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Good question, I don't believe radiator hoses necessarily come with a spring anymore for some reason. Manufacturers say they aren't needed.
If you can see the lower hose collapsing though, as you describe, it's certain to be a major issue at highway cruise speeds/RPM. Fixing this would go a long way to remedying the issue I'd wager.
You can roll yer own spring easily. Coat hanger material would be plenty strong enough.
I have gates hoses. And there supposed to be made of something that won't collapse but I call bs on that since the hose has done that since it was new. So I tried and tried to find one with a spring or a spring to put in and couldn't ever find one. So what would be something good to wrap it around?
I have gates hoses. And there supposed to be made of something that won't collapse but I call bs on that since the hose has done that since it was new. So I tried and tried to find one with a spring or a spring to put in and couldn't ever find one. So what would be something good to wrap it around?
Yea a spring in a modern hose is rare these days, they claim they just dont need em.
So question would be how old is that hose?
Might better just replace it with a fresh one if have doubts, I agree with those before me, what you describe sounds like a lower hose collapsing under exactly that condition. The water pump puts quite a bit of vac on that lower hose when running at highway speeds especially if the stat isn't open very much from the onset, an older weakened hose wouldn't stand a chance under those conditions.
Determine the inside diameter of the hose, find a form that is the same size, and wrap the wire material around it to form a spring that will run the length of the hose. Insert spring into hose, secure clamps, go for a beer. It's OK if it extends into the radiator or water pump housing a bit. This is rocket science, but it ain't that bad.