Chevrolet Silverado / GMC Sierra. Service manual — part 151

23. Remove the bearing cap bolts, cap, and paper stock.

24. Replace bearing halves as required to obtain the proper bearing clearances.

25. Install the bearings, cap, and bolts. Refer to Fastener Tightening Specifications.

Measuring Crankshaft Bearing Clearances - Plastic Gage Method

IMPORTANT: During this procedure, card stock may enter the crankshaft

journal oil galleries. Be sure to remove all card stock from
the bearing journal and oil galleries prior to reassembly.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado

Fig. 507: View Of Crankshaft Bearings At Engine Block
Courtesy of GENERAL MOTORS CORP.

1. Install the crankshaft bearings into the engine block.

Fig. 508: View Of Crankshaft

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado

Courtesy of GENERAL MOTORS CORP.

2. Install the crankshaft.

Fig. 509: Installing Gaging Plastic
Courtesy of GENERAL MOTORS CORP.

3. Install the gaging plastic the full width of the journal.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado

Fig. 510: View Of Crankshaft Bearings & Crankshaft Bearing Caps
Courtesy of GENERAL MOTORS CORP.

4. Install the crankshaft bearings into the crankshaft bearing caps.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado