FUEL DELIVERY
TABLE OF CONTENTS
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FUEL DELIVERY
STANDARD PROCEDURE - BLEEDING AIR
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FUEL FILTER / WATER SEPARATOR
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FUEL PUMP
DESCRIPTION - HIGH PRESSURE PUMP
DESCRIPTION - LOW PRESSURE PUMP
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INSTALLATION - HIGH PRESSURE PUMP
INSTALLATION - LOW PRESSURE PUMP
FUEL LINES
INSTALLATION - HIGH PRESSURE LINES
FUEL DELIVERY
STANDARD PROCEDURE - BLEEDING AIR
FROM FUEL SYSTEM
WARNING: NO SPARKS, OPEN FLAMES OR SMOK-
ING. RISK OF POISONING FROM INHALING AND
SWALLOWING FUEL. RISK OF INJURY TO EYES
AND SKIN FROM CONTACT WITH FUEL. POUR
FUELS ONLY INTO SUITABLE AND APPROPRI-
ATELY MARKED CONTAINERS. WEAR PROTECTIVE
CLOTHING.
(1) Remove engine cover (Refer to 9 - ENGINE -
REMOVAL).
(2) Press locking ring at bleeder valve in direction
of arrow and pull off seal.
(3) Press inlet connection into bleeder valve until
it locks.
(4) Connect line between inlet connection and res-
ervoir.
(5) Connect hand pump to vacuum side at reser-
voir.
(6) Operate hand pump until fuel flows through
line free of bubbles.
(7) Press locking ring at bleeder valve in direction
of arrow and detach inlet connection.
(8) Press seal into bleeder valve until it locks.
(9) Install engine cover (Refer to 9 - ENGINE -
INSTALLATION).
FUEL FILTER / WATER
SEPARATOR
DESCRIPTION
In order to assure trouble free operation with win-
ter grade diesel fuel, a preheater valve is located
with in the fuel filter. Depending on the temperature
of the heated return flow fuel, fuel flows back
through the preheating valve into the fuel filter to
heat up or flows directly back into the fuel tank.
OPERATION
PRE - HEATING Up to 45°C (113°F), the thermo
bimetal plate of the preheater, shuts off the return
fuel flow port to the fuel tank. The fuel from the rail
flows into the fuel filter to be warmed. If there is air
in the system, a ball seals off a port and the air is
directed to the fuel tank.
NON PRE - HEATING From above 45°C (113°F)
the thermo bimetal plate of the preheater, shuts off
the port to the fuel filter and fuel from the rail flows
directly into the return flow line to the fuel tank.
REMOVAL
WARNING: NO SPARKS, OPEN FLAMES OR SMOK-
ING. RISK OF POISONING FROM INHALING AND
SWALLOWING FUEL. RISK OF INJURY TO EYES
AND SKIN FROM CONTACT WITH FUEL. POUR
FUELS ONLY INTO SUITABLE AND APPROPRI-
ATELY MARKED CONTAINERS. WEAR PROTECTIVE
CLOTHING.
14a - 12
FUEL DELIVERY
WG