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lower radiator hose spring
#1
Ok, I've done searches and read multiple posts at various car sites related to the spring in the bottom hose. Some people say not needed since the spring in the bottom hose was a manufacturing thing and Kevin Marti site has a not needed explanation. Others swear by using the spring to stop collapse.

Siince the majority of the posts are not the most recent I wanted to ask peoples opinions related to the topic. Also since the hoses are off my engine and flushing the radiator, I wanted to check to see if the spring was needed before putting everything back together.

What are people opinions here? Is it only needed for high rpms? Is it only needed if hoses are old and more prone to getting soft and collapse? Are newer hoses reinforced better than they were 40 years ago?

If I get the spring, are there any suggestions / tricks / techniques used to thread it thru the hose? I'm trying to picture how I would get a spring thru a rubber curved hose of the same diameter... Or, if it worth the effort

Thanks!
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#2
I installed a new one when I put my motor back together. The purpose is to prevent collapse of the lower hose. It is not difficult to install. Like any spring, as you turn it to feed it in the diameter gets slightly smaller and goes in with ease.

'73 Grandé H Code. Headman long tube headers, T-5 Transmission, 3.70 Traclok, Lowered 1" all around, Aussie 2v heads w/ 2.19 intake, 1.71 exhaust, screw in studs, full roller cam 608/612 lift 280/281 duration LSA 112, Quick Fuel 750 CFM double pumper, AirGap intake.

'73 F code convertible. Bright red. Needs total restore. (IE HOT MESS)

- Jason
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#3
I have one in mine - not sure if it's actually 'necessary', but it is cheap insurance against a collapsing hose at higher RPMs.

Bob

Tachs, Voltmeters, Headlight kits, Wiper delays and more at
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Rocketman's Classic Cougar (and Mustang) Innovations, LLC
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#4
(02-16-2018, 09:27 AM)73pony Wrote: I installed a new one when I put my motor back together. The purpose is to prevent collapse of the lower hose. It is not difficult to install. Like any spring, as you turn it to feed it in the diameter gets slightly smaller and goes in with ease.

Are you turning it the way its coiled or opposite of the way its coiled? Lubrication of any kind in the hose?
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#5
(02-16-2018, 11:47 AM)SteveO_71 Wrote:
(02-16-2018, 09:27 AM)73pony Wrote: I installed a new one when I put my motor back together. The purpose is to prevent collapse of the lower hose. It is not difficult to install. Like any spring, as you turn it to feed it in the diameter gets slightly smaller and goes in with ease.

Are you turning it the way its coiled or opposite of the way its coiled? Lubrication of any kind in the hose?

I did not lube it. I can't remember which direction I turned it slightly to reduce diameter. If you turn it one way it get slightly smaller and the other direction it get slightly larger.

'73 Grandé H Code. Headman long tube headers, T-5 Transmission, 3.70 Traclok, Lowered 1" all around, Aussie 2v heads w/ 2.19 intake, 1.71 exhaust, screw in studs, full roller cam 608/612 lift 280/281 duration LSA 112, Quick Fuel 750 CFM double pumper, AirGap intake.

'73 F code convertible. Bright red. Needs total restore. (IE HOT MESS)

- Jason
  Reply
#6
Thanks for the info!
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