Rocker Arm Cover Removal; Intake Manifold Removal; Valve Train Component Removal - GMC 1990 Light Truck Repair Manual

6A3-6 4.3 LITER V-6

ROCKER ARM COVER REMOVAL

|<~+| Remove or Disconnect (Figure 3)
1. Rocker arm cover bolts.
2. Rocker arm cover and gaskets.

INTAKE MANIFOLD REMOVAL

Remove or Disconnect
1. Intake manifold bolts.
2. Intake manifold and gaskets.
Figure 4—Valve Train Components
VALVE TRAIN COMPONENT
Remove or Disconnect (Figure 4)
1. Rocker arm nuts, balls, rocker arms, and pushrods.
2. Bolts (40).
3. Retainer (41) with restrictors (46).
4. Hydraulic lifters.
40. Bolt
41. Retainer
42. Nuts
43. Balls
44. Rocker Arms
45. Pushrods
46. R estrictor
47. H ydraulic Lifter
REMOVAL
9
Important
Store used components in order so they can
be reassembled in the same location.
• Remove the lifters one at a time and place
them in an organizer rack. The lifters must be
installed into the same bore from which they
were removed.
B-07611