Hydraulic Lifter Replacement - GMC G Service Manual

6A4-10 SMALL BLOCK
C. Forward
D. RTV Sealant
Figure 9 — Intake Manifold Bolt Tightening
Sequence
HYDRAULIC LIFTER
REPLACEMENT
H Remove or Disconnect (Figures 10 and 11)
Tools Required:
J 3049 Hydraulic Lifter Remover (Plier Type) or
J 9290-01 Hydraulic Lifter Remover (Slide
Hammer Type)
1. Rocker arm cover. Refer to "Rocker Arm Cover
Replacement" in this section.
Figure 8 — Intake Manifold
2. Intake manifold. Refer to "Intake Manifold Replace­
ment" in this section.
3. Pushrods. Refer to "Rocker Arm and Pushrod
Replacement" in this section.
4. Hydraulic lifters.
• Remove the hydraulic lifters one at a time and
• A stuck hydraulic lifter can be removed using
| y | Inspect
• Hydraulic lifter body for scuffing and scoring. If the
lifter body wall is worn or damaged, the mating bore in
the block should also be checked.
• Check the fit of each hydraulic lifter in its mating bore
in the block. If the clearance is excessive, try a new
lifter.
• The hydraulic lifter foot must be smooth and slightly
convex. If worn, pitted, or damaged, the mating cam­
shaft lobe should also be checked.
Hydraulic Lifter Repair
• Refer to the 1988 Light Duty Trucks Unit Repair
Manual.
place them in an organizer rack. Each lifter
must be installed in the same bore from which it
was removed.
J 3049 (figure 10) or J 9290-01 (figure 11).
B-07915