Mercury MerCruiser MCM 454 Mag MPI Service Manual page 454

SERVICE MANUAL NUMBER 23
MEFI 2 FUEL COOLER TO FUEL RAIL LINE INSTALLATION
5. On 7.4L MPI: Install the cooler-to-fuel rail line as follows:
6. Install distributor cap.
7. Connect vacuum line to fuel pressure regulator.
8. Attach engine harness electrical connector to fuel pump harness connector.
DO NOT operate engine without cooling water being supplied to seawater pickup
pump, or pump impeller will be damaged and subsequent overheating damage may
result.
9. Connect seawater hoses to Cool Fuel system. Tighten hose clamps securely.
10. Unplug and connect seawater inlet hose. Open seacock, if so equipped.
11. Unplug and connect fuel tank supply inlet hose. Tighten hose clamp securely. Open fuel
When installing battery, be sure to connect POSITIVE (+) battery cable to POSITIVE
(+) battery terminal FIRST, and NEGATIVE (–) battery cable to NEGATIVE (–) battery
terminal LAST. If battery cables are reversed, or connection order is reversed,
electrical system damage will result.
12. Clean battery cable clamps and terminals and reconnect cables (see CAUTION listed
13. Start the engine and check for fuel and water leaks. Stop the engine immediately if any
14. Install cool fuel system cover.
Make sure no leaks exist before closing engine hatch.
Index
90-861326--1 MARCH 1999
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a. Route the fuel line to the back side of engine.
b. Connect the fuel line to the fuel rail fitting at location shown. Tighten it securely.
a
a - Fuel Line, Fuel Cooler-to-Fuel Rail
b - Fuel Rail Fitting
shutoff valve, if so equipped.
above). Secure each cable clamp when connecting. Coat terminals with a battery termi-
nal anti-corrosion spray to help retard corrosion.
leaks exist. Make necessary corrections.
FUEL DELIVERY SYSTEM FOR ELECTRONIC FUEL INJECTION
b
CAUTION
CAUTION
WARNING
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