Hummer H3. Manual — part 481

Cylinder Head - Top/End Views

Fig. 4: Cylinder Head - Top/End Views
Courtesy of GENERAL MOTORS CORP.

Cylinder Head - Top/End Views

2.0

5

M8 x

1.25

210

206

207

208

209

26.5

(1.043)

19.0

(0.748)

Bolt hole 2 has an 11.5 mm (0.452 in) counterbore included in the 42.5 mm (1.67 in)
drill depth. Use sleeve J 42385-311 with the drill and tap.

Bolt hole 3 has a 1.5 mm (0.059 in) counterbore included in the 31.0 mm (1.22 in)
drill depth. Use sleeve J 42385-316 with the drill and tap.

Bolt hole 4 has a 20.5 mm (0.807 in) counterbore included in the 53.5 mm (2.10 in)
drill depth.

Hole

Thread

Size

Insert

Drill

Counterbore

Tool

Tap

Driver

Drill

Depth -

Maximum

mm (in)

Tap Depth

-

Maximum

mm (in)

J 42385-

1

M8 x

1.25

210

206

207

208

209

26.5 (1.04)

19.0

(0.784)

2

M6 x

1.0

205

201

202

203

204

20.05

(0.789)

16.05

(0.632)

3

M10 x

215

211

212

213

214

28.0 (1.10)

20.0

2008 Hummer H3

2008 ENGINE Engine Mechanical - 5.3L - H3

Cylinder Head - Intake/Exhaust Side Views

Fig. 5: Cylinder Head - Intake/Exhaust Side Views
Courtesy of GENERAL MOTORS CORP.

Cylinder Head - Intake/Exhaust Side Views

1.5

(0.787)

4

M6 x

1.0

205

201

202

203

204

22.5

(0.885)

15.0

(0.688)

Hole

Thread

Size

Insert

Drill

Counterbore

Tool

Tap

Driver

Drill

Depth -

Maximum

mm (in)

Tap Depth

-

Maximum

mm (in)

J 42385-

1

M6 x

1.0

205

201

202

203

204

Thru

Thru

2

M10 x

1.5

215

211

212

213

214

28.0 (1.10)

20.0

(0.787)

2008 Hummer H3

2008 ENGINE Engine Mechanical - 5.3L - H3

COMPONENT LOCATOR

DISASSEMBLED VIEWS

3

M8 x

1.25

210

206

207

208

209

21.0

(0.826)

16.0

(0.629)

4

M14 x

1.25

N/A

N/A

N/A

N/A

N/A

N/A

N/A

5

M12 x

1.5

N/A

N/A

N/A

N/A

N/A

N/A

N/A

2008 Hummer H3

2008 ENGINE Engine Mechanical - 5.3L - H3

Fig. 6: Intake Manifold/Upper Engine
Courtesy of GENERAL MOTORS CORP.

2008 Hummer H3

2008 ENGINE Engine Mechanical - 5.3L - H3