Direct Fuel Injection
90-8M0050731 MAY 2011 Page 3B-71
Air Compressor
Air Compressor Flow Diagram
a - Air inlet
b - Air filter
c - Compressor oil inlet
d - Oil to upper main bearing
e - Oil to lower crankshaft bearing
f - Compressor inlet
g - Compressor water inlet
h - Fuel pressure test valve
i - Port fuel rail
j - Excess fuel return to VST
k - Air pressure test valve
l - Excess air return to exhaust adapter plate
m - Water inlet to fuel rail
n - High‑pressure fuel hose
o - Air hose
p - Air regulator valve of 655 ± 14 kPa (95 ± 2 psi)
q - Fuel regulator valve of 751.5 ± 14 kPa (109 ± 2 psi)
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a
b
c
d
e
f
g
i
h
j
l
m
n
p
q
r
t
u
v
s
o
k
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