Special Tools

J 45059:  Angle Meter

For equivalent regional tools, refer to Special Tools

Fig 1: Identifying Proper Cylinder Head Gasket Installation
Courtesy of GENERAL MOTORS CORP.
CAUTION: Head gaskets are specific for right hand and left hand applications, and also must be installed with the correct side facing up. Note the markings (1) on the head gaskets for proper installation. Failure to do so may lead to engine damage.
CAUTION: This component uses torque-to-yield bolts. When servicing this component do not reuse the bolts, New torque-to-yield bolts must be installed. Reusing used torque-to-yield bolts will not provide proper bolt torque and clamp load. Failure to install NEW torque-to-yield bolts may lead to engine damage.
1. Install the cylinder head locator dowel pins, if necessary.
2. Inspect the cylinder head locator dowel pins for proper installation.
Fig 2: View Of Cylinder Head Gasket And Alignment Pins
Courtesy of GENERAL MOTORS CORP.
3. Install the cylinder head gasket.
Fig 3: View Of Cylinder Head & Bolts
Courtesy of GENERAL MOTORS CORP.
4. Install the cylinder head.
Fig 4: View Of Cylinder Head Bolt Tightening Sequence
Courtesy of GENERAL MOTORS CORP.
CAUTION: Refer to Fastener Caution .
5. Install the NEW small hex cylinder head bolts (5 and 8).
6. Install the NEW large hex cylinder head bolts (1, 2, 3, 4, 6 and 7).
   1. Tighten the cylinder head bolts a first pass in sequence to 60 N.m (44 lb ft).
   2. Tighten the cylinder head bolts a final pass in sequence to 140 degrees using the J 45059:  meter.