How to remove these crimped hose fittings?

[Quickstep192]

How can I remove these crimped connectors without scarring the tube to which they are connected?

These are the hard fuel lines that go up into the engine compartment.

I probably don’t have to mention that it’s tight quarters up in there.

[LuftWaffle]

Dremel with a cutoff wheel. Cut a slot thru the collar and use a flat blade screwdriver to pry it open.

[EC900]

Yes, I used a cordless Dremel at real slow speed, slow and steady, cut a line lengthwise along the ridge portion if possible (lessens the chance of cutting through) just deep enough and thin enough so there’s a groove that the screwdriver can dig it and crack it open like a clam. Pliers can help peel away any stubborn portions.

[ThomasTe]

Don´t cut anything. Just unbolt the other end of the hard line in the engine compartment, and remove the entire fuel line.

[famoroso]

My uncle, Porsche factory trained master mechanic, owned an independent repair facility for 35+ years and cut countless (hundreds and hundreds) of these factory ferrules off and replaced them with German hose clamps (i.e. non-worm drive / fuel injection clamps).

Different location, same dynamic. I used a Dremel with a flexible shaft attachment...












Of course, the usual disclaimers apply, work in a well ventilated area, try and minimize sparks (slower cut-off wheel speeds) and have some type of fire suppression handy.