Chevrolet Silverado / GMC Sierra. Manual — part 290

Fig. 190: View Of Sealant Applied To Rear Oil Pan-To-Engine Block Junction
Courtesy of GENERAL MOTORS CORP.

2. Apply a 5 mm (0.20 in) bead of sealant 20 mm (0.8 in) long to the engine block. Refer to

Sealers, Adhesives, and Lubricants for the correct part number.

Apply the sealant directly onto the tabs of the rear cover gasket that protrudes into the oil
pan surface.

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2

Fig. 191: View Of Oil Pan & Bolts
Courtesy of GENERAL MOTORS CORP.

IMPORTANT: Be sure to align the oil gallery passages in the oil pan and

engine block properly with the oil pan gasket.

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2

3. Pre-assemble the oil pan gasket to the pan.

Install the gasket onto the pan.

Install the oil pan bolts to the pan and through the gasket.

4. Install the oil pan, gasket and bolts to the engine block.

5. Tighten the oil pan bolts until snug. Do not overtighten.

Fig. 192: Identifying Stud & Bolt Securing Transmission To Engine (Right Side)
Courtesy of GENERAL MOTORS CORP.

6. Install the transmission bolt and stud on the right side until snug.

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2

Fig. 193: Identifying Six Studs & One Bolt Securing Transmission To Engine
Courtesy of GENERAL MOTORS CORP.

7. Install the bottom bolt on the left side until snug.

Tighten:

1. Tighten the oil pan and oil pan-to-oil pan front cover bolts to 25 N.m (18 lb ft).

2. Tighten the oil pan-to-rear cover bolts to 12 N.m (106 lb in).

3. Tighten the bellhousing, converter cover, and transmission bolts/stud to 50 N.m (37 lb

ft).

NOTE:

Refer to Fastener Notice .

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2

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