Oil Pump, Screen and Crankshaft Oil Deflector Installation (LS7)

Special Tools 

J 41480  Front and Rear Cover Alignment

For equivalent regional tools, refer to Special Tools

Fig 1: View Of Oil Pump & Bolts
Courtesy of GENERAL MOTORS COMPANY
NOTE:

Inspect the oil pump and engine block oil gallery passages. These surfaces must be clear and free of debris or restrictions.

1. Align the splines of the crankshaft sprocket and the oil pump drive gears, and install the oil pump (413).
2. Install the oil pump onto the crankshaft sprocket until the pump housing contacts the face of the engine block.
3. Install the oil pump bolts (411). Do not tighten the bolts at this time.
Fig 2: Aligning The Oil Pump Surfaces With The Engine Block Surfaces
Courtesy of GENERAL MOTORS COMPANY
4. Align the oil pump surfaces (1) with the engine block surfaces (2). The oil pump must be aligned flush or no greater than 0.1 mm (0.04 in) below the engine block oil pan rail.
Fig 3: Installing The J 41480 And Bolts To The Engine Block
Courtesy of GENERAL MOTORS COMPANY
CAUTION:

Refer to Fastener Caution .

5. Install the J 41480  cover alignment and bolts to the engine block. Tighten the J 41480  cover alignment bolts to 25 N.m (18 lb ft).
6. Firmly push the oil pump until the pump surfaces contact the J 41480  cover alignment. Continue to retain the pump to the J 41480  cover alignment. Tighten the oil pump bolts to 25 N.m (18 lb ft).
Fig 4: Crankshaft Oil Deflector & Nuts
Courtesy of GENERAL MOTORS COMPANY
7. Install the crankshaft oil deflector (425) and nuts (403). Install the deflector onto the engine with the word "Rear" at the back of the engine block. Tighten the crankshaft oil deflector nuts to 25 N.m (18 lb ft).