Chevrolet Silverado / GMC Sierra. Service manual — part 215

Fig. 724: Exhaust Manifold Bolts
Courtesy of GENERAL MOTORS CORP.

2. Install the exhaust manifold.

3. Install the spark plug wire shields.

4. If reusing the fasteners, apply threadlock GM P/N 12345493 (Canadian P/N 10953488) or

equivalent, to the threads of the exhaust manifold bolts.

5. Install the exhaust manifold bolts.

Tighten:

NOTE:

Refer to Fastener Notice .

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado

1. Tighten the exhaust manifold bolts on the first pass to 15 N.m (11 lb ft).

2. Tighten the exhaust manifold bolts on the final pass to 30 N.m (22 lb ft).

6. Install the spark plug wires to the spark plug wire retainers.

7. Install the spark plug wires onto the spark plugs.

CLUTCH PILOT BEARING INSTALLATION

Fig. 725: Clutch Pilot Bearing Proper Installation Position
Courtesy of GENERAL MOTORS CORP.

CAUTION: Refer to SAFETY GLASSES CAUTION .

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado

1. Install the NEW clutch pilot bearing using a suitable clutch pilot bearing installation tool.

2. Measure to ensure the proper installation depth is obtained.

ENGINE FLYWHEEL INSTALLATION

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado

Fig. 726: Locating Flywheel Weights (Manual Transmission)
Courtesy of GENERAL MOTORS CORP.

1. Note the position of the flywheel weights and install the NEW flywheel weights as required.

A properly installed flywheel weight will be flush or slightly below flush with the face of
the engine flywheel.

IMPORTANT: If replacing the engine flywheel, manual transmission, note

the position and length of the original flywheel weights, if
applicable. Flywheel weights of the same length must be
installed into the new engine flywheel in the same location
as the old flywheel weights were in the old engine flywheel.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado