General Motors — Thrust Bearing
Adjustments
From a General Motors service manual — check it applies to your exact model before use.
Procedure
- Install main bearing caps (except rear), and tighten cap bolts to specification. Install rear main bearing cap and tighten cap bolts to 10 ft. lbs. (14 N.m).
- Tap crankshaft rearward then forward to align thrust surfaces. Tighten rear main bearing cap bolts to specification.
- Measure crankshaft end play at forward thrust surface of rear main bearing cap.
Specs & values
- Rear main bearing cap bolts: 10 ft. lbs. (14 N.m) initially; then tighten to specification. See CRANKSHAFT, MAIN & CONNECTING ROD BEARINGS table.
Source: General Motors service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.