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Leak from new radiator hose and new clamp #4380608
04/16/17 12:51 AM
04/16/17 12:51 AM
Joined: Apr 2017
Posts: 7
USA
garyfishell Offline OP
garyfishell  Offline OP
Joined: Apr 2017
Posts: 7
USA
Hi so I have a leak on a 2002 Ford Mustang V6 from the lower radiator hose specifically around the radiator clam and I can't figure out what's wrong. Whenever I tighten the clamp it stops the dripping so maybe that has something to do with it but I'm not sure.

The clamp is a screw clamp so not the stock one and it seems to leak all the time but again I'm not too sure.

Any help would be great, thanks!

Re: Leak from new radiator hose and new clamp [Re: garyfishell] #4380613
04/16/17 12:58 AM
04/16/17 12:58 AM
Joined: Sep 2004
Posts: 7,796
Marshfield , MA
andyd Offline
andyd  Offline
Joined: Sep 2004
Posts: 7,796
Marshfield , MA
Buy a tube of Permatex Aviation Forma Gasket. Use a new clamp.


'16 Camry LE STP synth 0w20 and STP filter. the Fridge

1994 Ranger ,the Rat, 5w30 dino, STP filter

'16 Camry SE, Valvoline HM 0w20 and OEM filter
Thick oil is better grin2
Re: Leak from new radiator hose and new clamp [Re: garyfishell] #4380615
04/16/17 01:03 AM
04/16/17 01:03 AM
Joined: Aug 2006
Posts: 9,882
Central Washington
Colt45ws Offline
Colt45ws  Offline
Joined: Aug 2006
Posts: 9,882
Central Washington
Ive had bad luck with screw clamps.
If you keep tightening the screw clamp be aware you can crack the plastic radiator. It might be worthwhile to check and make sure you didnt do just that.
Then while you have it open, and if its okay, slip on a gates powergrip clamp. They work like heatshrink tubing; you heat it to shrink it around the hose. When the car heats up they will adjust to the hose.
Measure the diameter of your hose and order the correct size.
http://www.gates.com/products/automotive...ing-chart-decal


-Colton
2002 Ford Crown Vic PI 207k, Ex-Kootenai County, ID Unit #42
Down for engine swap
2003 Ford Crown Vic PI 75k
Castrol EDGE HM 5W30, Fram XG2
Re: Leak from new radiator hose and new clamp [Re: garyfishell] #4380617
04/16/17 01:07 AM
04/16/17 01:07 AM
Joined: Jan 2007
Posts: 17,501
Clovis, CA
Merkava_4 Offline
Merkava_4  Offline
Joined: Jan 2007
Posts: 17,501
Clovis, CA
Originally Posted By: garyfishell
The clamp is a screw clamp so not the stock one


That's your problem right there.

Re: Leak from new radiator hose and new clamp [Re: garyfishell] #4380638
04/16/17 03:40 AM
04/16/17 03:40 AM
Joined: Aug 2015
Posts: 2,911
NC
BigD1 Offline
BigD1  Offline
Joined: Aug 2015
Posts: 2,911
NC
Had a few over the years that would not seal with the screw clamps. I just bought another screw clamp, and installed it 180 degrees, so I had two clamps on one hose. Drip or seep fixed.


1992 Toyota Pickup--Harvest King Premium 10W-30--Fram PH3614
Re: Leak from new radiator hose and new clamp [Re: garyfishell] #4380694
04/16/17 06:00 AM
04/16/17 06:00 AM
Joined: Jun 2003
Posts: 33,551
ME
eljefino Offline
eljefino  Offline
Joined: Jun 2003
Posts: 33,551
ME
Your hose is tired and compressed. A new hose could help.

But as said above I'd just smear RTV all over the rad nipple then reinstall the old hose and a new quality clamp.

Re: Leak from new radiator hose and new clamp [Re: eljefino] #4380701
04/16/17 06:23 AM
04/16/17 06:23 AM
Joined: Oct 2005
Posts: 4,407
Kansas
Kruse Offline
Kruse  Offline
Joined: Oct 2005
Posts: 4,407
Kansas
Originally Posted By: eljefino
Your hose is tired and compressed. A new hose could help.


Did you read the subject line?

Re: Leak from new radiator hose and new clamp [Re: BigD1] #4380867
04/16/17 09:47 AM
04/16/17 09:47 AM
Joined: Aug 2011
Posts: 9,560
Boston, MA
HerrStig Offline
HerrStig  Offline
Joined: Aug 2011
Posts: 9,560
Boston, MA
Originally Posted By: BigD1
Had a few over the years that would not seal with the screw clamps. I just bought another screw clamp, and installed it 180 degrees, so I had two clamps on one hose. Drip or seep fixed.
^ works for me.

