Yes, more anger from this guy. What's the deal with those stupid hose clamps that you have to squish with visegrips or whatever you have at hand? I replaced the coolant reservoir assembly in my RX8 today, and I have this burning desire to destroy the person who thought these things were a good thing. That is all.
They're constant tension, so they hold and seal better than the worm screw type. Those get frequently overtightened, or left untightened.
With the right tool, popping constant tension hose clamps off is a breeze.
What the man in the window said. They're actually better.
Yeah, sure, ok, but I still hate them as well....
A constant tension hose clamp that is underneath bodywork in front of the radiator with about 2" of clearance is very frustrating and not fun. I had to push the bottom part of the reservoir into it's slot while sliding the hose on while keeping the constant tension clamp open, then sliding the clamp onto the hose while it was in a place I couldn't see. Very frustrating, but doable. Time to buy another RX7, lol.
What fox said. But l hate them too.
I can't stand them. Whether or not they're better than worm clamps or t-bars, i don't care. I replace them. ALWAYS.
So....what's the proper tool?
It's just that with one of the other clamps, I would have spent more time removing the airbox and battery than anything else, since I could have just slid a screwdriver in there and tightened it. I just get frustrated when I keep having to start over.
ultraclyde wrote: So....what's the proper tool?
Yeah, I would like to know. I used a pair of visegrips.
ultraclyde wrote: So....what's the proper tool?
something like these. autozone's got a pair for like 35 bucks.
WilberM3 wrote:ultraclyde wrote: So....what's the proper tool?something like these. autozone's got a pair for like 35 bucks.
Am I the only person that thinks this looks like some kind of medieval torture device?
I'm pretty sure they are also a significant cost savings in both material AND labor for the manufacturer.
They come pre-glued to the hose (in one spot) with a little stamped clip holding them open. All the assembly line operator has to do is pop the little clip off and "snap" it's clamped.
I think that's the real driver...or at least one of them...behind the use of these clamps by manufacturers.
Clem
rotard wrote:WilberM3 wrote:Am I the only person that thinks this looks like some kind of medieval torture device?ultraclyde wrote: So....what's the proper tool?something like these. autozone's got a pair for like 35 bucks.
No, you're not the only one. My nipples hurt just looking at it.
Just for once will someone acknowledge that worm gear clamps provide constant force too? It can output a lot more as well.
In reply to 92CelicaHalfTrac:
YDIW (Your Doing It Wrong)
In reply to tuna55:
Nope, you have up to three different materials in that situation and none of them have the same thermal expansion rate.
I hate any kind of hose clamp. Give me quick release or give me death (by snu-snu)
And why don't Stainless Steel hose clamps ever include a stainless steel screw? Hello? That is the part that I need to remain functional!
ansonivan wrote: In reply to tuna55: Nope, you have up to three different materials in that situation and none of them have the same thermal expansion rate. I hate any kind of hose clamp. Give me quick release or give me death (by snu-snu)
I promise that if I strain gauged it you'd see constant force, probably moreso than with a spring clamp.
tuna55 wrote: It can output a lot more as well.
That is the problem most of the time. Worm gear clamps are most often overtightened and that damages the hose.
What I hate most about worm gear clamps is the excess band that sticks out of them. They all end up as little blades in the engine bay ready to slice open my hand/arm when it slips from a ratchet or something.
tuna55 wrote:ansonivan wrote: In reply to tuna55: Nope, you have up to three different materials in that situation and none of them have the same thermal expansion rate. I hate any kind of hose clamp. Give me quick release or give me death (by snu-snu)I promise that if I strain gauged it you'd see constant force, probably moreso than with a spring clamp.
Nope. We have tried every kind of clamp in our products, and spring clamps are by a large margin the easiest on hoses. For a clamp to provide a constant force, it has to expand and contract with the hose, and screw clamps do not, unless they have a coil spring built in. The more correct term for these clamps is temperature compensating. All of our OEM customers require them in their products. Standard screw clamps lead to early hose failure. Spring clamps expand and contract with the hose and do not cause hose failure.
rotard wrote: A constant tension hose clamp that is underneath bodywork in front of the radiator with about 2" of clearance is very frustrating and not fun. I had to push the bottom part of the reservoir into it's slot while sliding the hose on while keeping the constant tension clamp open, then sliding the clamp onto the hose while it was in a place I couldn't see. Very frustrating, but doable. Time to buy another RX7, lol.
Sounds more like a bad design from Mazda than anything else.
Also most of the clamps supplied to the OEM's are already "spread" with a clip holding the tabs together. So, with just a quick action of the wrist, the clip is gone and the hose is tight.
As much as I hate them, they are handier then E36 M3 to have, even if they are in the wrong place and angle.
About the only turnable clamp that is similar is the T-post clamp. Those things ain't cheap either.....
tuna55 wrote: Just for once will someone acknowledge that worm gear clamps provide constant force too? It can output a lot more as well.
No. When the hose expands when heated, a worm clamp doesn't expand and as a result the force is increased - e.g. not constant force.
Getting one of those spring clamp tools was an epiphany moment for me. It allows you to easily remove and install clamps in tight places where a worm clamp would be a real PITA.
I also have a special tool that re-secures the wierd spring-clip clamps that are all over the engine bay of a MINI (was part of the same hose clamp kit).
ok, I give up - nobody will acknowledge it.
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