Operation CHARM: Car repair manuals for everyone.

Bi-Fuel Models

BI-FUEL MODELS ONLY

REMOVAL

WARNING:
^ AVOID INHALING PROPANE GAS OR OCCUPYING CONFINED AREAS CONTAINING PROPANE. PROPANE IS HEAVIER THAN AIR. THE HEAVIER GAS CAN DISPLACE OR PUSH FRESH AIR OUT OF AN AREA. IN LARGE QUANTITIES, PROPANE CAN DISPLACE ENOUGH OXYGEN TO MAKE THE SURROUNDING AIR UNFIT TO BREATHE AND POSSIBLY CAUSE ILLNESS. IF A PERSON BREATHES PROPANE GAS OR AIR THAT LACKS OXYGEN DUE TO THE PRESENCE OF PROPANE GAS, HEADACHE, DIZZINESS, AND WEAKNESS IN THE EXTREMITIES CAN OCCUR. IN SEVERE CASES, PROLONGED BREATHING OF PROPANE-FOULED AIR CAN CAUSE SUFFOCATION. IN THE EVENT OF ILLNESS FROM INHALING PROPANE GAS, MOVE THE VICTIM IMMEDIATELY TO FRESH AIR AND CONTACT A PHYSICIAN OR MEDICAL EMERGENCY PERSONNEL FOR ARTIFICIAL RESPIRATION OR OTHER REQUIRED TREATMENT.
^ DO NOT NEEDLESSLY VENT PROPANE FUEL DURING SERVICE, AND DO NOT OPEN THE 80% STOP-FILL VALVE WHILE A VEHICLE IS INSIDE A BUILDING. WHEN SERVICING THE FUEL SYSTEM, FOLLOW THE RECOMMENDED PROCEDURES TO SHUT OFF THE FUEL TANKS AND RUN THE ENGINE OUT OF FUEL BEFORE DISCONNECTING THE FUEL SYSTEM COMPONENTS. IF THE FUEL TANK(S) ARE BEING SERVICED, HAVE THE FUEL EVACUATED BY TRAINED PERSONNEL AT A LOCAL PROPANE FUEL STATION. LIQUID PROPANE FUEL VAPORIZES AT NORMAL BAROMETRIC PRESSURE AT TEMPERATURES ABOVE -42°C (-44°F), AND EXPANDS TO 270 TIMES ITS VOLUME AS A LIQUID. UNNECESSARY VENTING OF PROPANE FUEL CAN CREATE FIRE AND HEALTH HAZARDS WHICH COULD CAUSE PERSONAL INJURY OR DEATH.
^ BE ALERT FOR SITUATIONS THAT MAY CAUSE THE PROPANE FUEL SYSTEM TO VENT FUEL. THESE INCLUDE EXTREMELY HOT DAYS, PARKING NEAR A SPACE HEATER, OR HOISTING A VEHICLE UP NEAR A CEILING HEATER. RELEASE OF PROPANE FUEL IN A CONFINED AREA THROUGH THE PRESSURE RELIEF VALVE COULD OCCUR. THE RELEASE OF PROPANE FUEL IN A CONFINED AREA COULD RESULT IN AN ACCUMULATION OF FLAMMABLE VAPORS. IF FUEL IS VENTED NEAR A HEAT SOURCE, A FIRE OR EXPLOSION COULD OCCUR.
^ DO NOT USE PAINT DRYING OVENS FOR PROPANE-FUELED VEHICLES. THE HEAT OF PAINT DRYING OVENS WILL INCREASE THE PRESSURE IN THE FUEL TANKS. THIS COULD CAUSE VENTING OF PROPANE FUEL VAPOR INTO THE OVEN AND RESULT IN A FIRE FROM THE HEAT OR SPARKS IN THE ELECTRICAL EQUIPMENT. IF THE FUEL IS CONFINED INSIDE AN OVEN AN EXPLOSION MAY OCCUR. WHEN REFINISHING THE BODY PANELS OF A PROPANE FUELED VEHICLE USE SPOT PAINTING AND DRYING METHODS.
^ IF A CONFINED AREA, SUCH AS A LUBRICATION PIT, HAS BEEN SUBJECTED TO PROPANE GAS THE AREA SHOULD BE INSPECTED FOR ADEQUATE OXYGEN LEVELS BY A LOCAL HEALTH DEPARTMENT BEFORE BEING ENTERED OR PERSONAL INJURY OR DEATH MAY OCCUR.
^ THE FUEL SYSTEM PRESSURE MUST BE RELIEVED BEFORE ANY COMPONENT CAN BE REMOVED. THE FUEL TANKS MUST BE EVACUATED PRIOR TO TANK REMOVAL. REMOVAL OF COMPONENTS WITHOUT PRESSURE RELIEF OR TANK EVACUATION CAN CAUSE PROPANE FUEL TO ESCAPE INTO THE AIR AND CAUSE INJURY OR DEATH.


1. Relieve the fuel system pressure in the liquid propane fuel system.
2. Relieve the fuel system pressure in the gasoline fuel system.
3. Remove the engine air cleaner and outlet tube as an assembly.
4. Remove the compuvalve. For additional information, refer to Fuel Delivery Valve Assembly.
5. Remove the gasoline fuel injection supply manifold.







6. Disconnect the radio interference capacitors.







7. Remove the fuel line.







8. Disconnect the heater hose.







9. Remove the bolts.







10. Remove the four bolts and remove the fuel injection supply manifold.
11. If necessary, remove the fuel injectors.

INSTALLATION
1. Inspect and install new O-ring seals as necessary.

CAUTION:
^ Use propane fuel approved O-ring seals only. Use of non-approved O-ring seals could result in fuel leaks.
^ Do not use silicone based lubricants on the O-ring seals. Damage to the vehicle may occur.

NOTE: Lubricate the O-ring seals with Super Premium SAE 5W30 Motor Oil XO-5W30-QSP or equivalent meeting Ford specification WSS-M2C153-G.

2. If necessary, install the fuel injectors.







3. Install the fuel injection supply manifold and install the four bolts.







4. Install the bolts.







5. Connect the heater hose.







6. Install the fuel line.







7. Connect the radio interference capacitors.
8. Install the vaporizer and bracket assembly. For additional information, refer to Fuel Heater.
9. Install the gasoline fuel injection supply manifold.
10. Install the compuvalve. For additional information, refer to Fuel Delivery Valve Assembly.
11. Install the engine air cleaner and outlet tube as an assembly.
12. Pressurize the fuel system for the liquid propane fuel system.
13. Leak test the liquid propane fuel system.