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Old 09-11-2006, 03:18 PM
Triple G
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Radiator Hoses for Hot Rod

I'm looking for help with a radiator hose problem. My '23 Model T Ford Roadster (T-Bucket) has a Chevy 350 Small Block with a Walker Radiator. The current hoses are Total Performance "CoolFlex" flexiable hoses with rubber sleeves and standard hose clamps holding them on the fittings & hoses. Problem is they keep coming off (even when tightened as tight as they'll get) and spraying coolant all over my ride, etc.

The radiator has a 1-1/2" upper fitting with a lip and the bottom fitting is 1-3/4" lipped. The water neck on the intake manifold is 1-1/2" chrome (standard Chevy) with a lip and the waterpump is 1-3/4" chrome "WITH NO LIP" This is the hose I have the most problem with.

Questions: Does anyone have any experience with such a situation and what
type hose & manufacture would you recomend?

Is there a way I could "rough-up" the chrome finish on the
waterpump and apply a coating like a bedliner finish to "grip" the

I've considered standard stock (formed) radiator hoses (if I could find ones to fit ... another problem) with braided-socks and chrome fittings, but not really sure how to proceed? I'm also looking at flexiable hoses advertised in the Speedway Catalog, but they don't give diameters, only lengths?

This problem has got me so mad, I'm about ready to have a Pressure Vessel Welder come in and weld seemless pipe in place of the hoses ... just kidding guys. Whatever I do, it's got to look Good ... it's a Hot Rod with lots of chrome!

Let's here from the experts!


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Old 09-11-2006, 04:39 PM
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can you safey wire the hoses and still make it look good, i nean running a wire to a bolt close by
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Old 09-11-2006, 04:40 PM

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As far as molded hoses go, the best way is to bend a piece of welding rod or coathanger to the bend you want on the centerline. go to your partshouse and match it up to a hose that will fit. You may have to cut a piece out of a longer hose to get the curve you want.
The water pump can be grooved with a grinding wheel. A couple grooves about an 1/8th inch apart will do the job. Being as there is no lip on the pump means it has already been ground and who knows how much so keep them shallow.
Take a piece of 60 grit paper and rough up where the hose goes. Chrome does not give a surface that the rubber can grip. It has to have some surface irregularity. Best to get all the chrome off where the hose seats.
Overtightening the clamps will not help and will cause damage to the hose. A screw type clamp should only be tightened enough to make the rubber fill the slots in the strap. T bolt clamps should be tightened till the strap is about half depressed into the rubber. tbolts with a spring are the same but don't put the spring into coil bind.
Clean the inside of the hose with rubber cleaner before installing. Lubricants are your worst enemy.
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Old 09-11-2006, 05:57 PM
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Dont know if this helps, but you can get these in like 18,20,22,24 up to 30 inch and they have different ends so you can match them up with the different ends on yer radiator. HG

I was built with the body of a God! To bad it was buddah.

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Old 09-11-2006, 06:55 PM
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I have a tbucket same as you and had the exact problem. The water pump end of the lower hose blew off and sprayed the car and the inside of my garage. I took a small medium grinding disk in my dremel tool and roughed up the surface of the water pump hose outlet. I got it really rough and it has not been a problem again in 3 years of service.
I have a standard hose on it with 1 clamp. Originally I had 2 clamps and it still blew off.
Just rough it up and your issue will go away.

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