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REPAIR INSTRUCTIONS, PART 1
295
Figure 295 — Engine Brake Oil Control Valve Pipe
Installation
296
Figure 296 — Engine Brake Oil Control Valve Installation
4. Assemble the valve mounting plate on the
cylinder head.
5. Using a torque wrench, tighten the attaching
screws according to specification.
6. Lubricate and assemble the seals on each
end of the oil pipe.
7. Insert the small end of the oil pipe in the
control valve.
The oil pipe has a flange and a bead at each end.
While the flanges are the same size, the beads
differ. One bead is 15.4 mm and the other bead is
17.3 mm. Insert the small diameter (15.4 mm)
bead end of the oil pipe into the oil hole of the
control valve. Position the large diameter
(17.3 mm) bead end of the pipe towards the
rocker arm shaft.
If the oil pipe is installed incorrectly with the large
end in the control valve and the small end in the
rocker arm, oil leaks will occur. This may cause oil
starvation in the rocker arms which can result in
engine failure.
8. Ensure the oil seal is in place at the bottom
of the valve assembly.
9. Position the valve assembly on the mounting
plate and insert the large end of the oil pipe
in the rocker arm shaft. Press on the control
valve with the heal of your hand to seat the
large end of the pipe in the rocker arm shaft.
10. Insert the attaching screws and tighten them
according to specification.
1. Engine Brake Control
Valve
2. Oil Pipe
3. Rocker Arm Shaft
1. Engine Brake Control
Valve
2. Mounting Plate Attaching
Screw
3. Oil Seal (between Valve
and Mounting Plate)
4. Mounting Plate
5. Oil Pipe
6. Valve Attaching Screw
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