Is there a name for this hose clamp?

[crasher98]

It looks kind of like a regular hose clamp except it has two little teeth that keep it from opening all the way with a moderate squeeze; hopefully you can see the teeth in the pictures, the first one shows the clamp in place and the second shows it squeezed up to the teeth.

It looks like the teeth would hold it open if you squeeze hard enough to get the end over the teeth, but not sure about that and not sure if a special tool is needed.

 

[NUTTSGT]

When I worked for Dayco, we made radiator hoses and some had clamps glued on them. The clamps were held open with a small clip that was removed on the automotive assembly line.

I wonder if that is a new clipless design to hold the clamp open until the hose is in place. I often wonder how many of those little steel clips got into places they shouldn't have or who cleaned them up.

 

[Farrier]

Looks like a regular compression hose clamp to me. I have a special plier I bought to compress those but I only use it for hard to reach places

 

[LS6 Tommy]

My post disappeared. Again. Like Nutts said, those are production line clamps that are locked open until installed by automated equipment. I don't know of a specialty tool to remove them.


They're better than the ol' Corbin "Crazy Chrylser Clips" :



If you didn't have a pair of Corbin Clamp pliers and tried regular pliers, they usually shot across the shop and got hopelessly lost:




Tommy

 

[tre873]

The teeth are there to hold the clamp open. Sometimes to have to tilt your pliers to get the edge over the teeth. Usually you can release the clamp with a flathead screw driver.

 

[Bad Eye Bill]

Dirty, rotten, %$#^&*(*^#@ gets used a lot here.

 

[LXCam]

I always considered the teeth being what hold it open. With it locked open you're able to position it then it doesn't take much force to "pop" that loose so it closes. I'll see if I can find the official name of that style.

 

[brownbagg]

toyota hose clamp

 

[NUTTSGT]

My post disappeared. Again. Like Nutts said, those are production line clamps that are locked open until installed by automated equipment. I don't know of a specialty tool to remove them.

Tommy

Not sure what happened Tommy but there is nothing deleted or hidden.





BTW, if that clamp is in the locked open position, I'd suggest "NOT" to try and unlock it in your bare hands.....remember I told you so.

 

[Lotek]

Corbin hose clamp, there are special pliers to remove them, if you can get them to stay locked open, then they can be installed more easily and you pop them off the hook with a flat bladed screwdriver. The ones GM use are different, and it's a crapshoot whether you can get them to lock open again, but it isn't a problem if they don't, just hold them open with the pliers. They provide more consistent clamping pressure and seem to have fewer problems than screw type clamps.

 

[Pathfinders]

Larry?

 

[crasher98]

Ah, thanks for the insights - the possibility that it's an assembly line clamp make sense, because it's in a spot -- under the intercooler of a Subaru STi -- where if a special tool is needed to open it all the way, it doesn't look like there would be any way that I could see to get the special tool on the clamp. Unless you take the IC off by disconnecting a bypass valve at the other end of the pipe that hose is clamped to, which is what I ended up doing. Now I'll have to reuse a gasket that (according to the shop manual) you're supposed to replace, but i see some other dummy already messed it up before me (see below) and the car was running ok so I should be able to get by w/ reusing it a little longer until I can get a replacement. Assuming I get the rest of the car back together of course....

Thanks for everyone's help!

 

[LS6 Tommy]

Not sure what happened Tommy but there is nothing deleted or hidden.

I probably didn't "Submit" before I started to edit the post...

Tommy

 

[crasher98]

Corbin hose clamp, there are special pliers to remove them, if you can get them to stay locked open, then they can be installed more easily and you pop them off the hook with a flat bladed screwdriver. The ones GM use are different, and it's a crapshoot whether you can get them to lock open again, but it isn't a problem if they don't, just hold them open with the pliers. They provide more consistent clamping pressure and seem to have fewer problems than screw type clamps.

yes, it looked like the teeth would hold them open nicely, but I was having trouble getting enough squeeze on it to get the end over the teeth, and then I was worried about getting it off the teeth when the time came to close it again. Thanks for the tip about the screwdriver tho, I bet that would work w/ this one.

 

[crasher98]

Dirty, rotten, %$#^&*(*^#@ gets used a lot here.

Yep, it sure did!

 

[pattenp]

Those spring style clamps are a lot better than the worm gear screw type clamps. The spring clamp allows expansion and contraction with temperature changes. The problem with worm gear clamps you may find you develop leaks when the vehicle sits in cold weather and the clamps need to be tightened. You may need to keep having to tighten over and over again which in turn crushes and may damage the hose. There are now heat shrink sleeves available for clamping radiator hoses.

 

[apollo11]

Those spring style clamps are a lot better than the worm gear screw type clamps. The spring clamp allows expansion and contraction with temperature changes. The problem with worm gear clamps you may find you develop leaks when the vehicle sits in cold weather and the clamps need to be tightened. You may need to keep having to tighten over and over again which in turn crushes and may damage the hose. There are now heat shrink sleeves available for clamping radiator hoses.

Until it's hot and the hose expands the clamp and the hose comes OFF
Ask me how I know.

 

[theoldwizard1]

They're better than the ol' Corbin "Crazy Chrylser Clips" :

I never heard them called that but it did seem that only Chrysler used them.

If you didn't have a pair of Corbin Clamp pliers and tried regular pliers, they usually shot across the shop and got hopelessly lost:

Or if you were trying to take them off, the pliers would simple slip off. Locking pliers (Vice Grips) worked a little better than regular pliers, but not much.

 

[pattenp]

Until it's hot and the hose expands the clamp and the hose comes OFF
Ask me how I know.

You must have had another problem that led to this.

 

[Schurkey]

GM put similar clamps to that one on my Trailblazer rad hoses. They're marvelous. Squeeze 'em to lock them open, move or replace the hose...and when you've got them positioned where you want them, they snap closed on command.

I don't know how they'd be any more perfect, except to have an assortment of sizes available to retro-fit onto older vehicles.

As with all clamps, the rubber hose under them will cold-flow over time. The spring clamp will maintain tension to a point, but as the rubber thins, eventually the clamp loses tension. About the only "fix" is to replace the hose so that the wall thickness is restored.

 

[scissorman]

That style of clamp is called a constant pressure clamp.

 

[ckucia]

Those constant pressure clamps are great. Except the old worm clamps tended to be stainless and would last decades, while these new clamps appear to be made out of rust-fast-ic steel. Seems every time I go to remove one from a vehicle with any miles on it, those clamps disintegrate.

 

[theoldwizard1]

As with all clamps, the rubber hose under them will cold-flow over time. The spring clamp will maintain tension to a point, but as the rubber thins, eventually the clamp loses tension. About the only "fix" is to replace the hose so that the wall thickness is restored.

Don't tell the lower radiator hose and spring clamp that on my 21 year old truck !

Cars built in the 60s/70s needed new hose about every 5 years. I don't know what changed or when, but I like it !

 

[Bad Eye Bill]

^^^^Agreed. I haven't replaced a rad hose in I don't know how long.

 

[rlitman]

Until it's hot and the hose expands the clamp and the hose comes OFF
Ask me how I know.

Do tell. Were these Gates Powergrip clamps you had an issue with?

 

[dave89iroc]

engineering speak calls those "CT" or Constant Tension clamps