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Secondary Fuel Filter
• The secondary filter is a top-loaded,
engine-mounted fuel filter. Fuel enters the
filter housing under pressure from the fuel
pump through the inlet line and banjo bolt.
Fuel passes through the 4-micron filter
element and through the filter stand pipe to
enter the two fuel lines to the cylinder heads.
• The filter standpipe contains a valve that is
opened by the filter when it is installed in
the housing. Without the filter in place,
sufficient fuel will not pass through the
system for correct engine operation.
Fuel Pressure Regulator Valve
• The fuel pressure regulator is located
between the fuel filter housing and the oil
filter housing. Fuel pressure pushes the
regulator piston against the regulator
spring. When fuel pressure exceeds 45
psi, the regulator begins to open and fuel
passes back to the horizontal fuel
conditioning module.
• The fuel filter housing contains an air bleed
to allow any air in the system to pass back
to the fuel tank.
Fuel Inlet Check Valves
• Fuel passing through the filter enters steel
lines that lead to the right and left bank
cylinder heads. Each line is attached to the
cylinder head with a banjo bolt that
contains a one-way check valve and a
small orifice. The orifice and check valve
minimizes pressure pulses in the fuel rail,
resulting in smoother delivery of fuel to
the injectors.
• Each fuel line fitting is sealed to the
cylinder head by two copper gaskets that
must be replaced if the bolt is removed.
FUEL SUPPLY SYSTEM
International
®
VT 275 V6 Engine
FFIILLTTEER
R EELLEEM
MEEN
NTT
FFIILLTTEER
R EELLEEM
MEEN
NTT
AAIIR
R B
BLLEEEED
D H
HO
OLLEE
AAIIR
R B
BLLEEEED
D H
HO
OLLEE
IIN
NLLEETT B
BAAN
NJJO
O
IIN
NLLEETT B
BAAN
NJJO
O
B
BO
OLLTT
B
BO
OLLTT
FFU
UEELL R
REETTU
UR
RN
N
FFU
UEELL R
REETTU
UR
RN
N
R
REEG
GU
ULLAATTO
OR
R P
PIIS
STTO
ON
N
R
REEG
GU
ULLAATTO
OR
R P
PIIS
STTO
ON
N
FFU
UEELL TTO
O C
CYYLLIIN
ND
DEER
R
FFU
UEELL TTO
O C
CYYLLIIN
ND
DEER
R
H
HEEAAD
DS
S
H
HEEAAD
DS
S
R
REEG
GU
ULLAATTO
OR
R S
SP
PR
RIIN
NG
G
R
REEG
GU
ULLAATTO
OR
R S
SP
PR
RIIN
NG
G
B
BAAN
NJJO
O B
BO
OLLTT
FFIILLTTEER
R
H
HO
OU
US
SIIN
NG
G
Содержание VT 275 V6
Страница 1: ...VT 275 V6 ENGINE model year 2005...
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Страница 110: ...110 International VT 275 V6 Engine NOTES...
Страница 111: ...111 International VT 275 V6 Engine NOTES...
Страница 112: ...2005 INTERNATIONAL TRUCK AND ENGINE CORPORATION TMT 120502 PRINTED IN THE U S A...