Injector is the key component of diesel engine, and its performance directly affects the power, economy, emission and reliability of diesel engine. What are the common faults of the injector?

1. oil atomizer bad

Fault phenomenon: diesel engine power down, exhaust black smoke, the machine running sound is not normal.

Fault analysis: when the fuel injection pressure is too low, the hole wear carbon deposition, spring end wear or elastic drop, will cause the injector ahead of time, delayed closing, and the formation of spray atomization bad phenomenon.

2. needle valve stuck

Fault phenomenon: engine power down, jitter, serious and even unable to start.

Fault analysis: diesel water or acid will make the needle rust and get stuck, the needle valve sealing surface is damaged, the combustible gas in the cylinder will be the formation of carbon deposition into the mating surface of the needle by Baotou North Benz accessories injector will lose the injection effect, causing the cylinder to stop working.

3. nozzle drip

Fault phenomenon: when the diesel engine temperature is low, it is difficult to start, exhaust pipes emit white smoke, and the diesel engine temperature rises and then becomes black smoke. And the fuel consumption is high.

Fault analysis: when the fuel injector is a needle valve cone, will have a strong impact, coupled with the high pressure fuel continuously from the spray cone, will gradually wear or spots, causing the drop of oil injector.

4, too high oil return

Failure phenomenon: the injection pressure decreases, the injection time is delayed, the engine power is reduced, and even the diesel engine flameout.

Fault analysis: when the needle valve wear or needle valve and injector shell with tight enough, the quantity of oil return is significantly increased, and the valve plate when wear will lead back to the oil injector is too large, affecting Baotou north towards relaxation performance engine accessories.

Reminder: Baotou north towards any fault injector of relaxation parts should not be underestimated, because any failure could affect the engine performance.