Assembly - GMC T Series 1994 Repair Manual

• Rocker arm stud to 47 N-m (35 lbs. ft.).
Pressed-ln Studs
Remove or Disconnect (Figure 32)
Tool Required:
J 5802-01 Rocker Arm Stud Remover
Rocker arm stud.
A. Place J 5802-01 over the rocker arm stud.
B. Install a nut and flat washer.
C. Turn the nut to remove the stud.
-► 4-
Install or Connect (Figure 33)
Tools Required:
J 5715 Reamer (0.003-inch oversize) or
J 6036 Reamer (0.013-inch oversize)
J 6880 Rocker Arm Stud Installer
NOTICE: Do not attempt to install an oversize
rocker arm stud without reaming the stud
hole as this could damage the cylinder head.
1. Ream the hole to the proper size for the replace­
ment oversize rocker arm stud.
• J 5715 for 0.003-inch oversize studs.
• J 6036 for 0.013-inch oversize studs.
2. Lightly lubricate lower end (press-fit area) of rocker
arm stud with hypoid axle lubricant.
3. Rocker arm stud.
A. Use J 6880 (figure 33).
B. Stud is installed to proper depth when the tool
bottoms on the cylinder head.

ASSEMBLY

Install or Connect (Figures 30, 31, 34, and 35)
Tools Required:
J 8062 Valve Spring Compressor
J 23738-A Vacuum Pump
1. Valves (27 and 29).
A. Lubricate the valve stems with engine oil.
B. Insert the valves into the proper valve guides
until the face of the valve contacts the valve
seat.
2. Seal (24) (intake valves only).
A. Install the seal (24) over the valve stem (27).
B. Hold the valve (27) against the valve seat.
C. Push the seal (24) down the valve stem (27)
until it bottoms out against the head.
3. Springs (26) and dampers (25).
4. Shields (22).