W115

1975 240D Relocate Fuel Filter

Hi,

I need to know the size of a fuel hose.

It's the clear fuel hose that returns fuel from the injector pump to the top of the fuel filter. The barb connection on top of the fuel filter and the banjo/barb fitting on the back side of the I.P.looks to be slightly smaller the the other banjo/barb fittings on the fuel filter. I have 5/16 hose on all my other banjo fittings and would think it would be the same size, but it looks smaller.

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1975 240D Auxillary Fuel Pump Veggie Oil

I installed the mercedessource auxillary fuel pump 3 years ago, works great. Just got car back from mechanic and now the pump is constanly clicking every half second to one second. Like it's not building up pressure.(He should not have been anywhere near the pump or wires) Before it would click fast until it built up pressure then slow down to one click every 1-2 seconds. No leaks, so fuel is not being pumped out. Car runs fine but the pump isn't performing like before. What should I to look for?

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1976 240D Manual Trans Stuck in Gear ??

Out of the blue, I am driving home and the gearshifter will not allow me to change gears, more like to get out of what I believe is either 2nd or 3rd gear. Anyone have an answer on what it could be? I don't want to have to get it towed and fork over $$$ to a mechanic, but if this isn't something I can fix myself, I guess that I will have to.

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