What happens when the injector on a diesel engine is cracked?
So when an injector becomes cracked and the fuel has leaked down in the injection system, crank times will become almost tripled in order for the fuel system to re-prime and the desired threshold reached in order to fire the engine. Determining exactly which injector is cracked can be a lengthy process.
What causes the injector to leak when the engine is shut down?
When the engine is shut down, the crack in the injector’s body will often cause fuel to drain back from the fuel lines and rails back to the tank. When the leak down occurs, the engine has to spin over for an excessive period of time in order to re-prime the injection system.
Can a clogged fuel injector be repaired quickly?
Clogged injectors can usually be repaired, if you catch the problem quickly. Sometimes a fuel injector is completely clogged, because of years of neglect or a lack of regular engine servicing. If this is the case then a refurbished replacement, may be the only option.
Can a leaking fuel injector cause hydro lock?
In some cases it can even lead to an explosion inside the engine. It has been reported that leaking fuel injectors caused hydro lock because so much fuel has accumulated on top of the piston that when the engine was turned over the engine locked because it could not compress the liquid in the cylinder.
So when an injector becomes cracked and the fuel has leaked down in the injection system, crank times will become almost tripled in order for the fuel system to re-prime and the desired threshold reached in order to fire the engine. Determining exactly which injector is cracked can be a lengthy process.
What causes a fuel injector connector to break?
A fuel injectors location on the engine exposes them to intense heat, vibration, and chemical fumes. Over time, these will cause the connectors’ nylon body to deteriorate and eventually break.
When the engine is shut down, the crack in the injector’s body will often cause fuel to drain back from the fuel lines and rails back to the tank. When the leak down occurs, the engine has to spin over for an excessive period of time in order to re-prime the injection system.
Are there any problems with the Def injector?
Double checked the DEF injector using DEF system testing in Tech Tool. Injector checks OK. No SCR codes or problems with regen. The temps are OK during a manual regen. Could find no leaks in the exhaust system. Anyone have any ideas? Thanks in advance.