Mercury MerCruiser MCM 502 Mag MPI

FUEL DELIVERY SYSTEM FOR ELECTRONIC FUEL INJECTION SERVICE MANUAL NUMBER 23
Page 5A-20 90-861326--1 MARCH 1999
Vacuum Line Routing
454/502 MPI and 8.2L MPI Models With MEFI 1
75739
a
b
c
e
f
g
h
i
d
a-Plenum
b-Cool Fuel Assembly
c-Vacuum Hose - T-Fitting to Fuel Pressure Regulator on Cool Fuel Assembly
d-Vent Hose - Valve Cover to Throttle Body Flame Arrestor
e-Vent Hose - Front of Plenum to PCV Valve
f-Vacuum Hose - Fuel Pressure Damper to T-Fitting
g-Vacuum Hose - T-Fitting to Plenum
h-T-Fitting
i-Front of Engine
7.4L MPI Models With MEFI 2
75740
a
b
c
d
e
f
g
h
i
a-Plenum
b-Cool Fuel Assembly
c-Vacuum Hose - T-Fitting to Fuel Pressure Regulator on Cool Fuel Assembly
d-Vent Hose - Valve Cover to Throttle Body Adapter
e-Vent Hose - Front of Plenum to PCV Valve
f-Vacuum Hose - Fuel Pressure Damper to T-Fitting
g-Vacuum Hose - T-Fitting to Plenum
h-T-Fitting
i-Front of Engine
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