Hummer H3. Manual — part 461

Fig. 660: View Of Oil Pan
Courtesy of GENERAL MOTORS CORP.

3. Install the oil pan.

4. Install the oil pan bolts.

IMPORTANT: The oil pan must be installed within 10 minutes from when

the sealer was applied.

2007 Hummer H3

2007 ENGINE Engine Mechanical - 3.7L - H3

Fig. 661: Aligning Oil Pan
Courtesy of GENERAL MOTORS CORP.

5. Check the oil pan alignment. Use a straight edge on the back of the block and oil pan

(transmission mounting surface).

6. Tighten the oil pan bolts.

Tighten:

Tighten the (side) oil pan bolts to 25 N.m (18 lb ft).

IMPORTANT: When installing the oil pan, it could be shifted front or back a

little which could cause a transmission alignment problem.
The back of the oil pan needs to be flush with the block.

NOTE:

Refer to FASTENER NOTICE .

2007 Hummer H3

2007 ENGINE Engine Mechanical - 3.7L - H3

Tighten the (end) oil pan bolts to 10 N.m (89 lb in).

CRANKSHAFT BALANCER INSTALLATION

Tools Required

J 45059 Angle Meter. See Special Tools.

J 41478 Crankshaft Balancer Installer. See Special Tools.

Installation Procedure

Fig. 662: Installing Crankshaft Balancer Using The J 41478
Courtesy of GENERAL MOTORS CORP.

1. Install the friction washer on the back side of the crankshaft balancer.

2007 Hummer H3

2007 ENGINE Engine Mechanical - 3.7L - H3

2. Install the crankshaft balancer using J 41478 . See Special Tools.

3. Remove J 41478 . See Special Tools.

4. Hold the flywheel or back of the crankshaft. The crankshaft balancer does not have a

keyway so the crankshaft could turn when tightening, causing an improper torque.

Fig. 663: View Of Crankshaft Balancer Bolt
Courtesy of GENERAL MOTORS CORP.

5. Install the crankshaft balancer washer and new bolt.

Tighten:

NOTE:

Refer to FASTENER NOTICE .

2007 Hummer H3

2007 ENGINE Engine Mechanical - 3.7L - H3