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 Figure 3-1. Cylinder head removal and installation.
(4) Disconnect fuel return line between fuel
(6) Disconnect air start line (fig. 3-1) between
injector valve and fuel return manifold. Remove line.
air start valve and starting air distributor. Back off the
three stud nuts holding starting air valve to cylinder
CAUTION
head. Lift air starting valve from the cylinder head.
When all fuel injector valves are to be
NOTE
removed for overhaul, dip the spray
It may be necessary to use a pry bar
tip in clean fuel oil. Do not allow
to break the air starting valve loose
spray tips to dry as damage may
from the cylinder head. Place the air
result if they are stored for any
starting valve in a wooden rack.
length of time.
(7) Remove the safety relief valve by turning
(5) Back of both nuts holding fuel injector valve
the valve cage and nipple counterclockwise. Lift valve
from cylinder head. Store in a safe place where it will
the tapped holes provided in the injector valve body.
not be damaged.
Turn jackscrews clockwise, keeping an even pressure,
(8) Disconnect the air line below the
and jack the fuel injector free of the cylinder head.
compression relief valve (fig. 3-2). Do not remove the
Place the injector valve in a rack and wrap the spray tip
compression relief valve at this time.
with a clean lint free cloth. Wet cloth with clean fuel oil.
3-21
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