Operation CHARM: Car repair manuals for everyone.

Crankshaft Main Bearing

Crankshaft Lower Main Bearings
Install the No. 1 through No. 5 crankshaft lower main bearings into the main bearing caps. Locate the main bearing caps on the cylinder block and, keeping the cap as square as possible, alternately draw the cap down evenly using the cap fasteners.
Install the bolts.





Install the 10 dowel pins so that the flat sides face the crankshaft. Install the cross-mounted bolts.





Crankshaft main bearing bolts (vertical)
Tighten fasteners 1 through 12 in 2 stages, in the sequence shown.
^ Stage 1: Tighten to 40 Nm (30 ft. lbs.).
^ Stage 2: Tighten an additional 90 degrees.





Crankshaft main bearing bolts (cross-mounted)
Tighten fasteners 13 through 24 in 2 stages, in the sequence shown.
^ Stage 1: Tighten to 30 Nm (22 ft. lbs.).
^ Stage 2: Tighten an additional 90 degrees.