General Motors 5.0 / 5.7 — Crankshaft and Bearings Installation
Repair & overhaul
For the General Motors 5.0 / 5.7, from the General Motors service manual.
Before you start
- Refer to Fastener Notice
Procedure
- Install crankshaft bearings into engine block and apply clean engine oil.
- Apply clean engine oil to crankshaft bearing journals; install crankshaft.
- Install bearings into bearing caps; apply clean engine oil.
- Install bearing caps in original positions with arrow toward front.
- Install cap bolts and studs; thrust crankshaft rearward then forward.
- Measure crankshaft end play 0.05—0.20 mm (0.002—0.008 in).
- Tighten bolts first pass 20 N-m; final pass to specified degrees using J 36660-A.
- Rotate crankshaft to check for binding.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Crankshaft end play 0.05—0.20 mm
- First pass 20 N-m (15 lb ft)
- 2 bolt caps final pass 73 degrees
- 4 bolt outboard 43 degrees, inboard 73 degrees
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.