For sigfurniture. Trick to remove fuel tank strainer. - Mercedes-Benz Forum

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post #1 of 22 (permalink) Old 01-21-2014, 09:58 AM Thread Starter
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For sigfurniture. Trick to remove fuel tank strainer.

Make sure to drain the fuel tank first.

When I removed my strainer, I did not have an allen wrench that large, but I did happen to find an old wheel lugnut
(about 20mm across) that was a very close fit. Just put it in and then use a wrench to remove.

The last photo is what my strainer looked like after sitting for about 15 years. I also dropped the tank and had
it boiled overnite to remove any other sediment and rust. The guy who did this for me has been doing these
for over 40 years, he said if the tank cleans up well to NOT coat it because sometimes the coating can peel
inside and plug up your strainer. When my tank was off, I also capped the fuel line by the tank, then from the
front of the car, I pored some liquid fuel line/tank cleaner into the lines, let it sit for 30 minutes, then uncapped the
line and gently blew it out with the compressor. I did this several times. I would recommend doing this, that way
if you do have issues with a rough or underpowered running engine, you will at least know that from the tank to the
fuel pump you are ok.
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Last edited by Luna Gaudi's 72 250; 01-21-2014 at 04:53 PM.
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post #2 of 22 (permalink) Old 01-21-2014, 11:08 AM
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I used a large bolt with double nuts on it. The bolt head fits very securely and the double nuts tighten up as you remove the filter. Looks like your filter was due for a change!
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post #3 of 22 (permalink) Old 01-21-2014, 11:22 AM
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Is this the nut at the bottom of the tank?
I've never removed mine
Will gas come out? What's the best way to check it?



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post #4 of 22 (permalink) Old 01-21-2014, 11:42 AM Thread Starter
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Kav, gas will come out of there as fast as the oil comes out when you drain it, so you want to have an empty fuel tank before you remove it. I was having
all sorts of stalling and loss of power problems because how of how mine was plugged up. I had no idea that strainer was there until it was suggested
on this forum to drain the tank and check it. That last photo shows what I found.

Last edited by Luna Gaudi's 72 250; 01-21-2014 at 12:39 PM.
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post #5 of 22 (permalink) Old 01-21-2014, 12:40 PM
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That is insane
Now I have to remove it and check or it will bug me
Did you replace with a new one or just clean the old one?


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post #6 of 22 (permalink) Old 01-21-2014, 01:10 PM Thread Starter
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I ordered a new one with a group of other parts. So I had it on hand before I was able to
drain the tank. The dirty one in the photo was able to clean up like new, so I could have
re-used it, but because I had a new one, I went ahead and put the new one on.

Kav, you can check yours for peace of mind, but if you havn't experienced any issuse
that seem like its starving for fuel, I'm sure yours is ok.

Last edited by Luna Gaudi's 72 250; 01-21-2014 at 01:22 PM.
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post #7 of 22 (permalink) Old 01-21-2014, 01:12 PM Thread Starter
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Quote:
Originally Posted by Peoria Benz View Post
I used a large bolt with double nuts on it. The bolt head fits very securely and the double nuts tighten up as you remove the filter. Looks like your filter was due for a change!
I like your idea better and probably easier to find a bolt then a lug nut that has to fit and be long enough for a wrench to grab it.

Last edited by Luna Gaudi's 72 250; 01-21-2014 at 01:18 PM.
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post #8 of 22 (permalink) Old 01-21-2014, 02:11 PM
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I had my tank boiled out and recoated a year and a half or so ago. Probably one of the best things I did too.
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post #9 of 22 (permalink) Old 01-22-2014, 06:58 AM
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I welded a bolt with the head the right size to a pipe and made a great wrench to get it out.
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post #10 of 22 (permalink) Old 01-22-2014, 07:33 AM
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Smart use of a lug nut to remove the drain nut and filter.
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