Very useful information for re-working injectors.

Nice video. I am planing to check the seals on my -71 350SL.

Great video always great to see it done

Great video! I’m going through the same process on my 73 450SL. I have a pretty big leak from either the fuel rod or injector (still need to investigate) but this helps me understand how it all needs to be removed.

@cjoakman7715

4 ай бұрын

Did you get it all done? I'm just starting the same process on my 75' 450sl. Any tips or suggestions would be much appreciated...lol.

Hi, thank you for that video. I’m looking into difficulty cold starting. It helps to just turn the keys twice or three times before cranking, to make the fuel pump work. Does that mean my fuel pump is bad? Or could my injectors be leaking ? Or should I look into the cold start valve

@classiced1416

9 ай бұрын

It could be all of those things! But possibly not leaking injectors, because unless they are very bad there wouldn’t be enough time to lose the pressure after the pump has come on. Leaking injectors sometimes result in too much fuel in the cylinders, but your symptoms suggest it’s not enough fuel / or fuel pressure. Suggest trying to check the system pressure while running. If it’s normal that might point to cold start valve rather than fuel pump. Another culprit may be the fuel pressure regulator. Funnily enough I have a hard cold start on the Range Rover at the moment and am going through a similar process!

@Altanox

9 ай бұрын

Thank you for your wisdom! How would one débutant check the system pressure while running? Thank you!

@classiced1416

9 ай бұрын

@@Altanox do you have D Jet or K Jet injection system? For D Jet I did a video on fuel pressure test.

Amazing video. Can any of you help answer a question - I just acquired a 1972 350SL (450SL). I need new injectors. This video shows Yellow, my engine has Green\Blue ish. What is the difference. I think mine are FJ119. There is so much good info online but also a lot of terrible info..... any live knowledge and experience would be great.

@classiced1416

6 ай бұрын

Glad that you liked the video! I found this series of articles very useful for D Jet generally, mentions different colours - jetronic.org/en/d-jetronic/injector I think Mercedes should be able to confirm OEM part numbers for car.

@peteralexander1155

4 ай бұрын

@@classiced1416 Thank you for the link. Plenty of useful info there.

Thanks for the video. Out of interest why did you not also replace the pipe between the injector and the fuel rail? I am about to do mine as they are very hard and brittle and look viuilnerable but it doesn’t look as easy to do those pieces?

@classiced1416

Жыл бұрын

I could have changed the pipes, maybe I should have. But they actually seemed in good condition, all clamps good and no perishing on the rubber. It shouldn’t be difficult to do, just use the correct clamps and quality rubber.

@jonnybigpotato4263

Жыл бұрын

Sorry another question. Did those seals go straight into the metal manifold, or was there a plastic liner in the manifold that they went into?

@classiced1416

Жыл бұрын

@@jonnybigpotato4263 what I refer in the video to the ‘lower seals’, ie those that go around the injectors themselves just go straight into the hole. No additional plastic other than the pintle cap on the end of the injectors themselves.

Hi I did all of this that you just demonstrated But car won’t start it starts but turn off after a couple seconds do you have any idea why ? I would appreciate your help

@classiced1416

8 ай бұрын

Are you sure you reinstalled the fuel lines and all wiring correctly? It sounds like maybe the injectors are not firing / fuel pressure not sufficient.

MB really use worm gear clamps on the fuel lines

@classiced1416

Жыл бұрын

I don’t think so, I changed a lot of worm gear clamps out for the more original style shortly after this video.

hello I have a small question please, I have a 1973 slc 350 v8, I changed the filters, oil changes, spark plugs, injectors, then when I start it does not idle and it farts at the throttle in your opinion you do you have any idea what the problem is? THANKS

@classiced1416

Жыл бұрын

Did this start after changing the plugs and injectors or was like that before?

@lotfielomrani3359

Жыл бұрын

@@classiced1416 yes he start after changing the injectors and glowplug, he start one time after this noting the car not start after

@classiced1416

Жыл бұрын

@@lotfielomrani3359 that’s weird, there are quite a few things that could be the problem, but for example are the injectors correct, has maybe some wiring been disturbed during the work?

If you value your eyes wear safety glasses... gas in the eyes definitely not comfortable