Re: Leak from new radiator hose and new clamp [Re: garyfishell] #4380891
04/16/17 10:29 AM
04/16/17 10:29 AM
Joined: Jun 2003
Posts: 5,949
Illinois
SHOZ Offline
SHOZ  Offline
Joined: Jun 2003
Posts: 5,949
Illinois
This stuff works great for leaky hoses.

Permatex 85420 Permashield Fuel Resistant Gasket Dressing & Sealant, 2 oz Tube

https://www.amazon.com/Permatex-85420-Pe...esistant+Gasket


2008 Hyundai Accent 1.6L 5 sp manual hatchback
2010 Hyundai Genesis Coupe Track 2L Turbo 6sp manual
Re: Leak from new radiator hose and new clamp [Re: garyfishell] #4380933
04/16/17 11:33 AM
04/16/17 11:33 AM
Joined: Oct 2002
Posts: 22,168
Colorado Springs
Drew99GT Offline
Drew99GT  Offline
Joined: Oct 2002
Posts: 22,168
Colorado Springs
What colt said; if you keep tightening a screw clamp, it will cut into the hose. You may need to get a new hose and use a factory style spring clamp, or get one like this from Napa:

https://www.napaonline.com/en/p/SME187208000S

Re: Leak from new radiator hose and new clamp [Re: garyfishell] #4380938
04/16/17 11:41 AM
04/16/17 11:41 AM
Joined: Jan 2013
Posts: 911
California
Kool1 Offline
Kool1  Offline
Joined: Jan 2013
Posts: 911
California
I have an 03 CRV with 200,000 miles. I've removed the factory hose clamps from the radiator numerous times and they are out of shape from my manhandling of them over the years. I replaced them with worm drive clamps and had leaks despite tightening and retightening them. I finally bit the bullet and bought these.

http://www.oreillyauto.com/site/c/detail...word=hose+clamp

I torqued them down with a torque wrench and never had another leak. I've had these constant tension clamps on for a about year and am very happy with the no leak results.

Re: Leak from new radiator hose and new clamp [Re: garyfishell] #4381007
04/16/17 01:58 PM
04/16/17 01:58 PM
Joined: Nov 2006
Posts: 20,562
MA, Mittelfranken.de
Trav Offline
Trav  Offline
Joined: Nov 2006
Posts: 20,562
MA, Mittelfranken.de
If you can wait a week or so there may be a free sample coming for Hylomar for Bitog members, that will cure the leak better than any other product you can buy and together with a constant tension clamp like the one kool1 posted it will be permanent and removable. Stay tuned.


ASE L1, Master. Deutsch Meisterbrief.
Re: Leak from new radiator hose and new clamp [Re: garyfishell] #4382164
04/18/17 03:26 AM
04/18/17 03:26 AM
Joined: Jan 2011
Posts: 2,821
N.Ohio
Lubener Offline
Lubener  Offline
Joined: Jan 2011
Posts: 2,821
N.Ohio
If the hose is old, change it. I never had a leak issue using worm screw clamps.


The "thinking" man's friend.
Re: Leak from new radiator hose and new clamp [Re: garyfishell] #4432431
06/15/17 02:03 PM
06/15/17 02:03 PM
Joined: Apr 2017
Posts: 1,481
Ontario, Canada
mightymousetech Offline
mightymousetech  Offline
Joined: Apr 2017
Posts: 1,481
Ontario, Canada
Using a gear clamp on a coolant hose will always leak eventually. As the hose heats up and expands, a gear clamp will not expand with it making it tighter, pinching the hose. Then as it cools it will loosen off again Repeat this a couple hundred times and it will leak for sure. This is why OEM use some kind of spring tension clamp, like a corbin. If a gear clamp has been used, recommend replacing the hose and using a proper clamp.


Mighty Mouse Tech
BMW Tech, Former Acura Tech
2010 Civic Si Castrol 0W40, Redline MTL
2013 BMW 135i M Sport Edition Castrol 0W40, Redline MTL
Re: Leak from new radiator hose and new clamp [Re: garyfishell] #4434447
06/17/17 03:54 PM
06/17/17 03:54 PM
Joined: Nov 2006
Posts: 20,562
MA, Mittelfranken.de
Trav Offline
Trav  Offline
Joined: Nov 2006
Posts: 20,562
MA, Mittelfranken.de
Get a clamp like this one..

https://www.amazon.com/Breeze-Constant-S...sion+Hose+Clamp

And a tube of this..

https://www.amazon.com/Hylomar-172-148-U...ds=hylomar+blue

Remove the hose and wipe the nipple clean then smear a thin film of Hylomar on the nipple the push the hose on and tighten the clamp. It will never leak again guaranteed.
The nice thing with Hylomar is it does not make removing the hose in the future difficult. You will not use the whole tube but don't worry once you use this stuff you will never be without it and it wont go off in the tube like RTV and end up in the trash.


ASE L1, Master. Deutsch Meisterbrief.
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