[Wagon dreamer]

One more question: I have a fuel leak from the fuel inlet or fuel return on the fuel tank. I have heard that this is a common problem in these models. There are two fuel lines attaching to the tank. One is a hose attached to a metal fuel nipple. The other (the leaking one) is a fuel hose attached to a conical piece which then attaches to a metal fuel line on the tank. I am not sure what this conical piece is but suspect it may be the culprit. I wanted to ask around before I remove the tank.

Thanks,
Chris

 

[mercmad]

Drop the tank any way,it is only held in by a maximum of 4 bolts.Don't weld it while it is empty.either fill it with water or Nitrogen .At a pinch you can run a hose from a running gasoline car exhaust pipe to the tank filler,this will fill the tank with carbon monoxide and displace oxygen ,Making it safe to weld or whatever.

 

[Wagon dreamer]

Thanks, turns out that the tank has an outlet pipe which is just under 1/2" outer diameter. This pipe was connected to a factory steel fuel line with 5/16" outer diameter. A flared piece of 3" long fuel line bridged this gap and was rotten as all get out. I bought some brass nipples from the hardware to reduce the size, used two segments of hose and voila. The only question I have to the designers is "WHY?" Especially the annal, no nonsense German engineers. Oh well one problem off my list.

Chris

 

[mercmad]

The tank you have also has a return ,right?,it's the same tank as the 300Se,220Se etc and where you bridging peice was is normally where you would find the feed pump for the Mechanical fuel injection on the gasoline cars.No pump,there froe they put a bit of pipe there in it's place.Diesel is corrosive because it's hydroscopic .It attracts water and that is what ruined the connector pipe.plus old age[8D]