Should I clean them up before I put them back in ? If so what should I use ?TIA

 

I guess I don't know what you're refering to when you say pintle. I would keep the injectors themselves as clean and oiled as possible. If you're refering to the hold downs then yes clean them. Other than that I'm lost

 

Do they have carbon on them? One thing I have read is to stick a vacume pump on the end where the pintle is and draw vacume on the injector to see if it will hold vacume. From what I have read they should and if they do not then they could be bad.

 

The Pintle is the nozzle needle at the end of the injector.

 

I guess pintle equals plunger? that is the piston that injects the fuel through the nozzle? Other than that there really isn't a nozzle needle to speak of in this injector, at least not like the old bosch mechanial injectors used in tractors.

 

The 6.0 bible has the breakdown on the injector.Pintle would be the same as nozzle in my minds eye.I was wondering if it is a normal procedure to clean the carbon off the tip before I put them back in. Judging from this post they are going straight in.

 

Well brickie as long as you know that they are seating ok and no leaks then go for it. That is why I suggested the vacume test so you could check for a leaking injector before you put them in.

 

Just wipe them off with carb cleaner on a rag, never use a wire brush! The pintle is actually the needle inside the nozzle that regulates and controls fuel flow.

 

Thanks Josh.