Installation Procedure

WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Valve Stem Keys, Valve Spring Cap & Valve Spring

Courtesy of GENERAL MOTORS CORP.

Clean the cylinder head valve spring seat area.
Lubricate the valve guide and valve stem oil seal with clean engine oil.
Install the valves (228) into the proper port.
Install the valve stem oil seal (222).
Install the valve spring (223).
Install the valve spring cap (224).

Fig 2: Compressing Valve Spring

Courtesy of GENERAL MOTORS CORP.

Compress the valve spring using the J 38606 .
Install the valve keys.
- Use grease in order to hold the valve keys in place.
- Make sure the keys seat properly in the groove of the valve stem.
- Carefully release the valve spring pressure, making sure the valve keys stay in place.
- Remove the J 38606 .
- Tap the end of the valve stem with a plastic faced hammer to seat the keys, if necessary.

Fig 3: View Of J 22794

Courtesy of GENERAL MOTORS CORP.

Remove the J 22794 from the spark plug port.

Fig 4: View Of Spark Plug

Courtesy of GENERAL MOTORS CORP.

CAUTION: Refer to Fastener Caution .

Hand start the spark plug.
Tighten: Tighten the spark plug to 15 N.m (11 lb ft).
Install the spark plug wires at the ignition coil.
Install the spark plug wire to the spark plug.
Inspect the wires for proper installation:
- Push sideways on each boot in order to check for proper installation.
- Reinstall any loose boot.
Install the rocker arm. Refer to Valve Rocker Arm and Push Rod Replacement .