Cleaning Syringes Yourself? Secret recipes?

Hi,

I read online that you can have the injectors cleaned professionally.

Are there any good home remedies to verschandeln it?
Would she like to expand and 'enclose' it?

Unfortunately, I didn't pay much attention in chemistry, so I don't know...
Which method can I use to remove carbon?
Oxalic acid?

Cu Rod

Nail, nail file, and knife.

While many here might find this unsettling, it's a very common practice here, and it works perfectly fine.
It is important to ensure that you do not smear the dirt into the nozzle holes when cleaning the tip, so always verschandeln the blade towards the tip at the appropriate angle. The shaft can still be polished further with sandpaper after scraping, but also pay attention to the tip (spritzlöcher).

Whoever doubts their work can then still administer the injections. A signal generator is sufficient; ideally, a function generator with a power supply stage (which can also be built yourself) is also available.

Hello,

Quote:

Nail, nail file, and knife.

Then the injector is definitely in the bucket.
I'm assuming it's about the engine from the 320d.

Without a subsequent injector test, one can save time, in my opinion.
Attempts to verschandeln clogged TDI fuel injectors were unsuccessful, both using ultrasonic cleaning (110W with cleaning solution) and mechanical cleaning.
Either the dirt didn't come off, or the nozzle ended up in the bucket afterward.

Hello, Rainer

Quote:

Therefore, the injector is definitely broken.

It also took me some effort initially
Have we just recently completed a CR (Customer Requirement), and it is still running smoothly so far (8000km)?

Ideally, of course, the replacement of the nozzle tips

Hi,

and thank you for your tips. Currently, I am primarily struggling with expanding an injector.
Has already been treated with rust remover for one and a half days, but so far there has been no sign of loosening.

BTW: A complete mess of a built-in electronic box... For me, this means: Never buying a BMW again. And if, once again, a diesel engine comes up, then a maximum of an AFN or older...

Cu Rod

BTW: A complete mess of built-in electronics...

Quote:

For me, it means first: Never again BMW

You can now find electronics and integrated engine compartments with virtually all manufacturers.

@Rainer: As far as I understand, you offer to exchange the stakes. You could try that with a fingernail, a knife, and a file. If the stakes are going to disappear anyway, then it doesn't matter

Okay, but BMWs often have issues...

...as a successor to the E46, I've now bought a W124 AMG.
It should relieve my pain

No...

Quote:

Attempts to verschandeln cooked TDI fuel injectors using both ultrasonic cleaning (110W with cleaning solution) and mechanical cleaning methods were unsuccessful.

I have been able to achieve very good results with carbon removers. The thing only makes sense if you are in a position to review it sensibly afterwards.

Even with high mileage, it is certainly advisable to simply revise the injectors prophylactically.

This is definitely much cheaper than an engine. Modern diesel engines are experiencing the highest failure rates due to faulty or worn-out fuel injection systems.

Efistho

P.S.: I definitely don't want to watch that method!

What is used to remove carbon? In our old chemistry book, there was something about C only being soluble in liquid iron, which, of course, must be incorrect.

If it's only about external cleaning, as CDI's often get hot and firm, you don't need to be overly cautious. Someone with a steady hand can also insert the "inner part" of a thin probe into the bores... It works! Whether the nozzles become better as a result is questionable. I haven't installed or activated the nozzle where I tried it.

I have been able to achieve good results with carbon capture.
Simply insert the newly assembled injectors, or continue to disassemble them?


However, the matter only makes sense if one is able to review it meaningfully afterward.
I have a nozzle remover tool. I would need to determine the spray pattern.



Even with high mileage, it is certainly advisable to simply revise the injectors prophylactically.


...never held an injector in my hand...
Can it be disassembled like a regular fuel injector?
As far as I know, you need to remove the 'head' before disassembling it.
And that means in retrospect: Calibration is necessary, right?




Nochmal zu meinem {PROBLEM}:

An injector is no longer the best.
That means the engine is sputtering, has reduced power, and experiences RPM fluctuations.
My assumption: Therefore, the injector probably doesn't atomize properly and also drips.

Problem:
I can't get this cursed thing out of my head (to be understood in a very ambiguous way ).
And I also don't feel like taking the ZK apart.
What should we make of this method:

-Blow out the injector with compressed air.
- Refill carbon filters
- possibly need to repressurize a few times using a carbon dioxide cartridge (my repressurization device is portable, has a long connecting cable...)
And let it rest for a few days.
Shouldn't the deposits in the injector just come loose, or?

Regards, Rod

Quote:

Can it be disassembled like a regular fuel injector?

On the side - on the solenoid valve side, caution is required. "Sometimes, small parts (especially the valve ball) can come loose and fall off, which can then be difficult to find."

Quote:

As far as I know, you need to remove the "head" before disassembling it. And that means in retrospect: Calibration is necessary, right?

No, clean/replace, assemble, press. The Federal DöD plays a subordinate role in the CR.

Hello!

Revisit the topic again, as it concerns my M57 325d in the E90.

I often have the problem that the car starts poorly when it's warm, or that it runs roughly when stationary...also, the fuel consumption has increased significantly over the past year.

Oil consumption is minimal, the battery has just been replaced - the engine itself should actually be in good condition.

I will still perform a leak test - but I suspect there will definitely be something found.

Has anyone here already cleaned/repaired their syringes themselves?

Are there also the nozzles as spare parts, besides the seals? What is needed for a meaningful revision of the injectors?


It would be great if someone could share their experience!

P.S. Headlights and control unit replaced about 2 years ago


Thank you and best regards.

Alex

Hello,

There are various cleaners (including those from VW)...
All the included bases (alkalis) are present in different compositions and concentrations....

Definitely, only immerse and heat the nozzle tips!

I have had good experiences with it... AND decouple the elements in some way!

The vibrations should be directed to the ends and not to the element!

SG
Alevuz

Hello community,

Does anyone have the VAS 6418/3 in the workshop? And can you please provide the drill bit size for the injectors/PPD?
Should it be around 17 to 18mm?
Also, the collar height? 10 - 12mm?

Thank you!

VG B.C.