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Spectrum 3.0L GM - Page 245

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245
3. Install the filter gasket (6), new paper filter
element (7), new foam filter (8), and plastic
body (9).
4. Install the fuel inlet fitting (11) and O-ring (10).
Tighten to 18 to 20 N•m (13.3 to 14.75 ft.lbs.).
5. Connect the fuel inlet line to the LPG Regula-
tor.
6. Connect the negative battery cable.
7. Slowly open the fuel valve on tank.
IMPORTANT:
The fuel cylinder manual valve contains an
Excess Flow Check Valve. Open the manual
valve slowly to prevent activating the Excess Flow
Check Valve.
8. Turn the key to the ON position and back to
the OFF position to pressurize the fuel sys-
tem. Check for leaks.
9. Check for leaks at connections by using soapy
solution or electron leak detector. If leaks are
detected, make proper repairs.
10. Start engine and ensure correct operation in
all throttle ranges.
11. Check for leaks at connections by using soapy
solution or electron leak detector. If leaks are
detected, make proper repairs.
XIV. LOCK-OFF SOLENOID AND CARTRIDGE
1. Relieve the LPG fuel system pressure. Refer
to XVIII. LPG FUEL SYSTEM PRESSURE
RELIEF.
2. Disconnect negative battery cable.
3. Disconnect the electrical connector from the
lock-off solenoid.
4. Remove the nut and solenoid from the car-
tridge
5. Remove the cartridge from the LPG Regula-
tor.
INSTALLATION PROCEDURE
1. Install new cartridge into LPG Regulator. Tigh-
ten cartridge to 16 to 24 N•m (11.8 to 17.7
ft.lbs.).
2. Install solenoid and nut onto cartridge. Tigh-
ten nut to 7.85 N•m (69.5 in.lbs.).
3. Connect electrical connector to solenoid.
4. Connect the negative battery cable.
IMPORTANT:
The fuel cylinder manual valve contains an
Excess Flow Check Valve. Open the manual
valve slowly to prevent activating the Excess Flow
Check Valve.
5. Slowly open the fuel valve on tank.
6. Turn the key to the ON position and back to
the OFF position to pressurize the fuel sys-
tem. Check for leaks.
7. Check for leaks at connections by using soapy
solution or electron leak detector. If leaks are
detected, make proper repairs.
8. Start engine and ensure correct operation in
all throttle ranges.
9. Check for leaks at connections by using soapy
solution or electron leak detector. If leaks are
detected, make proper repairs.
XV. FUEL RAIL
REMOVAL PROCEDURE
1. Relieve the LPG fuel system pressure. Refer
to XVIII. LPG FUEL SYSTEM PRESSURE
RELIEF.
2. Disconnect the negative battery cable.
3. Remove the pin securing the fuel inlet hose,
then remove fitting from the fuel rail.
4. Remove Fuel Pressure Sensor electrical con-
nection.
5. Remove two bolts securing the Fuel Rail.
6. Carefully pull the rail flush along the Fuel Rail
and away from the Fuel Injectors.
7. If rail is to be replaced, remove the Fuel Pres-
sure Sensor. Refer to VII. FUEL PRESSURE
SENSOR.
INSTALLATION PROCEDURE
1. Install Fuel Pressure Sensor, if removed Refer
to VII. FUEL PRESSURE SENSOR.
2. Lubricate Fuel Injector O-rings with petroleum
jelly or Vaseline.