Valve Lifter Installation

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Important: When using the valve lifters again, install the lifters to their original locations.

If camshaft replacement is required, the valve lifters must also be replaced.

Lubricate the valve lifters and engine block valve lifter bores with clean engine oil.
Insert the valve lifters into the lifter guides.
Align the flat area on the top of the lifter with the flat area in the lifter guide bore. Push the lifter completely into the guide bore.

Fig 1: Inserting Valve Lifters Into Lifter Guides
Courtesy of GENERAL MOTORS CORP.
Install the valve lifters and guide assembly to the engine block.
CAUTION: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
Install the valve lifter guide bolt (1).
Tighten

Tighten the valve lifter guide bolt to 12 N.m (106 lb in).

Fig 2: Installing Valve Lifters/Guide Assembly & Guide Bolt
Courtesy of GENERAL MOTORS CORP.