No, the screen in a wagon or the older models (with bottom drain) is
not attached to a hose. Just unscrew the plug and the screen comes
out with it. Simple. The fuel pickup is inside the tank and it stays
put. These all have the tank between the frame rails ahead of the
bumper.
123, 126 and later sedans with the seat behind the back seat have the
hose coming out the middle of the plug that holds the screen in.
So now I am worried. I thought all I had to do was unscrew the coarse
screen filter with my 22mm hex tool (allen) but it appears the end of the
filter that is inside the tank will be attached to some sort of fuel hose
that i will need to disconnect in order to R/R the filter. Or maybe not.
On Tue, Jun 15, 2010 at 4:43 PM, Dieselhead <126die...@gmail.com> wrote:
The 123 wagon tank is analogous to the underbody fuel tank in the 110, 111,
112, 108, 114 and 115 tanks, (pre-1977 or so) Drain is a large female hex
in the middle of the bottom side of the tank. The screen is inside the
drain plug. All three fuel lines go into the tank, and the inlet comes from
inside the screen, then through the tank to the front of the tank, where it
exits, as Philip says.
> > You wrote
>
> There is no hose on the wagon. The filter screen
> is simply part of a huge plug that screws into the bottom of
> the fuel tank.
LarryT wrote:
Then how does the fuel come out and get to the engine? I have
a spare fuel tank fitting in my garage - just looked at it -
in the center should be a attachment for a fuel line to go to
the engine - this is the main fuel feed. There's a return line
elsewhere.
The sedan is different than the wagon.
On a sedan, the bottom of the fuel tank is above axles.
On the wagon, the bottom of the fuel tank is the lowest point
under the body between the bumper and the differential -
analogous to the spare tire well on the sedan.
So on the sedan, the fuel outlet is a hose attached to the
middle of the strainer plug unit.
On the wagon, it would promply be torn off! So the outlet
pipe is actually inside the tank. It run from the strainer to
the front of the tank and out through the side.
Earlier I made an error in my correction of my previous error.
Making a mistake when correcting an error is, well,
embarrassing... The fuel supply line is not with the guage
sender, but it's own port low on the front of the tank.
Perhaps your tank has a drain plug? But it won't have a
filter screen on it - no need for one.
The "plug" for the strainer looks a bit like a drain plug -
but it has as screen in it. It is actually a two layer outlet
port. This is sort of like a banjo bolt. The screen has two
sealing surfaces. The upper one seals to the tank body. The
"downstream" side of the screen is the space between the upper
and lower seals. This consists of a pipe wrapping around the
hole - but with the side facing the hole removed. The pipe
leads out to the port at the front of the tank.
I picture could work so much better than words for this...
-- Philip
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_______________________________________
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To Unsubscribe or change delivery options go to:
http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
_______________________________________
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