Hummer H3. Manual — part 111

Removal Procedure

1. Remove the crankshaft balancer. Refer to Crankshaft Balancer Replacement.

Fig. 106: View Of Crankshaft Front Oil Seal
Courtesy of GENERAL MOTORS CORP.

2. Pry out the crankshaft front oil seal using a suitable tool.

Discard the seal.

IMPORTANT: Do not damage the engine front cover or the crankshaft.

2006 Hummer H3

2006 ENGINE Engine Mechanical - 3.5L (L52) - H3

Installation Procedure

Fig. 107: View Of Crankshaft Front Oil Seal
Courtesy of GENERAL MOTORS CORP.

1. Apply the engine oil to the outside diameter of the crankshaft front oil seal.

2006 Hummer H3

2006 ENGINE Engine Mechanical - 3.5L (L52) - H3

Fig. 108: Installing Crankshaft Front Oil Seal
Courtesy of GENERAL MOTORS CORP.

2. Use the J 45951 to install the NEW crankshaft front oil seal. See Special Tools.

3. Remove the J 45951 . See Special Tools.

4. Install the crankshaft balancer. Refer to Crankshaft Balancer Replacement.

ENGINE FRONT COVER REPLACEMENT

2006 Hummer H3

2006 ENGINE Engine Mechanical - 3.5L (L52) - H3

Tools Required

J 44219 Cover Alignment Pins. See Special Tools.

Removal Procedure

1. Remove the water pump. Refer to Water Pump Replacement in Engine Cooling.

2. Remove the crankshaft balancer. Refer to Crankshaft Balancer Replacement.

3. Remove the drive belt tensioner. Refer to Drive Belt Tensioner Replacement.

4. Remove the power steering pump. Refer to Power Steering Pump Replacement in Power

Steering.

5. Remove the oil pump pipe and screen assembly. Refer to Oil Pump Pipe and Screen

Assembly Replacement.

6. Lower the vehicle.

2006 Hummer H3

2006 ENGINE Engine Mechanical - 3.5L (L52) - H3