J 43178 Fuel Line Disconnect Tool

Important: Before servicing fuel system connections, relieve the fuel system pressure. Refer to Fuel Pressure Relief .

1. Grasp both sides of the fitting. Twist the female connector 1/4 turn in each direction in order to loosen any dirt within the fitting.




Caution: Wear safety glasses when using compressed air, as flying dirt particles may cause eye injury.

2. Blow any dirt out of the fitting using compressed air.



3. Insert the J 43178 tool into the female connector. Push the tool inward in order to release the locking tabs.



4. Pull the connection apart.

Notice: If necessary, remove rust or burrs from the fuel pipes with an emery cloth. Use a radial motion with the fuel pipe end in order to prevent damage to the O-ring sealing surface. Use a clean shop towel in order to wipe off the male tube ends. Inspect all the connections for dirt and burrs. Clean or replace the components and assemblies as required.

5. Using a clean shop towel, wipe off the male pipe end.
6. Inspect both ends of the fitting for dirt and for burrs. Clean or replace the components if necessary.

Caution: In order to reduce the risk of fire and personal injury, before connecting fuel pipe fittings, always apply a few drops of clean engine oil to the male pipe ends.

This will ensure proper reconnection and prevent a possible fuel leak.
During normal operation, the O-rings located in the female connector will swell and may prevent proper reconnection if not lubricated.
1. Apply a few drops of clean engine oil onto the male pipe end.



2. Push both sides of the fitting together in order to cause the retaining tabs to snap into place.



3. After installation, pull both sides of the fitting to make sure the connection is secure.