[W126 Coupe] Fuel Leak

[eurotech1 at charter.net]

That is your electrohydraulic adjuster for the fuel distributor (EHA).If you unplug it and remove the two screws and remove it, you will find two o-rings that seal the two passages that fuel flows through (be sure to relieve the fuel system pressure BEFORE loosening the screws). Simply replace the old dried out o-rings, and your problem will be solved, unless of course, the unit is cracked, inspect it carefully while you have it off.

                       Later,
                       Chris
============================================================  
> From: "Henry Viveiros" <henryviv at grantspass.net>
> Date: 2005/03/24 Thu PM 02:16:25 EST
> To: "Mbcoupes at Mbcoupes. Com" <mbcoupes at mbcoupes.com>
> Subject: [W126 Coupe] Fuel Leak
> 
> My wife's 1986 560 SEC has a fuel leak where a black plastic device is
> attached to the fuel distributor (the metal piece that has 8 lines going to
> the cylinders). The Fuel distributor ( ? ) is a remanufactured Bosch that
> has a tag 0438 101 018, and the plastic piece with an electrical connection
> has a cast-on number -2437020007. There is a leak where the plastic piece
> mounts to the side of the fuel distributor with 2 screws. There doesn't seem
> to be a gasket, and the screws are tight (I don't want to ruin it by over
> tightening). There is fuel under pressure at that connection.
> 
> Anyone have any idea what I should do. Do I replace the plastic thing or
> what?
> 
> 
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