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What causes a brake line to burst?

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What causes a brake line to burst?

What causes a brake line to burst?

2026-1-1 Comments
There are several possible reasons why brake lines may burst:

1. Stuck injectors: If the injectors are stuck in the closed position while the plunger continues to spray fuel during engine operation, the high-pressure brake line may rupture due to the prolonged pressure.

2. Poor delivery valve unloading: A faulty delivery valve seal or poor unloading can lead to excessive residual pressure or cavitation in the high-pressure brake line, causing fatigue damage or cracks. With prolonged engine operation, this can exceed the fatigue strength of the brake line material, resulting in breakage.

3. High-pressure brake line quality and assembly methods: Quality issues with the high-pressure brake line and improper assembly methods can also cause breakage. Especially during assembly, stress concentration at the connection thread can easily lead to breakage at the flared end.

To address these issues, we can take appropriate measures to prevent and resolve brake line bursts, ensuring safe driving.
    

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