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  #1  
Old 03-22-2007, 08:29 PM
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1990 560sel clogged fuel distributor

i have read on other post that the screens get clogged, where are these screens located. what are they made of steel, alum? and of course how do you get them out?

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  #2  
Old 03-22-2007, 08:31 PM
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Gen II (ie, 560's, 420's) don't have screens. Only gen I (non CIS E) cars have screens.

I would seriously consider a re-manufactured FD..

Jonathan
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  #3  
Old 03-22-2007, 08:34 PM
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so what gets clogged then? i have a friend suggested using some form of acid to break ther rust out, good idea or crazy idea?
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  #4  
Old 03-22-2007, 08:50 PM
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No!@ I would not use acid..you have rubber baffles/seals in there and there is no telling what the acid will do. If your baffle is torn the FD won't work right, if seals are blown out it won't work right.. there are VERY fine orifices in the FD (did you have a look @ the pics on my page) so they may be clogged &/or corroded.

If any DIY'er has had luck reviving their FD on their own I would love to hear it.

Jonathan
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Jonathan Hodgman
http://www.blueridgemb.com/
Enthusiast Service, Restoration & Tuning.
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Specializing in all pre and post merger AMG's including Hammers and DOHC M117 engines.
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  #5  
Old 03-23-2007, 05:25 AM
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Quote:
Originally Posted by jhodg5ck View Post
No!@ : there are VERY fine orifices in the FD (did you have a look @ the pics on my page) so they may be clogged &/or corroded.

If any DIY'er has had luck reviving their FD on their own I would love to hear it.

Jonathan
Hi jhodg5ck, how is it possible to access your page I would like to see the pictures

Thanks
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Keep us posted especially if your problem is solved
Present cars:
My car: E-class 420CDI, 2008, W211, V8, 180 000km

Wife's one: C-class 220CDI Sport Coupé, Euro, 2002, W203. 345 000km

Son's one: GLK class 220CDI, 2009, W204

Sold E class 260E, W124, 1988 beloved car sold after 489 000 kilometres of reliable services (engine M103, clutch and 5 speed manual gear box all original).

E-class, W210 320CDI, 2000[/B], 225 000km, Sold
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  #6  
Old 03-23-2007, 08:49 AM
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Click the link in my Sig or go to blueridgemb.com or AMGEast.com

For the moment they take you to the same place, but AMGEast will be changing over the next few weeks should things go well.

Jonathan
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Jonathan Hodgman
http://www.blueridgemb.com/
Enthusiast Service, Restoration & Tuning.
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Located in the Atlanta area
Specializing in all pre and post merger AMG's including Hammers and DOHC M117 engines.
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  #7  
Old 03-23-2007, 09:15 AM
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Well actually the fuel distributors do have screens (9) and they can be cleaned. The first one is located inside the fuel inlet fitting screwed into the fuel distributor body. Remove it, use solvent and reverse air pressure to clean it out. There is one each on the fuel discharge ports (8 in total) and use use the same proceedure to clean them. Flushing the gunk out if the body is a bit more difficult. I use brake parts cleaner and air pressure to flow every which way through the body to flush any particles out. I have cured 5 out of 6 fuel distributors this way. The one that did not get cured had holes in the diaphram.
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I got too many cars!! Insurance eats me alive. Dave

78 Corvette Stingray - 3k
82 242 Turbo Volvo - Manual - 270k
86 300e 5 speed manual - 210k
87 420sel - 240k
89 560sl - 78k
91 420sel - 205k
91 560sel - 85k
94 GMC Suburban - 90k
97 Harley Davidson Heritage Softail - 25k
00 GMC Silverado 1 ton 30k
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  #8  
Old 03-23-2007, 09:46 AM
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Interesting, I didn't see any screens in the FD I took apart..

Jonathan
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Jonathan Hodgman
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Specializing in all pre and post merger AMG's including Hammers and DOHC M117 engines.
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  #9  
Old 03-23-2007, 03:08 PM
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so where are the 8 screens in the injectors, are they on the top or bottom?
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  #10  
Old 03-23-2007, 06:54 PM
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They can be seen thru the top of the distributor looking down into the 8 ports. I use a stereo microscope to see them. They are deep and illumination is key to seeing them. The main fuel inlet fitting is similar. Take it off and try to look thru it. Shine a light. You can see the screen. granted they are not large but they are there.
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I got too many cars!! Insurance eats me alive. Dave

78 Corvette Stingray - 3k
82 242 Turbo Volvo - Manual - 270k
86 300e 5 speed manual - 210k
87 420sel - 240k
89 560sl - 78k
91 420sel - 205k
91 560sel - 85k
94 GMC Suburban - 90k
97 Harley Davidson Heritage Softail - 25k
00 GMC Silverado 1 ton 30k
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  #11  
Old 03-23-2007, 07:12 PM
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johnlo,

the screens are black they can be seen where the fuel lines going to the injectors are connected on the FD.

