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Securing rubber hose to metal tubing? #5445331 06/03/20 01:15 PM
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joshuawesl Offline OP
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I'd like to add a transmission cooler to my newest vehicle purchase. I have one of those Hayden coolers and some rubber hose. I'm thinking I can cut the aluminum return line that leads back to the transmission and install the cooler here. I'm concerned with the rubber hose slipping off of the metal tubing though. Would hose clamps be enough? The tubing isn't flared or barbed. I figured I could take some sandpaper and scuff it really good, clean it with brake cleaner, and put two small hose clamps on each connection? Or should I try something different?

Re: Securing rubber hose to metal tubing? [Re: joshuawesl] #5445335 06/03/20 01:21 PM
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Zaedock Offline
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Hose clamps should be fine. What vehicle is this going on (engine too)?

Edit - Looks like it's the 4.7L Durango?


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Re: Securing rubber hose to metal tubing? [Re: joshuawesl] #5445372 06/03/20 01:52 PM
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ls1mike Offline
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Buy a cheap flare tool. They are cheap and it is easy. When I install an aux cooler like that I always flare them. Takes 5 minutes then you don't have to worry.
My first motor home had an aux cooler, previous owner did not flare the lines and I had one blow of. Luckily it happened at startup.

A cheapo one like this works fine.

[Linked Image]


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Re: Securing rubber hose to metal tubing? [Re: ls1mike] #5445376 06/03/20 01:56 PM
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nwjones18 Offline
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Originally Posted by ls1mike
Buy a cheap flare tool. They are cheap and it is easy. When I install an aux cooler like that I always flare them. Takes 5 minutes then you don't have to worry.
My first motor home had an aux cooler, previous owner did not flare the lines and I had one blow of. Luckily it happened at startup.

A cheapo one like this works fine.

[Linked Image]




This is what I was going to say. I had a radiator installed and for whatever reason they hadn't flared the cooler return line and it leaked, even with multiple mega tight clamps on it until I took the time to flare it then reinstall the hose. No more issues after that.


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Re: Securing rubber hose to metal tubing? [Re: joshuawesl] #5445377 06/03/20 01:56 PM
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Rhymingmechanic Offline
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A cleaner way to do it (vs. cutting lines) would be to find a barbed fitting for your radiator outlet.

Then remove the return line from the radiator, install the fitting, and clamp one hose to the fitting and the other to the return line.

Most coolers I've installed had fittings in the kit.

Re: Securing rubber hose to metal tubing? [Re: joshuawesl] #5445405 06/03/20 02:28 PM
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Rhymingmechanic Offline
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Here's a kit to do what I'm talking about. Click on the customer image.

https://www.etrailer.com/Accessories-and-Parts/Derale/D13030.html

Re: Securing rubber hose to metal tubing? [Re: joshuawesl] #5445448 06/03/20 03:29 PM
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Chris142 Offline
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We glue the hose on with Gasket cinch and add 2 hose clamps. Once it dries that hose will have to be cut off to be removed,.


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Re: Securing rubber hose to metal tubing? [Re: joshuawesl] #5445479 06/03/20 03:52 PM
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eljefino Offline
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Flare, baby flare!

Re: Securing rubber hose to metal tubing? [Re: joshuawesl] #5445495 06/03/20 04:06 PM
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bdcardinal Online Content
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I totally missed the initial point if this and though you wanted to secure hose to a cage. There is a company called NotcHead that makes really cool little clamp fitting things for that purpose. https://www.youtube.com/watch?v=Vkub5Ls8qF0


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Re: Securing rubber hose to metal tubing? [Re: joshuawesl] #5445600 06/03/20 06:04 PM
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Mainia Offline
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Use 2 of these and you will not have a problem. Spray them with Fluid Film after, so they don't rust is you are in the salt belt.

https://www.amazon.com/DYWISHKEY-Mu...ose+clamps&qid=1591225236&sr=8-9


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Re: Securing rubber hose to metal tubing? [Re: Chris142] #5445682 06/03/20 07:44 PM
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CT8 Offline
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Originally Posted by Chris142
We glue the hose on with Gasket cinch and add 2 hose clamps. Once it dries that hose will have to be cut off to be removed,.
This.


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Re: Securing rubber hose to metal tubing? [Re: joshuawesl] #5445836 06/04/20 04:46 AM
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Lubener Offline
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Originally Posted by joshuawesl
I'd like to add a transmission cooler to my newest vehicle purchase. I have one of those Hayden coolers and some rubber hose. I'm thinking I can cut the aluminum return line that leads back to the transmission and install the cooler here. I'm concerned with the rubber hose slipping off of the metal tubing though. Would hose clamps be enough? The tubing isn't flared or barbed. I figured I could take some sandpaper and scuff it really good, clean it with brake cleaner, and put two small hose clamps on each connection? Or should I try something different?

Metal tubing has to be flared to keep it leak free and from coming loose. Bubble flare is best as a single or double flare such as a brake line can cut into the hose when you tighten the clamp.

Last edited by Lubener; 06/04/20 04:53 AM.

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Re: Securing rubber hose to metal tubing? [Re: Rhymingmechanic] #5445884 06/04/20 07:08 AM
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joshuawesl Offline OP
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Originally Posted by Rhymingmechanic
Here's a kit to do what I'm talking about. Click on the customer image.

https://www.etrailer.com/Accessories-and-Parts/Derale/D13030.html



Wow. That is cool! I think that's the route I'll go. No cutting, just adapt and install. Thanks so much for the idea!

Re: Securing rubber hose to metal tubing? [Re: ls1mike] #5445910 06/04/20 07:44 AM
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BEETLE Offline
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Rent "Flare Tool" at auto parts such as AutoZone or Oreily's for free as long you return it in a day or 2

Last edited by BEETLE; 06/04/20 07:46 AM.

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Re: Securing rubber hose to metal tubing? [Re: joshuawesl] #5446065 06/04/20 11:20 AM
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Rhymingmechanic Offline
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Originally Posted by joshuawesl
Originally Posted by Rhymingmechanic
Here's a kit to do what I'm talking about. Click on the customer image.

https://www.etrailer.com/Accessories-and-Parts/Derale/D13030.html



Wow. That is cool! I think that's the route I'll go. No cutting, just adapt and install. Thanks so much for the idea!


I was surprised to see the one with two fittings, but it makes sense. The coolers I have installed had a fitting for the radiator and then I just clamped the other end to the factory line. The flare on those lines probably wasn't ideal for a hose connection.

The good thing about this installation is you can easily revert to stock if you need to.

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