Suburban 3/4 Ton 4WD V8-305 5.0L (1986)
-VALVE BODY
8.
Slowly release pressure on the valve train and remove it from the valve body. A small flat blade screwdriver may be sued to remove the bushing
from the bore. (Refer to Figure 3)
DO NOT USE EXCESS FORCE TO REMOVE VALVES OR BUSHINGS
9.
Place the valve train on a clean surface in the exact sequence as it was removed from the valve body. Follow the procedures in steps #7, #8 and #9
to remove all valves and bushings from the valve body. (Layout of the valves, springs and bushings on a clean, lint free towel will help to keep
parts organized.)
10.
Remove pressure switches, pipe plugs and T.C.C. solenoid, if applicable.
11.
Clean one valve train at a time by washing the valves, springs and bushings in clean solvent and drying with compressed air.
12.
Clean the valve body casting with clean solvent and dry with compressed air.
Inspection of Control Valve Assembly Components
1.
Inspect the valve body casting for:
^
Cracks
^
Porosity
^
Damaged machined surfaces
^
Nicks or burrs in valve bores
^
Flatness of valve body to case mating surface (using a straight edge or by inspecting the gaskets for uniform compression)
2.
Inspect valves for:
^
Burrs
^
Nicks
^
Scratches
^
Scoring
3.
Inspect valve bushings for:
^
Porosity
^
Burrs
^
Nicks
^
Scratches