Does any body know the way to get them out? They are made from plastic and I believe there should be a special tool with two longitudinal grooves.

I tried to extract the one on the main fuel screen without success

Bosch specialist may give some better advice on the right procedure.

lhodg5k,

I tried your link without success ,there seem to be a need for a user id and a password.
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Keep us posted especially if your problem is solved
Present cars:
My car: E-class 420CDI, 2008, W211, V8, 180 000km

Wife's one: C-class 220CDI Sport Coupé, Euro, 2002, W203. 345 000km

Son's one: GLK class 220CDI, 2009, W204

Sold E class 260E, W124, 1988 beloved car sold after 489 000 kilometres of reliable services (engine M103, clutch and 5 speed manual gear box all original).

E-class, W210 320CDI, 2000[/B], 225 000km, Sold

Last edited by cc260E; 03-23-2007 at 07:18 PM.
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  #12  
Old 03-23-2007, 07:31 PM
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Well, curiosity got the best of me so I disassembled one of my CIS E FD's and found the screens. I had been told the early US cars had screens but apparently my source had it backwards.

Right now I'm looking for my dig. camera to snap a few pics.

The screens came out after I dissembled the two halves and various other shims/pistons/springs/ etc, etc..

Not sure why you were having trouble w/ the link...your the first who has said they needed to log in..

Anywho, here's a direct link:
http://picasaweb.google.com/blueridgeMB/EuroM117500CISFuelDistributorTearDown

Jonathan
__________________
Blue Ridge Mercedes
Jonathan Hodgman
http://www.blueridgemb.com/
Enthusiast Service, Restoration & Tuning.
Follow Us on Facebook!
Located in the Atlanta area
Specializing in all pre and post merger AMG's including Hammers and DOHC M117 engines.
Mercedes Repair Atlanta
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  #13  
Old 03-23-2007, 07:32 PM
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Electrons can do anything
 
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Location: Houston, Texas
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No need to remove them. Dont even try. They are wedged in place. They will break of you try to get them out. DOnt ask me how I know this. Just reverse flow some solvent (carb cleaner) thru them using air pushing the solvent.
__________________
I got too many cars!! Insurance eats me alive. Dave

78 Corvette Stingray - 3k
82 242 Turbo Volvo - Manual - 270k
86 300e 5 speed manual - 210k
87 420sel - 240k
89 560sl - 78k
91 420sel - 205k
91 560sel - 85k
94 GMC Suburban - 90k
97 Harley Davidson Heritage Softail - 25k
00 GMC Silverado 1 ton 30k
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  #14  
Old 03-23-2007, 07:49 PM
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Join Date: Sep 2003
Location: France
Posts: 490
Quote:
Originally Posted by jhodg5ck View Post

Not sure why you were having trouble w/ the link...your the first who has said they needed to log in..

Anywho, here's a direct link:
http://picasaweb.google.com/blueridgeMB/EuroM117500CISFuelDistributorTearDown

Jonathan
Thank you, amazing pictures sharp and very instructive.
__________________
Keep us posted especially if your problem is solved
Present cars:
My car: E-class 420CDI, 2008, W211, V8, 180 000km

Wife's one: C-class 220CDI Sport Coupé, Euro, 2002, W203. 345 000km

Son's one: GLK class 220CDI, 2009, W204

Sold E class 260E, W124, 1988 beloved car sold after 489 000 kilometres of reliable services (engine M103, clutch and 5 speed manual gear box all original).

E-class, W210 320CDI, 2000[/B], 225 000km, Sold
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  #15  
Old 03-23-2007, 08:48 PM
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Join Date: Feb 2004
Location: Atlanta, GA
Posts: 1,405
Glad you liked them

Here are some of the CISE FD'er.

http://picasaweb.google.com/blueridgeMB/CISEFuelDistributor

Jonathan

__________________
Blue Ridge Mercedes
Jonathan Hodgman
http://www.blueridgemb.com/
Enthusiast Service, Restoration & Tuning.
Follow Us on Facebook!
Located in the Atlanta area
Specializing in all pre and post merger AMG's including Hammers and DOHC M117 engines.
Mercedes Repair Atlanta
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