing

Main Bearing Cap




Install the main bearing cap support brace and the new bolts. Tighten in the sequence shown in 2 steps.
Stage 1: Tighten fasteners to 20 Nm (177 lb-in).
Stage 2: Tighten fasteners an additional 180 degrees.







Early built engines

NOTE: While tightening the main bearing vertical bolts, push the crankshaft forward and the No. 4 main bearing cap rearward to seat the crankshaft thrust washers.

Tighten the main bearing bolts in the sequence shown in 2 stages.
Stage 1: Tighten fasteners 1 through 8 to 60 Nm (44 lb-ft).
Stage 2: Tighten fasteners 1 through 8 an additional 90 degrees.







Install the new 8 main bearing cap side bolts.
Tighten in the sequence shown in 2 stages.
Stage 1: Tighten fasteners 1 through 8 to 45 Nm (33 lb-ft).
Stage 2: Tighten fasteners 1 through 8 an additional 90 degrees.







Late built engines

NOTE: While tightening the main bearing vertical bolts, push the crankshaft forward and the No. 4 main bearing cap rearward to seat the crankshaft thrust washers.

Tighten the main bearing bolts in the sequence shown in 2 stages.
Stage 1: Tighten fasteners 1 through 8 to 33 Nm (24 lb-ft).
Stage 2: Tighten fasteners 1 through 8 an additional 135 degrees.







Install the new 8 main bearing cap side bolts. Tighten in the sequence shown in 2 stages.
Stage 1: Tighten fasteners 1 through 8 to 24 Nm (18 lb-ft).
Stage 2: Tighten fasteners 1 through 8 an additional 180 degrees.