W123 Fuel tank filter (screen)
My '80 300D (W123) has been suffering from fuel starvation for a couple of weeks. I replaced the fuel filters in turn, and have deduced that the problem is the filter in the tank becoming clogged. I removed the pipe from the filter and only got a dribble from it.
I used compressed air to blow out the crud and re-primed the fuel system, but the problem came back after a couple of kilometers. I removed the fuel tank and swilled fuel around and poured it into a drum. I repeated this a few times and reinstalled the tank. This fuel starvation has not come back. There is a lot of crud in the bottom of the drum I used for the dirty fuel. Is there a special tool for removing the filter from the tank to allow cleaning? I did notice that the fuel return line seems to go to the bottom of the fuel tank (this is how I drained the tank). Is there any good reason for me not to swap the fuel delivery and return lines on my 300D if the problem comes back? ( I carry spare clear fuel filters to replace these on the roadside). |
Did you actually remove the tank screen? Hard to tell by your description. Suposedly the screen is easy to remove and clean or replace from the tank. I say supposedly cause I did not do it yet .
Do a search here for I recently asked a simular quesion. Use my name in the author blank to help it pop up faster. |
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New thread
This new thread just popped up that relates to this one. Where to get the tools to remove screen cover
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Thanks
Thanks for the link to your previous thread, I tried searching on strainer and filter and fuel + tank and starvation, but got too many hits to be able to wade thru. :(
I was not able to remove the strainer, so I have swapped the fuel supply and return lines today. :cool: I went for a drive and the fuel starvation problems have disappeared. ;) I have a good supply of in-line fuel filters and can change them in 5 minutes or less. I will post again when the tank has gone to the Reserve level. |
Re: Thanks
Quote:
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Due to the blocked strainer, the fuel flow from the pipe in the strainer (the fuel delivery pipe) was a slow dribble. When I removed the return line, the fuel flow was good. In fact it almost completely drained the tank, with less than 1 litre of fuel remaining in the tank when I removed it. I am confident that I will not lose ANY tank capacity by reversing the fuel lines.
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