Engine Valley Cover Installation

Important:  All gasket surfaces should be free of oil or other foreign material during assembly.

1. Install NEW knock sensor oil seals (1) into the valley cover (2).

   Lubricate the seal surfaces with clean engine oil.

   Fig 1: Installing Knock Sensor Oil Seals Into Valley Cover

   Courtesy of GENERAL MOTORS CORP.
2. Install the valley cover and NEW gasket - LS1.
   Fig 2: Installing Valley Cover And Gasket - LS1

   Courtesy of GENERAL MOTORS CORP.
3. Install the valley cover and NEW gasket - LS6.
   Fig 3: Installing Valley Cover And Gasket - LS6

   Courtesy of GENERAL MOTORS CORP.
   NOTE: Refer to FASTENER NOTICE .
4. Install the valley cover bolts.

   Tighten 

   Tighten the valley cover bolts to 25 N.m (18 lb ft).

5. Install the knock sensors.

   Tighten 

   Tighten the knock sensors to 20 N.m (15 lb ft).

   Fig 4: Installing Knock Sensors

   Courtesy of GENERAL MOTORS CORP.
6. Install the knock sensor wire harness.
   Fig 5: Installing Knock Sensor Wire Harness

   Courtesy of GENERAL MOTORS CORP.