Fuel
System
Replacement Procedures
Page
14-14
Fuel
System
DODGETurbo
Diesel
Fuel
Drain
Manifold
The fuel system Is designed to use fuel to cod and lubricate
the injection pump and injectors. Fuel is continually vented
from
the injection pump and a
small
amount of
fuel
leaks by the
injector needle valve during injection. This fuel is returned to
the supply tank by the fuel drain manifold.
^ ] Restricting the fuel drain manifold
raises
the
case
pressure of
the injection pump
which
can prevent injection.
If the engine will restart after a waiting period following an
unexplained shut down, look for a restriction of the manifold
drain line.
Note:
Restriction can
cause
the fuel temperature to rise
reducing power
from
the engine.
Fuel
System Replacement Procedures
A
certain amount of air will be entrapped In the
system
during
replacement of any of the system components. After
replacement of a component, bleed the system according to
the following procedure.
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