Help a rookie with cross threaded fuel hose fitting (1 Viewer)

[portlandcruiser]

I’m reconnecting the fuel hose which connects to the fuel pump after replacing the pump. The connection is cross threaded and I can’t seem to get it to work. The other end also has a rounded off 14mm. It seems like I should remove the whole hose and start over with new. But, I have no experience with fuel lines. How would Mud solve this? Help is much appreciated.

 

[php74]

Are you sliding the piece that’s on the steel line down to the flared end first? That will help you line things up easier.

 

[portlandcruiser]

I am. That’s the price that wants to thread wrong.

 

[Pighead]

1) That fuel line looks similar to brake line, which is easy to find and work with.
B) Several shops in my area (The Parker Store is one) will make new hard lines just like your old one. While you wait and not expensive.
III) Chase your threads with a die, or a thread file.

 

[php74]

Above number 3 is what I’d do too. If you don’t have a tap and die set would definitely be worth getting, even just a harbor freight one. Good luck.

 

[FJACS]

If you aren’t using a flare nut wrench stop and go get a cheapo set. They will save you doing any more damage to the fittings.

Those fittings are pretty forgiving. Pull the line back out. Clean the threads of the male end up if they are messed up. No die? Some gentle work with a hacksaw blade can work.

Line up the fittings and put the cross threaded end together first. Then manipulate the tubing so your other end lines up square prior to trying to put the fittings together.

If the fittings are ruined, chop them off and go get some new hardline and appropriately sized compression fittings from the auto parts store.

Don’t use any tools that make sparks.

 

[portlandcruiser]

1) That fuel line looks similar to brake line, which is easy to find and work with.
B) Several shops in my area (The Parker Store is one) will make new hard lines just like your old one. While you wait and not expensive.
III) Chase your threads with a die, or a thread file.

Thanks. I ordered a die and will try chasing the threads first. If that doesn’t work I can take the hard line off and have a replacement made.

 

[portlandcruiser]

If you aren’t using a flare nut wrench stop and go get a cheapo set. They will save you doing any more damage to the fittings.

Those fittings are pretty forgiving. Pull the line back out. Clean the threads of the male end up if they are messed up. No die? Some gentle work with a hacksaw blade can work.

Line up the fittings and put the cross threaded end together first. Then manipulate the tubing so your other end lines up square prior to trying to put the fittings together.

If the fittings are ruined, chop them off and go get some new hardline and appropriately sized compression fittings from the auto parts store.

Don’t use any tools that make sparks.

I’ll get a set of flair nut wrenches. I’m sure that’s why it rounded.

 

[3_puppies]

maybe it's my eyes, but which fitting has the issue?

 

[portlandcruiser]

maybe it's my eyes, but which fitting has the issue?

The bolted connection between the hose and hard line in the upper right of the photo.

 

[Pin_Head]

Just chase the threads and it will be fine because the fitting seals on the flare. Use flare wrenches. Flair wrenches are for flamboyant nuts that have more panache.

 

[FJ40Jim]

LOLz.

 

[portlandcruiser]

Just chase the threads and it will be fine because the fitting seals on the flare. Use flare wrenches. Flair wrenches are for flamboyant nuts that have more panache.

I got it pulled together but I had to pull off the hard line then clean up the threads with a thread file.

Thanks everyone. I learned about flare wrenches, thread files and fuel line fittings. That’s a start.

 

[88red]

I totally recommend the flare wrenches when working with brake and fuel lines like every one else here, but after taking many of these of these fuel pump lines apart my method of choice is now a good pair of vise grips on both nuts. Clamp the flat ends of the wrenches down as hard as you can and you wont end up rounding them off. The bigger the better when it comes to these wrenches because they usually take a lot of force to crack these nuts free.