What are the causes of car fuel pipe rupture?
2 Answers
The causes of car fuel pipe rupture may include poor quality of the fuel pipe, breakage or loosening of the nuts and other components that secure the pipe, aging or failure of the sealing material, or excessively high local oil pressure. The solution for a fuel pipe rupture caused by poor quality is to replace it with a plastic pipe of similar specifications. For a rupture caused by excessively high local oil pressure, the solution is to adjust the distribution valve to bring the local oil pressure back to the normal range. Methods for maintaining fuel pipes: When filling the fuel tank using pipes, ensure that all pipes and control components are thoroughly cleaned beforehand, and pass through a filter screen before entering the tank. The fuel level in the tank should be sufficient, maintained at the upper limit of the dipstick. After refueling, securely close the inlet and maintain a clean, ventilated, and dry working environment. Keep the exposed surfaces of control components clean to prevent contamination from airborne dust. During maintenance, ensure that disassembled pipes and control valves are cleaned properly before reassembly to prevent contaminants from mixing with the fuel. Regularly check the quality of hydraulic oil, promptly filter out impurities and metal particles, and remove air. Replace the oil when necessary, ensuring new oil meets the quality standards specified in the reference table.
I've been driving heavy trucks for long-distance hauls for over a decade and have encountered fuel hose ruptures several times. Most cases were due to severe aging and deformation of the hoses—the rubber material becomes extremely brittle after prolonged use. When temperatures rise or during mountain ascents/descents, the increased pressure can cause immediate cracking. When the high-pressure fuel pump fails, the sudden pressure surge can also easily burst the hose walls. There was also an incident where a forklift scraped against a hard corner in a warehouse, directly puncturing the hose and causing a fuel leak—the smell was extremely pungent. The consequences of ruptures are serious: at best, complete fuel loss and vehicle breakdown; at worst, fire or explosion, especially dangerous during loaded long-haul trips. Now, I inspect my fuel hoses at least twice a year and replace them immediately if I spot any cracks or hardening signs. I opt for reinforced models for better durability.
