Installation Procedure

WARNING: This page is about a different variant/trim than selected.

Courtesy of GENERAL MOTORS COMPANY

Install the fuel injection pump sprocket (2) to the fuel injection pump (1). Ensure the fuel injection pump shaft wedge (5) and the fuel injection pump driven sprocket groove (4) are aligned.
Pre-install the fuel injection pump driven sprocket nut (3).
Courtesy of GENERAL MOTORS COMPANY

Remove the pressure spindle (1) from the EN-50885-2 locking tool (2).
Courtesy of GENERAL MOTORS COMPANY

Install the EN-50885-2 locking tool.
1. Install the housing (3) to the fuel injection pump driven sprocket nut (2). Ensure that the 3 tappets (1) mesh with the 3 slots of the fuel injection pump driven sprocket nut.
2. Position the ring (4) for a good handling.
3. Screw in the fixing tool (5) into the fuel injection pump driven sprocket nut.
Courtesy of GENERAL MOTORS COMPANY

Install a 1/2" extension (1) to the EN-50885-2 locking tool (2) to counterhold.

CAUTION:

Tighten the fuel injection pump driven sprocket nut to 64 N.m (47 lb ft).
Remove the EN-50885-2 locking tool.
Install the camshaft timing chain. Refer to Camshaft Timing Chain Replacement .
Install the engine sight shield. Refer to Engine Sight Shield Replacement .
Connect the battery negative cable. Battery Negative Cable Disconnection and Connection .