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1986 Hard Fuel Line Repair and Fuel Pump Replacement
I'm looking for advice to resolve a fuel pump issue. This started with a leaking hose I tried to fix myself. While unscrewing the hose from the hard fuel line (I believe it’s the supply line), I accidentally bent and crimped the line (see pictures). Now, the car is inoperable.
I’m confident I can swap in a new fuel pump, but I’m unsure about the damaged line. Can I flare the crimped section and reattach the fitting, or will I need to replace the entire hard fuel line? If flaring is possible, what fittings would I need, and what size flare should I create for the line?
Any detailed instructions would be certainly appreciated. The more detail the better.
For now, I’m searching for a used fuel pump from a junkyard, but I’d like to eventually build a new one. I’d prefer not to buy from Mercedes Source due to the cost. If anyone has a tested pump for sale, I’m interested.
This is my first time tackling something like this, and I’m a bit lost. I’ve scoured YouTube, W126 forums, and Facebook posts but haven’t seen anyone addressing a damaged hard fuel line. Any advice, pictures, or guidance would be greatly appreciated! I am also in Atlantic Beach Fl, if anyone on this forum knows anyone that can help me fix this properly. I want to learn and not screw this up any more than I already have I am desperate to get this car road worthy again. Top left line is the concern Close up of top left hard line ( is this supply line )
smaller line tends to be supply for engine and larger one return to tank.
IS this a high pressure pump or normal? I forget.
How did they connect to pump?
If normal you could use hose and some band clamps.
IF high pressure you need to make tube round again or cut back to where it is round and use tubing cutter to ensure you to not squeeze it out of round.
Then use flareless fittings with the Ferrule (think copper water lines)
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