Notice: If the valve lifters and anti-rotation brackets are not installed properly,
the valve lifters, the anti-rotation brackets, and the engine could be damaged.
Important: When installing new valve lifters, coat the lifters with engine assembly
prelube GM P/N 1052367 or equivalent.
- Install the valve lifters in the lifter bores.
• | Align the flat sides of the lifters with the flat sides of the
lifter guides. |
• | When properly aligned, the flat side of each lifter is aligned
parallel to the lifter guide. |
• | The roller at the bottom of each lifter is aligned parallel to
the camshaft lobe. |
- Install the lifter guides on the valve lifters.
Notice: 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 screws
that retain the lifter guides.
Tighten
Tighten the lifter guide bolts to 11 N·m (97 lb in).
- Install the cylinder head. Refer to
Cylinder Head Replacement
.