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Where to find diesel injection pipe ?
Topic Started: Tue Jun 15, 2010 10:10 pm (2,723 Views)
willvv
Newbie
[ * ]
Hi,

I have a 1984 190D, and one of the pipes that takes the diesel from the pump to the injectors broke just above the fitting.
I've been trying to find one of those pipes using google, but all I can find are rubber-like hoses, not the all-metal pipes that my car has.

Here's a sample of what I have found so far:
http://www.redlinemotive.com/replacement/mercedesbenz/fuelhose.asp

I'm guessing these lines have to be all-metal pipes, because of the pressure they have to support, and because the diesel might damage them, but I'm not sure.

Does any of you have an idea of where to buy these pipes? or what is the exact name of the part I'm looking for (I tried fuel pipe, fuel hose, diesel hose, diesel pipe, but I cannot find anything so far).

Thanks a lot for your help.
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tombance
Part of things
[ *  * ]
One of mine broke on my car (that was a along drive home with an empty coke bottle slowly filling up...). I ended up getting a second hand one from a car being broken on ebay. I think I paid about £5 plus postage for it.

I actually have one for the number 4 cylinder (rearmost one on a 2 litre, 4th one back on a 2.5 litre). If you cover postage you can have that for free.
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kentronix
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I'm only really here for the Kitchens

Sounds like you mean the injector lines, I would imagine you can get them from mercedes. Each one will probably have a part number although you may find they come straight and you have to bend them to shape, not sure on that. And you are correct they will need to be metal.
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Rich27
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Admin

Nice one Tom

Always try the dealership.
Honestly you may be pleasently surprised.
I had to get the clear plastic fuel pipes and the banjo fittings not long after Xmas and they wernt that much.

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willvv
Newbie
[ * ]
Thanks to all for your replies.

I actually was able to find a guy who had a couple of these pipes :)

@tombance, that's exactly what I had to do, put a bottle under the hood to collect the diesel from that injector. You say that you have one for the cylinder 4, do you mean that they aren't interchangeable? I thought the position didn't make any difference. Thanks for the offer, but I was able to find them here, and I think sending that to Costa Rica would be a bit expensive and would take a long time.

@kentronix "Injection lines", that's the name I was looking for, but it still doesn't yield many significant results on eBay, or any parts dealer. :(

@Rich27 Yep, I always check with the dealership, but they are ~$80 each ... and I'm not going to pay that much for something that simple.

Also, a friend of mine who is a mechanic and had a 190 told me that the lines for old Land Rover's fit just fine, so, next time I'll try to find one of those (Old Land Rover's are more common than 190's).

Thanks a lot for your help guys.



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kentronix
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I'm only really here for the Kitchens

I think they are different lengths so you need to get one made up to the correct length. If you know a garage that can bend and flare pipes they could probably make them up quite cheaply.
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tombance
Part of things
[ *  * ]
They are all different lengths and have different bends. The mercedes ones have individual part numbers and come pre bent.

Glad that you managed to find one locally. Yeah I had to drive 60o0 miles home on 4 out of 5 cylinders (seriously down on power and very rough idle) with a stop every 45 miles to pour the collected fuel back into my tank.

Sadly I rolled the car (a 250D) in february :(. Onto a 190E 1.8 now though!
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willvv
Newbie
[ * ]
Hi again,

I know they are different lengths, but does it matter?

As you might guess, I don't know anything about mechanics, but to me, the length and shape of the lines doesn't seem very relevant, because as I see those lines, they'll be filled with diesel and the pump will send just enough diesel each time to make the engine work.

Could somebody explain me what am I missing here?

Thanks a lot for your help guys.

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Johnboy Mac
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More than part of things
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Just bought a fuel injection line for a petrol model, cheap from the main dealers. I'd expect the diesel line to be of similar cost. Aslo you want to make sure the line is sitting correctly. Try M-B.
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kentronix
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I'm only really here for the Kitchens

The line is held in place by some clips (which are a bit of a weak point as they age). As long as the line fits at each end and is held securely then I guess the length doesnt matter.
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Richy190E
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bubble bubble
[ *  *  *  *  *  * ]
Cylinder 1 A6010703733 - £33.63
Cylinder 2 A6010703833 - £33.63
Cylinder 3 A6010703933 - £33.63
Cylinder 4 A6010704033 -£33.63

Please confirm these are correct for your engine before ordering.
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tombance
Part of things
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I think I read somewhere that the length was important, something to do with timing because the diesel will compress a little when injected, so will take longer to reach the injector on a longer pipe. I'm not sure if that is all BS or not, but there must be a reason all of the pipes are routed in such a wierd way!
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Fred Esq
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Newbie
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All the pipes are the same length but with different bends in to make up for this. clever!

I had to replace mine, bought from main dealers, £38 inc VAT, took 5 minutes to replace. for one pipe
don't bother getting one made up as it prolly won't be the same length, go to dealers and replace it yourself ;)
Edited by Fred Esq, Fri Jun 18, 2010 9:28 am.
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Richy190E
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bubble bubble
[ *  *  *  *  *  * ]
Once bled the pipe length isnt relevent, diesel isnt compressable. Pressure is created by the resistance to flow, this is dictated by the crack pressure of the injector. The ends I think are welded/brazed/soldered on and machined ends so making one would be difficult.
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tombance
Part of things
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So you reckon the only reason they're all the same length is so that if you run out of fuel all they Cylinders will start firing at the same time?
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Richy190E
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bubble bubble
[ *  *  *  *  *  * ]
They may be routed that way because the pump pressurises 1-2-3-4 but the firing order isnt that configuration, also for packaging so they take up minimal room. Who knows.
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kentronix
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I'm only really here for the Kitchens

are they all the same length ?
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willvv
Newbie
[ * ]
Hi,

I'm still trying to find these, I asked on a site called PeachParts and they are $50 each, I think I'll go with those if I don't find them somewhere else.

I have a quick question though, I found the lines for a 240D, do you know if there's a difference among those? because if they have the same fitting, I think I could get those instead.


Here's the link of the item on eBay: http://is.gd/dpwdA


I'd really appreciate if one of you gives me a light here.

Thanks

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kentronix
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I'm only really here for the Kitchens

I dont know much about the 240d but I suspect they will not be the same. The 190's 2.0d and 2.5d are pretty similar (2.5 has one extra cylinder). The 300d 3.0 is similar again, but with another cylinder.


The 240d is quite different I think, not based on the same layout as far as I know. I am not 100% sure on this but its my understanding that the 240d is a totally different engine type.
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RichardCC
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Part of things
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Maybe I'm being blind, but have I missed which injector line is wanted? 'cos I have at least one, maybe two somewhere in the garage

Richard
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kentronix
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I'm only really here for the Kitchens

The metal high pressure lines between the IP and the injectors.
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RichardCC
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Part of things
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Thanks but I actually meant to say which cylinder :rolleyes: sorry :crying:
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