1.Disconnect and isolate the negative battery cable.
2. Remove the cylinder head. Refer to CYLINDER HEAD, REMOVAL.
CAUTION: If the lifter and retainer assembly are to be reused, identify the lifters to ensure installation in their original location or engine damage could result.
CAUTION: The lifter and retainer assembly must be installed as a unit.
3. Remove the lifters (2) and retainer (1) as an assembly.
4. Check the camshaft lobes for abnormal wear.