Oil Pump Installation

WARNING: This page is about a different car, the 2010 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.

Special Tools

J 45059: Angle Meter

For equivalent regional tools, refer to Special Tools .

Fig 1: Oil Pump& Bolts

Courtesy of GENERAL MOTORS CORP.

Install the oil pump drive spacer into the oil pump so that the drive flat engages the pump rotor.
Position the oil pump on the crankshaft.
Install the retaining bolts.

Fig 2: Identifying Oil Pump Bolt Tightening Sequence

Courtesy of GENERAL MOTORS CORP.

CAUTION: Refer to Fastener Caution .

Apply upward pressure on the pump while tightening the three retaining bolts. Tighten the bolts in the sequence (1, 2, 3) shown.
1. First Pass
  Tighten the oil pump mounting bolts in sequence to 10 N.m (89 lb in) .
2. Final Pass
  Tighten the oil pump mounting bolts in sequence an additional 35 degrees using the J 45059: meter .