Push connect fittings utilize two different retaining clips. The fittings used with 5 / 16 in. (8mm) diameter tubing use a "hairpin clip". The fittings used with 1 / 4 in. (6mm) and 1 / 2 in. (12.7mm) diameter tubing use a "duck bill'' clip. Each type of fitting requires a different procedure for removal.
Push connect fitting disassembly must be accomplished prior to fuel component removal (filter, pump, etc.) except for the fuel tank where removal is necessary for access to the push connects.
REMOVAL & INSTALLATION
5 / 16 in. Fittings (Hairpin Clip)
See Figure 1
- Inspect the internal portion of the fitting for dirt accumulation. If more than a light coating is present, clean the fitting before disassemble.
- Using your hands, slowly pry the two clip legs apart about 1 / 8 in. (3mm) and push entire clip toward the center of the tube. Complete removal is accomplished by lightly pulling from the triangular end of the clip and working it clear of the tube and fitting.
Do not use any tools.
- Grasp the fitting and hose assembly and pull in an outward direction to separate the fitting from the steel tube. For particularly difficult connections, a slight twist of the fitting may be required to break any adhesion and permit effortless removal.
- Examine fittings and tube for dust or dirt. Clean all ends with a cloth before reconnecting.
- Inspect clips for damage or wear, and replace any clips which are not perfect. If undamaged, reinstall clip by inserting into two adjacent openings with the triangular portion pointing away from the fitting opening. To fully engage the body of the clip, the legs should be locked on the outside of the tube. Piloting with an index finger may be necessary.
- To reinstall the fitting onto the tube, align both ends up and push the fitting onto the tube end. When the fitting is engaged, a definite click will be heard. Pull on fitting to ensure a proper engagement.
See Figures 1 and 2
These fittings consist of a body, spacers, O-rings and a duck bill retaining clip. The clip maintains the fitting juncture. When disassembly is required, one of the two following methods should be followed:
1 / 4 IN. FITTINGS
Using disassembly tool T82L 9500 or equivalent, to separate the tube from the fitting, align the slot on the tool with either tab on the clip and insert the tool. This disengages the duck bill from the tube. Holding the tool and the tube with one hand, slowly pull the fitting away from the tube. Inspect and clean both tube and fitting. Also inspect internal retaining clip, and replace if necessary.
Only moderate effort is required if the tube has been properly disengaged. Use hands only. Some fuel tubes have a secondary bead which aligns with the outer surface of the clip. These beads can make tool insertion difficult. If there is extreme difficulty, use the disassembly method which follows.
1 / 2 IN. FITTING AND ALTERNATE METHOD FOR 1 / 4 IN. FITTING
This method of removal disengages the retaining clip from the fitting body. Use a pair of narrow pliers with a jaw width of 0.2 in. (5mm) or less, 6 in. (153mm), locking pliers are ideal.
Align the jaws of the pliers with the openings in the side of the fitting case, and slowly compress the portion of the retaining clip that engages into the fitting case. This disengages the retaining clip from the case. Make sure that both sides of the clip have been disengaged. If so, pull the fitting off the tube.
Only moderate effort is required if the retaining clip has been properly disengaged. Use hands only.
The retaining clip will remain on the tube. Disengage the clip from the tube bead and remove. Replace the retaining clip if it appears to be damaged or worn.
Slight ovaling of the ring of the clip will usually occur. If there are no visible cracks and the ring will pinch back to its circular configuration, it is not damaged. If there is any doubt, replace the clip.
Install the clip into the body by inserting one of the retaining clip's serrated edges into one of the window openings. Push on the other side until the clip snaps into place. Slide the remaining end of the line back into the clip.
See Figure 3
To disassemble this type of coupler, coupler tool D87L-9280-A for3/8in. diameter line, or D87L-9280-B for1/2in. diameter line is needed. Equivalent type respective tools are available.
The spring lock coupling is a line coupling held together by a garter spring inside a circular cage. When the coupling is connected together, the flared end of the female fitting slips behind the garter spring inside the cage of the male fitting. The garter spring and cage then prevent the flared end of the female fitting from pulling out of the cage. This coupling system is used for fuel, A/C and power steering lines.
Two O-rings are used to seal between the 2 halves of the coupling. These O-rings are made of special material and must be replaced with an O-ring made of the same material. To disconnect the coupling do the following:
- Discharge any pressure or fluid from the line. If present, pry up on safety clip with a small screwdriver.
- Then fit Coupling Tool ( 3 / 8 in. or 1 / 2 in.) or equivalent to the coupling.
- Fit the tool to the coupling so that the tool can enter the cage opening to release the garter spring.
- Push the tool toward the garter spring to release the female fitting from the coupling.
- Slowly, pull the male and female fittings apart. Remove the tool from the disconnected spring lock coupling. Inspect the condition of the O-rings, and replace if needed.
- Be sure to check for a missing or damaged garter spring. If damaged, remove the spring with a small hooked wire and install a new spring.
- If replacing any O-rings,lubricate the O-rings with clean engine oil. Slide new O-rings on fitting with a twisting motion.
- Carefully push both ends of line together until tight.
- To ensure coupling engagement, pull on the fitting and visually check to be sure the garter spring is over the flared end of the female fitting.
- Reinstall safety clip if present. Start car and check for leaks.