My 300tdt is bleedin g fuel out of one of the injectors,not the nozzle,at the rim where the thread is,a lot of fuel is spilling out,a friend told me theres a chamber or pre-chamber inside that needs to be changed,does anyone know what tools are required or maybe have a tutorial? i only have 219k miles and my body is rust free and straight so i dont want to damage my wagon.
Please help.

leaking diesel isn't going to turn a "straight, rust-free wagon" into a bent, rusty wagon

No big deal, first order of business is to replace the braided return fuel lines since it's probably leaking from there. Then clean up all the fuel around your injectors with tissue and some type of compressed air (like the air in a can for keyboards). Then drive for a week or so and check it. If you still see fuel, then and only then will you need to pull your injectors.

Since you said it's leaking at the threads, loosen the injector line a wee bit and then snug it up again. Not too tight though.

__________________
-justin

1987 300TD, 1987 300TD
2008 R32, 2000 Passat Wagon

If it's leaking, you should be able to see signs of it's source after a short while. Clean everything spotless and let it idle for 30minutes, the leak will probably show it's ugly head pretty quickly.

Ok i get you guys message,clean and see,i see its a huge leak,coming from the thread not the injector itself,its whats inside the thread,i need some more specific help.

It's very rare for it to come back out of there unless you have alot of fuel not being burned. 99.9% of the time it's the cloth return lines leaking down onto it.

Nope its from the chamber,ive been looking at it for quite some time,whats in there? is that an actual part i can change? know which tools ill need etc??

when it leaks from the line, it pools up around the base of the injector and makes you think it's the injector. I already gave you two very good suggestions, go do them and report back so we can help you more if you still need the help.

__________________
-justin

1987 300TD, 1987 300TD
2008 R32, 2000 Passat Wagon

ok will do sir.