03·04A·5
Fuel Charging and Controls-3.8L
03-o4A-5
DESCRIPTION AND OPERATION (Continued)
Fuel Injection Supply Manifold
The fuel injection supply manifold (9F792) delivers
high-pressure fuel from the vehicle fuel supply line to
the fuel injectors. The fuel injection supply manifold
consists of the following:
•
a tubular fuel rail
•
fuel injector connectors
•
a mounting flange to the fuel pressure regulator
(9C968)
•
mounting attachments which locate the fuel injection
supply manifold and provide fuel injector retention
•
fuel inlet and outlet connections with push connect
fittings
V9238-B
Part
Item
Number
Description
1
90930
Fuel Charging Wiring
2
9C968
Fuel Pressure Regulator
3
N60669 1-S2
Bolt
4
N8051 17-S8M
Bolt (4 Req'd)
5
9F593
Fuel Injector
6
9F792
Fuel Injection Supply
Manifold
(Continued)
Part
Item
Number
Description
A
-
Tighten to 20-30 N-m ( 15-22
Lb-Ft)
B
-
Tighten to 8- 1 1 N·m (7 1-97
Lb-ln)
Fuel Pressure Regulator
The fuel pressure regulator (9C968):
•
is mounted on the fuel injection supply manifold
(9F792) downstream of the fuel injectors.
•
regulates the fuel pressure supplied to the fuel
injectors .
•
is a diaphragm-operated relief valve in which one
side of the diaphragm senses fuel pressure and the
other side is subjected to intake manifold vacuum.
•
nominal fuel pressure is established by a spring
preload applied to the diaphragm.
•
balances one side of the diaphragm with manifold
pressure to maintain a constant fuel pressure drop
across the fuel injectors.
•
bypasses and returns excess fuel to the fuel tank
(9002) ..
Part
Item
Number
Description
1
-
Engine Vacuum Reference
Tube (Part of 9C968)
2
-
Ball Seat (Part of 9C968)
3
-
Spring (Part of 9C968)
4
-
Upper Housing (Part of
9C968)
(Continued)
1997 Thunderbird, Cougar July 1 996
Содержание Thunderbird
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