What's this thing doing in my radiator hose?
#1
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What's this thing doing in my radiator hose?
1999 Jeep Cherokee Sport, 6cyl, 4l
I'm replacing my radiator, and I've removed the old one. Have not started putting in the new one yet. Inside the radiator hose that connects to the bottom corner of the rad I found a metal coil spring, about 5" long. Do I need to put this back in the hose before I install the new rad? Why is it in the hose? Thanks!
I'm replacing my radiator, and I've removed the old one. Have not started putting in the new one yet. Inside the radiator hose that connects to the bottom corner of the rad I found a metal coil spring, about 5" long. Do I need to put this back in the hose before I install the new rad? Why is it in the hose? Thanks!
#2
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Join Date: Jul 2011
Location: NC
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Year: 1995
Model: Cherokee
Engine: 4.0 HO
Mine had one in it aswell. I think its meant to keep the lower hose from collapsing and blocking flow to the engine under certain conditions. Leave it in there. Worked fine with it so why possibly mess up something.
#5
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How can you procure a spring for your lower rad hose if you do not currently have one? Is the dealership the only way?
#6
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Year: 1999
Model: Cherokee(XJ)
Engine: 4.0L
Find a hobby store or nice hardware store and get a length of "Piano Wire". Wrap around something that matches the ID of the rad hose. Install. Bonus if you can find stainless piano wire.
After scouring the net for about 10 minutes, they ARE for sale on performance sites. Or, just make your own.
After scouring the net for about 10 minutes, they ARE for sale on performance sites. Or, just make your own.
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#8
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Find a hobby store or nice hardware store and get a length of "Piano Wire". Wrap around something that matches the ID of the rad hose. Install. Bonus if you can find stainless piano wire.
After scouring the net for about 10 minutes, they ARE for sale on performance sites. Or, just make your own.
After scouring the net for about 10 minutes, they ARE for sale on performance sites. Or, just make your own.
#9
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Year: 1995
Model: Cherokee
Engine: 4.0L HO
Note: While it certainly doesn't hurt to have the spring for an added protection from collapsing, most newer hoses are molded with a process that makes them stiff enough that they no longer require a spring. If your hose didn't come with one it likely doesn't need it, but if you have a factory spring in good condition it can't hurt to swap it in or if you just want the "peace of mind" of having the spring in there.
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