Is it possible to visually inspect an injector?

 

Inspect it for what? You can remove the valve covers and inspect for oil discharge to see if the injector is firing.

 

.....right, again can i remove the injector to visually inspect its functionality.

 

Not that I'm aware of, unless you have something major wrong. The springs, poppet valve, seals are all internal. You'd be better off, in my opinion, doing the injector buzz test and cylinder contribution test to look for problems.

 

thanks Chris

 

Chris is right. You ought to first find a reason to remove and inspect it. Then, and if a fault is indicated, you can look for signs of a bad injector, Oring, or poor compression by comparing a unit from a failing hole to one from a healthy one. No faults indicated by diagnostics means I would not fool with it. The internals of the injector are best left to the folks who know what they are doing.

If you do get to looking and comparing injectors, look for things similar to spark plugs. Excessive oil or carbon build up VS other clean units. Might be an oring, or something internal. Hope this helps. Just saying so because I've done the injector R&R a few times now and there is a difference in the appearance. You would be looking for some serious fouling for a diagnosis. I mean a big difference.

 

ok, thats what i was wondering if its anything like spark plugs when you can tell when one is shot, or if damage would be only internal.thanks

 

Hey, just remember, excessive oil or buildup on one injector does not necessarily mean the unit is bad. May just be an Oring deal. That is why the truck needs buzz testing and a contribution test. Good luck.