1996 850 - Fuel filter change tips

[abscate]

Just Dremel it off and secure the filter with zip ties.

Dremel it before you release the lines and have gas everywhere

[theobviousfaker]

Hi everyone,

I wanted to change the fuel filter on my '96 850 but I cannot get the lines of the old one. They are stuck so badly, that the metal "nose" on one side filter filter already broke off and is now stuck in the fuel line connector. I've tried to extract it until it was mangled beyond saving, so I have now pulled off the whole connector off the line.
The other line (from the tank) is still stuck to the filter. I've tried to leverage it off with an open ended wrench and half a meter of pipe for leverage - now movement AT ALL. Has anyone ever encountered this? I attached some pictures for reference. The inside of the connector is all plastic and there is no corrosion visible anywhere. The fuel line itself rotates freely around the filter nipple. Its the small red plastic ring inside the connector that seems to have married the filter nipple. What the hell is this?

I will have to replace the one destroyed "quick" release (right..), but I would like to save the other one. Simply, because I'm afraid that after replacing both ends the lines will be too short to attach to the filter. Any ideas?
Also, what type is that connector? Or any other type that might fit? I can't find it at my local (german) Volvo-specific online parts dealers. I will have to ask around, but maybe someone knows already.

[abscate]

It’s a two handed affair

Your right hand grabs a vice grip with a purchase on the right hand fuel line and pushes it towards the fuel filter

Needle nose pliers in the left hand push the red locking ring towards the vice grip

Once the red ring goes in, a SLIGHT twist on the vice grip to break the orings inside the fitting free

Then the filter will pull out of the fitting

I think you will need a new fitting on the other side. That’s an ugly job, but fuel leaks are an even bigger job involving fire and a new car

[theobviousfaker]

Thanks for the answer, abscate. Unfortunately it did not work, so I cut the old line and got some outside help. I was provided two Renault quick connectors for standard 8mm fuel lines and a piece of salvaged 8mm fuel line. Plan was to just stick a piece of new line into the old line (securing it with two clamps) and connect the new line and the filter via the quick connectors (filter is also 8mm)
Turns out that the original Volvo fuel line is just a standard 8mm line wrapped with a secondary rubber protection layer, so the original plan was foiled.

I improvised:
1. On the line leading to the engine, I cut some of that outside rubber away and connected filter and line directly.

2. The line from the tank was now too short, obviously, so I had to extend it. But I was missing a third quick connector. I managed to find a piece of clear tube with just under 8mm inner diameter that fit over both lines and secured it with clamps. See pictures for clarity.

Additional note: I wrapped the new filter in some self-vulcanizing tape. It was slightly smaller in diameter and the old filter had corroded onto the big clamp and was actually leaking fuel! At least after I removed the clamp.

I think you will need a new fitting on the other side. That’s an ugly job, but fuel leaks are an even bigger job involving fire and a new car

Yeah, guess what? One of those quick connectors actually leaks fuel at the filter nipple when I rotate it. That was a brand new originally packaged piece. Wtf? And it also only "connects" but never "DISconnects"... so I guess I have to cut out the brand new filter and do it all over again. *groan*