Cylinder Head Installation - Right Side (LF4)

Special Tools 

EN-45059  Angle Meter

For equivalent regional tools, refer to Special Tools (LF4) .

1. Courtesy of GENERAL MOTORS COMPANY

   Install the fuel injection fuel rail noise shield-lower (1).

2. Courtesy of GENERAL MOTORS COMPANY

   Ensure the cylinder head locating pins are securely mounted in the cylinder block deck face.

3. Install a NEW right cylinder head gasket (1) using the deck face locating pins for retention.

4. Courtesy of GENERAL MOTORS COMPANY

   Align the right cylinder head (2) with the deck face locating pins.

5. Place the right cylinder head in position on the deck face.
6. Fig 1: Identifying Cylinder Head Bolts With Tightening Sequence - Right Side (LF4)

   Courtesy of GENERAL MOTORS COMPANY
   CAUTION:

   Refer to Fastener Caution .

   CAUTION:

   This vehicle is equipped with torque-to-yield or single use fasteners. Install a NEW torque-to-yield or single use fastener when installing this component. Failure to replace the torque-to-yield or single use fastener could cause damage to the vehicle or component.

   NOTE:

   DO NOT allow oil on the cylinder head bolt bosses.

   Install the NEW M11 cylinder head bolts (1).

   1. Tighten the M11 cylinder head bolts a first pass in sequence to 30 N.m (22 lb ft).
   2. Tighten the M11 cylinder head bolts a second pass in sequence an additional 150 degrees using the EN-45059  meter.
7. Install the NEW M8 cylinder head bolt (2).
   1. Tighten the M8 cylinder head bolt a first pass to 15 N.m (11 lb ft).
   2. Tighten the M8 cylinder head bolt a second pass an additional 75 degrees using the EN-45059  meter.