Century L4-2.2L VIN 4 (1994)
Fuel Vapor Pipes
NYLON FUEL AND VAPOR PIPES
Nylon fuel pipes are designed to perform the same job as the steel or flexible fuel lines they replace. Nylon pipes are constructed to withstand
maximum fuel system pressure, exposure to fuel additives, and changes in temperature. There are two sizes used, 3/8" ID for the fuel feed, and
5/16" ID for the fuel return.
The fuel feed and return pips are assembled as a harness. Retaining clips hold the pipes together and provide a means for attaching the pipes to the
vehicle. Sections of the pipes that are exposed to chafing, high temperature or vibration are protected with heat resistant rubber hose and/or
corrugated plastic conduit.
Nylon fuel pipes are somewhat flexible and can be formed around gradual turns under the vehicle. However, if forced into sharp bends, nylon
pipes will kink and restrict fuel flow. Also, once exposed to fuel, nylon pipes may become stiffer and more likely to kink if bent too far. Special
care should be taken when working on a vehicle with nylon fuel pipes.
