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Page Title:
Injection Pump and Turbosupercharger oil Hoses |
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 (2) Nozzle fuel return tubes and hoses.
Clean nozzle fuel return tubes and hoses
thoroughly. Inspect tube and hose connections
for cracks, or mutilated sealing surfaces. Inspect
hoses for pliability or signs of deterioration.
Note. Due to design change, there are two
types of fuel returns used on engines. Original
production engines had a rigid preformed metal
tube,
while
improved
design
engines
have
a
flexible
rubber
hose.
(3) Fuel injection pump fuel return hose.
Pressure check fuel injection pump fuel return
hose to a proof pressure of 200 psi. Replace
tubes that are unserviceable.
and nozzle fuel return tubes will be assembled
during engine assembly, Chapter 7.
Injection
Pump
and
Turbosuper-
charger
Oil
Hoses
a. Disassembly. The injection pump and
turbosupercharger oil hoses were disassembled
during disassembly of engine, Chapter 5.
b. Cleaning, Inspection, and Repair. Refer to
pump and turbosupercharger oil hoses for
cracks,
frayed
or
chafing
of
the
woven
metal
sheathing.
Pressure
check
the
turbosupercharger
oil inlet hose to a proof pressure of 300 psi.
Comparison
of
serviceable
Pressure check the turbosupercharger oil inlet
sleeves-injector
nozzle
tube
ends.
hose to a proof pressure of 200 psi and oil supply
hose to 160 psi. Check hose connections for
cracks
or
damage.
Replace
hose
connections
when pressure check indicates a leak or hose
damage
is
apparent.
c.
Assembly. Injection
pump
and
tur-
oil hoses will be assembled
bosupercharger
during engine assembly, Chapter 7.
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