Technical Compression fitting keeps sliding off?

I have this compression fitting. It keeps sliding off the end of the line. The others look the same but are on sturdy. I’ve never dealt with one like this what is going on? Thanks

 

I’m sorry but those pictures are not descriptive enough. What are we supposed to be looking at?

 

it's something on a wwII chevy truck, but I don't know what. There might be a fuel line coming from the pump down low, heading over to the carb on the other side. Or from the fuel tank, perhaps from the front of the frame rail. There might a crankcase breather with a PCV tube connecting to it. Or even an oil filter line, but that should be further back?

more info...

 

Buy a proper flaring tool.

Don't use compression fittings. You now know why.

 

I would argue that there is nothing inherently wrong with compression fittings in certain applications; they wouldn’t be ubiquitous if they didn’t work reliably. I would also argue that there are no compression fittings in that picture in the first place. It looks like a Bigfoot quality picture of some kind of cone seat fitting…

 

I’d be more worried about the radiator hose but like said I have no idea what I’m supposed to be looking at

 

Are you saying the crimped end keeps coming off the hose? If so you need to replace the hose. They’re a one time fit with a crimping tool.

 

That looks like something that has a proprietary female fitting vs compression. I've seen them before on old shit but the bell it's ringing is encrusted with cobwebs. Looks like a "Gozinta" style fitting, as in it gozinta another fitting vs compression. Any chance we can get a better pic and also what it...gozinta?

 

I didn't find Waldo and have no idea what you're trying to show us.

The fitting you seem to be trying to show us is not in focus in either of those photos, and we don't know what it's supposed to connect to.

Better pictures of both sides and a better description would help.

 

Has the look of a quick release airline fitting, kinda!

Chris

 

Looks to be threads & a tapper seat as a seal .

 

Now it's all clear to me.

 

I think your compression fitting is to big for that line



It's normally used for something the size of a coil

 

Me too!

 

My eye sight is not that great ,
The Blurred Op picture I can see/ make out there is
Threads & a Cone shape tapper seal with a stem !

 

Oh, it’s one of those… Gotta throw the whole car out.

 

You guys are horrible lol

 

A prime example of of good photos getting good answers and bad photos or vague questions getting not so good answers.

I've never seen compression sleeves used on anything except tubing with the correct compression nut and there has to be a bit of tubing sticking out past the sleeve. I don't know what you are attempting to do but it looks to me like you are following behind someone who did things wrong.

 

Although it’s only been a day, OP hasn’t come back to restore order so this has become the equivalent of an unattended whiteboard in a factory break room. The sad part is it will probably take 30 seconds to get the answer to his question once he clarifies it.

OP- we need better pictures of the fitting in question, as well as a better description of what/where it is slipping off. A clear picture of the fitting in its state of disrepair would be even better. Car year/make/model/engine will also help in case it’s a 1928 hupmobile that only two guys are familiar with, and a description of where the line in question starts and originates so that we know what kind of fluid it is transferring. Also, pics of the car simply because we like those.

 

Maybe yes, but consistent!

 

you can tell what it is from his username, I mentioned in post #3 that it's a WWII chevy truck.

 

He's been on the site in the last half hour, maybe he's staying away from this thread to avoid the abuse

 

I’m back! Everybody calm down lol. Sorry for a bad pic it was dark and outside. Here’s the fitting going to an oil bath cleaner on a 270 GMC. How are these installed?

 

I was going to post about that type! I hate them. The cone end is supposed to compress around the tube when you tighten it against the seat at the bottom of female port, Looks like maybe just not tightening enough? Be sure the tube stays past the end of the cone.

 

IF that fitting is supposed to compress around the tube, you're not tightening it enough to compress it.

 

If you don't have the correct female fitting for it, it will never get tight.

 

Please show us a picture of what you're putting it into.

Thanks for the nice clear picture of the end of the tube, that helps!

Those fittings were used on a few places on old trucks, a smaller one (1/8" tube) was used for the oil pressure gauge. I've been able to find new nuts for them, it's called a threaded sleeve nut.

 

I think that was it! I also may have not got the tube all the way into the fitting. It’s snug now, thanks for the help!