Your a life saver dude! Thanks for sharing this. I've got an 91 609D here in LA and we just replaced the filter and are having the hardest time starting this thing.
this is exactly the video that i have been looking for. thank you so much! the other videos did not show the function of the fuel system as you have. and they did not describe the three different primer pumps. mine is black and does not seem to lock. now i know why. i hope to replace it though, with a newer one. anyway, thank you for this fantastic video. have a great day. cheers.
@@elmessaoudi1638 If you for some reason got yourself air in the hardlines between the pump and the injector you will most likely drain the battery before your engine fires up :)
Pressurize the inlet to the fuel filter with a small 12 volt diesel pump , crack all the fuel nozzle lines at one time . Restrict the return fuel line flow a little , close the nozzle lines , start engine , remove fuel restriction clamp . Remove 12 volt pump .
My primer pump isnt working i get no resistance on pump.im ordering new primer. This car has been sitting for 10 years .Drained fuel vacuum pump through line. Blew air into tank fuel came out of line at primary filter. No fuel at cracked injector.
Great vid, I just changed the plastic inline fuel filter and now it won’t start, I pumped at least 100 times every time to try and start but it wouldn’t start, I’ll try doing this tomorrow I had to cancel the mot because I couldn’t get it started
@@garyjolleys2480 do you hear a squishy kind of sound when you pump on the primer ? If so, the primer is likely leaking and not moving fuel forward as much as you like. You can replace the primer, but for the short term there is another fix. Which is to get a sealed condom, place it over the primer pump to make it air tight and Zip tie it into place.
A good thing to watch is the fuel flow in the first fuel filter, most of them are transparent, or translucent. is the air bubble in the fuel filter getting smaller when you pump with the primer ? it can take 100 pumps with the little primer to get fuel comfortably flowing around.
It is just simple standard vynil clear tubing. It was in the car temporarily as I had nothing else on hand and it had the benefit of working well for the video to show how everything worked.
@@qwertyui90qwertyui90 gotcha, and what do you recommend to loosen the hardlines with out breaking them if they're really really tight? thanks for your response
@@note_finger I would still use the 17mm. Along with a small sledge hammer to tap the end of the spanner, to give it that "shock" to loosen it up. I have a 5pound / 2kg sledge hammer with a short handle just for that type of task.
@@note_finger haha i was asked about that just a day or so ago. They are just clear tubing that i used as i had nothing else on hand at the time and since it showed the fuel flow really nicely i decided to make the video. It isn't " fuel line" it was a temporary clear tubing from a hardware store. So i do not recommend anyone use it. Any fuel additives may just eat through it half way down the highway ect: It just showed fuel flow nicely during the video :)
a few drops of diesel isn't going to hurt the engine. I cleaned up after i was done any way. It's to simulate being on the side of the road and figuring out what to do :)
@@qwertyui90qwertyui90 of course ! diesel will make your engine shining,but it's the ennemi number one of the rubber parts,especially the engine mounts! i see a lot of videos of young mercedes lovers doing differentiel oil change or valve adjustment or master cylinder without making attention to the debries! it's realy harmful and it's necessary to hold the red flag from time to time! Be sure of my respect and ...i'm not angry lol! i'm so happy to find good videos on w123 .i have a 300 td 1982!
Your a life saver dude! Thanks for sharing this. I've got an 91 609D here in LA and we just replaced the filter and are having the hardest time starting this thing.
Exellent video, very well executed and easy to follow.
Thank you very much Sir.
So clear and easy to understand. Great job mister
Thank you :)
this is exactly the video that i have been looking for. thank you so much! the other videos did not show the function of the fuel system as you have. and they did not describe the three different primer pumps. mine is black and does not seem to lock. now i know why. i hope to replace it though, with a newer one. anyway, thank you for this fantastic video. have a great day. cheers.
:) thank you. Glad i could help
It's much easier to bleed the system by undoing the nut on top of the fuel filter there is no need to crack open any injectors and there is no mess.
yes y're right!
@@elmessaoudi1638 If you for some reason got yourself air in the hardlines between the pump and the injector you will most likely drain the battery before your engine fires up :)
This is very helpful! thank you!
Good job! Loved the video. Subscribed.
Great job mister 💪 please show us how to rebuild a engin om617
and thank you so much
You're a best 💓
Excellent tutorial, thanks
Thank you :) I hope it was helpful.
Feel free to check out my other videos :)
Nice work - educative session! Thanks - keep going!
Next big video will be taking the engine out, putting it on an engine stand and then changing the connecting rod bearings
@@qwertyui90qwertyui90 How about swapping the engine - would be nice to have a V8 there.... Or Volvo's 5-cylinder.
