DIRECT FUEL INJECTION
Page 3B-37
90-888438 JUNE 2002
5. As fuel rail is removed, use a flat tip screw driver to hold direct injectors in cylinder
head.
56121
a
b
b
a
b
b
a-Fuel Rail b-Direct Injectors
The starboard fuel rail contains 3 fuel injectors and a tracker valve.
The port fuel rail contains 3 fuel injectors, 1 fuel regulator, and 1 air regulator.
NOTE: Each fuel/air inlet or outlet hose adaptor has 2 o-ring seals. These o-rings should
be inspected for cuts or abraisions and replaced as required when fuel rail is disas-
sembled for cleaning.
57971
a
a
a
a
a
a
b
c
d
e
i
j
g
h
f
a-Fuel Injector
b-Fuel Regulator
c-Air Regulator
d-Tracker Valve
e-Coolant Inlet to Expan-
sion Chamber
f-Return Fuel to VST
g-Water Inlet for Cooling
Fuel Rail
h-Excess Air to Adaptor
Plate
i-90 psi (616 kPa) Fuel
j-80 psi (547.8 kPa) Air
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