Fuel System Manual Control Valve (CNG): Service and Repair

REMOVAL
1. Perform Pre-Service procedures. Service and Repair
2. Remove three retaining bolts and remove fuel pressure regulator shield.
3. Slowly loosen the fuel line tube nuts and allow residual pressure to vent.
4. Remove fuel lines.
5. Remove retaining clip and quarter turn ball valve.

INSTALLATION
1. Follow removal procedure in reverse order.

CAUTION: Replace O-ring seal in the fittings. Lubricate O-ring seals with clean engine oil meeting Ford specification WSS-M2C153-F.

NOTE: Make sure all O-ring sealing surfaces are clean.

NOTE: Natural gas O-rings are identified with a yellow stripe. Do not use unapproved O-rings.

2. Tighten fuel line tube nuts to 34-39 Nm (25-28 lb ft).
3. Tighten jacking shield bolts to 8-10 Nm (71-88 lb in).
4. Perform Post-Service procedures. Service and Repair
5. Test system for leaks.