@@arivaisanen4561 No, not touching volvo haha.
and nah, this engine is good :) and no drama with trying to fit a different one in.
You nailed it thank bro...
GREAT video Thanks
No worries, :) Glad you enjoyed it :)
What if you still have air trapped in the system after bleeding it thrice or more times?
nicely done.
Thank you
Pressurize the inlet to the fuel filter with a small 12 volt diesel pump , crack all the fuel nozzle lines at one time . Restrict the return fuel line flow a little , close the nozzle lines , start engine , remove fuel restriction clamp . Remove 12 volt pump .
Can you help me adjust the point of the injection pump and the crankshaft? I'm from brazil. I live in Bahia.
Very nice.. Thank you..
Thank you
You're welcome
Thanks so much I thought I was going to need to call a tow truck
Happy to help :)
Glad you got going again.
My primer pump isnt working i get no resistance on pump.im ordering new primer. This car has been sitting for 10 years .Drained fuel vacuum pump through line. Blew air into tank fuel came out of line at primary filter. No fuel at cracked injector.
Great vid, I just changed the plastic inline fuel filter and now it won’t start, I pumped at least 100 times every time to try and start but it wouldn’t start, I’ll try doing this tomorrow I had to cancel the mot because I couldn’t get it started
1986 307d motorhome
@@garyjolleys2480 do you hear a squishy kind of sound when you pump on the primer ?
If so, the primer is likely leaking and not moving fuel forward as much as you like.
You can replace the primer, but for the short term there is another fix.
Which is to get a sealed condom, place it over the primer pump to make it air tight and Zip tie it into place.
@@garyjolleys2480 The primer fix is in car trek video here. about 2/3 of the way through.
ruclips.net/video/M1SpwlsaiwM/видео.html&ab_channel=Tavarish
Go fore replement the cobberseals on the injektors , and the nocksound been away
My primer is not building any pressure. Just pumps obviously not priming. Any other method?
A good thing to watch is the fuel flow in the first fuel filter, most of them are transparent, or translucent.
is the air bubble in the fuel filter getting smaller when you pump with the primer ?
it can take 100 pumps with the little primer to get fuel comfortably flowing around.
my 1958 mercedes wont start keeps turning and turning any suggestions.
What engine ?
What kind of clear fuel line is this?
Simple PVC clear line from the hardware store. I used it for demonstration purposes. :)
Great video, I heard these w123 Mercedes benz diesels can run on bio-diesel... Have you tried using bio-diesel?
Yes, it works wonderfully well.
Not recommended new fuel caused my engine to knock
Can i ask what transparent tube is that?
It is just simple standard vynil clear tubing. It was in the car temporarily as I had nothing else on hand and it had the benefit of working well for the video to show how everything worked.
Long term that would be dangerous. Great for demonstrating process though and great video .
are those 17mm wrenches or 19?
edit: what are the sizes of the hoses that are used for the pre-fuel filter
17mm for loosening the hardlines.
the pre filter is 8mm if i remember correctly.
@@qwertyui90qwertyui90 gotcha, and what do you recommend to loosen the hardlines with out breaking them if they're really really tight? thanks for your response
@@note_finger I would still use the 17mm. Along with a small sledge hammer to tap the end of the spanner, to give it that "shock" to loosen it up. I have a 5pound / 2kg sledge hammer with a short handle just for that type of task.
@@qwertyui90qwertyui90 gotcha, and where did you aquire those clear fuel lines? they look soo cool
@@note_finger haha i was asked about that just a day or so ago.
They are just clear tubing that i used as i had nothing else on hand at the time and since it showed the fuel flow really nicely i decided to make the video.
It isn't " fuel line" it was a temporary clear tubing from a hardware store. So i do not recommend anyone use it. Any fuel additives may just eat through it half way down the highway ect:
It just showed fuel flow nicely during the video :)
I need new injectors
put a couple of towels man!
you make me angry!
a few drops of diesel isn't going to hurt the engine. I cleaned up after i was done any way.
It's to simulate being on the side of the road and figuring out what to do :)
@@qwertyui90qwertyui90
of course ! diesel will make your engine shining,but it's the ennemi number one of the rubber parts,especially the engine mounts!
i see a lot of videos of young mercedes lovers doing differentiel oil change or valve adjustment or master cylinder without making attention to the debries!
it's realy harmful and it's necessary to hold the red flag from time to time!
Be sure of my respect and ...i'm not angry lol!
i'm so happy to find good videos on w123 .i have a 300 td 1982!