The bolt on the bottom of the W114/115 tank? Try 24mm. I bought "the right tool" from the benz dealer in manhattan way back when. They gave me a slight discount since it was a used tool right off a work bench.

When I saw, it I just started laughing. It was a big bolt with a 24mm head and two nuts jammed together. It worked like a charm. No clue where that tool is these days. That was like 12 years ago.

-CTH

 

Oh, snap! I didn't even think of that! A couple of minutes with a drill and a few dollars for a huge bolt would be way better than paying $19 or so for a "special" tool I'm only going to use once or twice! Thanks!

 

VICTORY! Well almost. I finished plugging the fuel lines back together the way they're supposed to be - still using clear vinyl so I can see what's flowing - and the car ran for about 45 minutes. I let it get nice and warm and I even drove it a couple miles. A few times at idle it got rough so I pumped the purge valve a few times to fill the tank > inline filter hose and it smoothed back out. Strangely, the line from the injector pump to the canister filter isn't full, it's just spitting small amounts of fuel up the line, as is the return line. Stranger yet is that the car idled for 20 minutes after I drove it (then stalled) without me doing anything. The tank to filter line has some fuel pooled in it but no flow. Does the injector pump hold a certain amount of fuel in it? I did not yet get to the screen in the tank but when I do I'm not going to clean it - I'm going to chuck it in the trash.

<img src "http://s24.photobucket.com/albums/c39/SakoTGrimes/Mercedes%20fuel%20problem/?action=view&current=leak.jpg">

I am also leaking fuel from all the looped return lines at the injectors, (that can't be good - time for repleacement) and this, which I never noticed before. I hope some metal rings will fix it.