Oil Pump Body Bushing Replacement

WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.

Tools Required

J 41778-1 Pump Body Bushing Installer/Remover. See Special Tools .
J 41778-2 Pump Body Bushing Position Stop. See Special Tools .

Fig 1: Oil Pump Body

Courtesy of GENERAL MOTORS CORP.

Inspect the oil pump body for the following:
- Worn or damaged bushings
- Foreign material or debris
- Porosity
- Scored or irregular mating faces
- Cross channel leaks

Fig 2: Front Fluid Seal Retainer & Oil Seal Assembly

Courtesy of GENERAL MOTORS CORP.

Remove the front fluid seal retainer (244).
Remove the oil seal assembly (243).

Fig 3: Identifying Pump Body Bushing

Courtesy of GENERAL MOTORS CORP.

Using the J 41778-1 (1) with an arbor press, remove the pump body bushing (242). See Special Tools .

Fig 4: Installing Pump Body Bushing

Courtesy of GENERAL MOTORS CORP.

Using J 41778-1 (1) with an arbor press, install a new pump body bushing (242). See Special Tools .

Fig 5: Using J 41778-2

Courtesy of GENERAL MOTORS CORP.

Use the J 41778-2 (1) to ensure proper bushing depth. See Special Tools .