F 250 2WD Pickup V8-351 5.8L VIN H 4-bbl HP (1985)
Fuel Supply Line: Technical Service Bulletins
Fuel System - Connector Service Procedure
Article No. 85-19-20
FUEL SYSTEM SERVICE PROCEDURE FOR NYLON FUEL TUBES AND PUSH CONNECT FITTINGS
LIGHT TRUCK 1985 RANGER, BRONCO II, E & F SERIES WITH EFI ENGINES
If services are required on vehicles equipped with nylon fuel tubes and EFI fuel systems, service parts and service procedures are being released. The
following procedure clarifies Shop Manual Section 24-50 of the 1985 Truck Shop Manual, Engine - Volume B, and must be adhered to:
MAJOR SERVICE OPERATIONS
Fuel Lines
Vehicles equipped with nylon fuel tubes and push connect fittings have three types of service that can be performed to the fuel lines; replacing nylon
tubing (splicing nylon to nylon), replacing push connector and replacing damaged push connect tube end. These three methods follow:
Splicing Nylon to Nylon
1.
Relieve fuel system pressure as outlined in the 1985 Car/Truck Shop Manual - Powertrain Section 24-50. Read cautionary note prior to relieving
pressurized fuel system.
2.
Cut out damaged section of tubing and retain as a guide.
3.
Cut a section of nylon service tubing (type 11 or 12 available in 5/16 and 3/8 inch sizes) to the same length as the damaged section of tubing.
Figure 23 - Tubing Splice
4.
Select the proper (5/16 and 3/8 inch) barbed connectors for completing the splice. Two connectors are required for each splice (Figure 23).
NOTE:
To make hand insertion of the barbed connectors into the nylon easier, the tube end must be soaked in a cup of boiling water for one minute
immediately before pushing the barbs into the nylon. Refer to Figure 23 for all splicing service combinations.
5.
Install the barbed connectors into each end of the replacement tubing using boiling water as outlined.
6.
Install clips onto any tubes which might be difficult to access once the final splices are completed.
a.
Install four (4) Keystone clamps (part number 377931) onto the original nylon tubing (loosely) before beginning Step 7.
7.
Complete the splice of the replacement nylon to the original nylon tubing at both ends. (Use the boiling water method mentioned previously, to get
the required number of barbs engaged, as shown in Figure 23).
