Catera V6-3.0L VIN R (1997)
Right Front Frame Rail
Nylon Fuel Lines
Caution: In order to Reduce the Risk of Fire and Personal Injury observe the following items:
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Replace all nylon fuel pipes that are nicked, scratched or damaged during installation, Do Not attempt to repair the sections of the
nylon fuel pipes.
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Do Not hammer directly on the fuel harness body clips when installing new fuel pipes. Damage to the nylon pipes may result in a fuel
leak.
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Always cover nylon vapor pipes with a wet towel before using a torch near them. Also, never expose the vehicle to temperatures
higher than 115°C (239°F) for more than one hour, or more than 90°C (194°F) for any extended period.
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Apply a few drops of clean engine oil to the male pipe ends before connecting fuel pipe fittings. 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.)
The nylon fuel lines are designed to perform the same function as the steel or rubber fuel lines. The nylon lines are constructed to withstand the
maximum fuel system pressure, exposure to any fuel additives, and changes in temperature.
The fuel feed, the return, the vacuum and the EVAP lines are assembled as a harness. The retaining clips hold the lines together and provide a means for
attaching the lines to the vehicle. The sections of the lines that are exposed to any chafing, high temperature or vibration are protected with a heat
resistant rubber hose and/or a co-extruded conduit.
The nylon fuel lines are somewhat flexible and can be formed around gradual turns under the vehicle. However, if the nylon lines are forced into sharp
bends, nylon lines will kink and restrict the fuel flow. Also, once the fuel lines are exposed to fuel, the fuel lines may become stiffer and more likely to
kink if bent too far. Take special care when working on a vehicle with any nylon fuel lines.