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Check and replacement of fuel lines and compression fittings
| 1. Before servicing the fuel lines or compression fittings to relieve pressure in the supply system (see. Section Dropping the pressure in the supply).
2. Lines of a fuel path between the power supply system laid tank and engine compartment. Steel tubes and flexible fuel hoses are attached to the bottom of the vehicle by means of screw clamps and fasteners. Each time the vehicle is raised above the ground with any purpose (for example, for inspection or parts replacement exhaust systems), try to take the opportunity to check the condition of the fuel lines and compression fittings. Carefully inspect all hoses and tubes of a fuel path for cracks, twists, deformations and other mechanical damage.
3. At revealing of signs of internal cross-contamination or violation of the relevant section of the fuel path necessary to remove and blow compressed air. It is mandatory to check the condition of the strainer and pump fuel standpipe (see. Section Check and replacement of the gauge of fuel consumption). |
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Steel Pipes Use as replaceable sections only high-strength steel tube production proven manufacturers.
Remember that copper and aluminum tubes are not able to withstand arising during operation of the vehicle vibration loads.
Do not forget that fuel lines on the models equipped with the injection system must withstand high internal pressure.
Often in firm shops of automobile accessories can be purchased equipped with threaded nipple attachments section metal tubes. When loosening and tightening the compression fittings use two wrenches to avoid twisting the mating connector. It is mandatory to check the condition for sealing compression fittings O-rings. Worn or mechanically damaged rings at once replace. Try to use as replaceable components only firm details.
Flexible hoses  | When replacing the fuel hoses use only the firm components calculated on high internal pressure. |
Flexible oil hoses must be routed no closer than 10 cm from the components of the exhaust gases and not closer than 25 cm from the catalytic converter. Make sure the fuel lines are not in contact with body parts and suspension components. The minimum allowable size of the gap is 6.3 mm. REPLACEMENT | 1. The damaged sections of fuel lines (tubes and hoses) should be removed and replaced with new, corporate production.
2. Relieve the pressure in the supply system (see. Section Dropping the pressure in the supply).
3. Release to be dismantled section of the fuel path from intermediate clamps securing it to the bottom of the car.
4. With the appropriate configuration, release the clamp (s) and disconnect hose (s) from the metal line (s). If necessary, rotate to release the hose on the union to facilitate its disconnection.
5. Install in the reverse order. |
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