Lifter / Lash Adjuster: Service and Repair

Fig. 7 Hydraulic Valve Lifter:

1. Disconnect secondary ignition wires from spark plugs using wire remover T74P-6666-A or equivalent. Remove ignition wire routing clips from rocker arm cover attaching bolt studs and position wires aside.
2. Remove intake manifold, refer to INTAKE MANIFOLD.
3. Remove rocker arm covers. On engines with stud mounted rocker arms, loosen stud nuts and rotate rocker arms to one side. On other engines, remove fulcrum bolt, fulcrum, rocker arm and fulcrum guide (if used).
4. Remove pushrods in sequence so they can be installed in their original bores.
5. Remove lifter guide retainer bolts, retainer and guide plate, if equipped.
6. Using a magnet rod, remove lifters and place in a numbered rack so they can be installed in their original bores. If lifters are stuck in bores by excessive varnish, etc., it may be necessary to use a plier-type tool to remove. Rotate lifter back and forth to loosen from gum or varnish.
7. The internal parts of each lifter are matched sets. Do not intermix parts. Keep assemblies intact until they are to be cleaned, Fig. 7.