The Jubilee clamp was developed over 100 years ago
Precisely.
If you want modern, why not swap to heat shrunk sleeves?
Try this simple test:
wander into any workshop that might be expected to connect a hose to something, and have them show you what they would use. If it isn't a genuine Jubilee clip(which is still a family owned company 100 years later) it will be a derivative. That's why they're readily available from any source of hardware.
Spring clamps are good enough on automotive coolant systems because they're low temp/pressure water. If you increase the temp and/or pressure, or change the fluid then better fittings are required. So you move through worm drive, T-bolt band clamps(which make a good exhaust clamp), then proprietary screw together fittings and into hydraulically swaged ones.
Sadly, because some have always used jubilees, thats all they use, and the workshops are full of the pieces of shite. As previously stated, as a quick bodge to get you out of trouble, they have a place. But to replace a better clamp with them is an unusual stance.
But you won't find them in any modern workshop, because they are not that good, particularly on smaller applications like cars.
Also, you would find any on modern cars, because they aren't suitable.
You won't find them on performance cars (unless the tuner is an old fella who believes carbs and points give more power), because they aren't suitable.
In rare cases, you may find other types of worm drive, like T bar or that one with an retained nut and bolt and the name escapes me. These are kinder to hoses and plastics, and far less likely to leak than a jubilee, but still suffer the problem of a pinch point, and the variations of fitting by different technicians.
I did have a long chat with a man who built F1 engines in a former life, and we tried to think of any scenario when a jubilee would be a good choice on a car. And failed. Unsurprisingly, seeing as years ago I recall a similar discussion with car designer Bro, although he did say some old British cars made by the Norfolk carrot crunchers used some odd hoses, so when he did his old Europa, he did use worm drive clamps (but not jubilees).
As said, we'll never agree on it. I believe you are incorrect, and you believe I am. Differences are healthy though
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