Hummer H3. Manual — part 459

Tool Required

J 41240 Fan Clutch Remover and Installer

Installation Procedure

Fig. 653: View Of Water Pump, Gasket & Bolts
Courtesy of GENERAL MOTORS CORP.

1. Install the NEW water pump gasket.

2. Install the water pump.

3. Install the water pump bolts.

Tighten: Tighten the water pump bolts to 10 N.m (89 lb in).

NOTE:

Refer to FASTENER NOTICE .

2007 Hummer H3

2007 ENGINE Engine Mechanical - 3.7L - H3

Fig. 654: View Of Water Pump Pulley, Bolts & J 41240
Courtesy of GENERAL MOTORS CORP.

4. Install the water pump pulley.

5. Install the water pump pulley bolts.

6. Install J 41240 to hold pulley.

7. Tighten the water pump pulley bolts.

Tighten: Tighten the water pump pulley bolts to 25 N.m (18 lb ft).

8. Remove J 41240 .

CRANKSHAFT REAR OIL SEAL AND HOUSING INSTALLATION

Tools Required

2007 Hummer H3

2007 ENGINE Engine Mechanical - 3.7L - H3

J 44219 Cover Alignment Pins. See Special Tools.

Installation Procedure

Fig. 655: Locating Rear Block Sealing Surface Adhesive
Courtesy of GENERAL MOTORS CORP.

1. Apply a 3 mm (0.12 in) bead of GM P/N 12378521 (Canadian P/N 88901148) to the rear

sealing surface of the block (1).

2007 Hummer H3

2007 ENGINE Engine Mechanical - 3.7L - H3

Fig. 656: View Of Crankshaft Rear Oil Seal Housing
Courtesy of GENERAL MOTORS CORP.

2. Install J 44219 into the block. See Special Tools.

3. Slide the crankshaft rear oil seal housing and bolts over the J 44219 and crankshaft, except

IMPORTANT: The crankshaft rear oil seal housing must be installed within

10 minutes from the time the sealer was applied.

IMPORTANT: With the help of the plastic installation aid (supplied with the

new seal), be sure the lip of the seal faces inward.

2007 Hummer H3

2007 ENGINE Engine Mechanical - 3.7L - H3