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#4518905 - 09/17/17 07:51 PM Constant tension worm gear hose clamps
Drew99GT Offline


Registered: 10/11/02
Posts: 22125
Loc: Colorado Springs
Just have to mention, these things work awesome! This style with the bellville spring washer assembly that takes up slack from the expansion/contraction heat cycle of a hose.

https://www.napaonline.com/en/p/BK_7051504

I had to replace a small water bypass hose on the water pump for my Corolla and it's pretty much impossible to get the factory spring clamps back on there without a lift or removing the power steering pump, since it's on the back of the engine. I tried regular and lined heavy duty worm gear clamps and couldn't get it to stop leaking, but the constant tension ones has stayed leak free. Just an FYI if anyone has to use worm gear clamps and they end up leaking.


Edited by Drew99GT (09/17/17 07:53 PM)

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#4518915 - 09/17/17 08:02 PM Re: Constant tension worm gear hose clamps [Re: Drew99GT]
Kool1 Offline


Registered: 01/25/13
Posts: 906
Loc: California
I agree with you 100%. I bought similar clamps at O'Reilly Auto.

https://www.oreillyauto.com/detail/maste...mp47036/4458975

I had regular band clamps that would not stop leaking on my radiator hose so I tried the constant tension clamps and all leaks stopped. I've had these clamps on for about a year and a half and am very happy.

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#4519024 - 09/17/17 09:55 PM Re: Constant tension worm gear hose clamps [Re: Drew99GT]
motor_oil_madman Offline


Registered: 11/29/09
Posts: 4845
Loc: Houston, Texas
I need a couple of these. I wonder if they make 2" diameter ones.
_________________________
2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.


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#4519025 - 09/17/17 09:56 PM Re: Constant tension worm gear hose clamps [Re: Drew99GT]
motor_oil_madman Offline


Registered: 11/29/09
Posts: 4845
Loc: Houston, Texas
is that what causes it? I thought it was engine vibration.
_________________________
2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.


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#4519031 - 09/17/17 10:05 PM Re: Constant tension worm gear hose clamps [Re: Drew99GT]
L_Sludger Offline


Registered: 10/04/09
Posts: 3947
Loc: Ohio
Nice to hear that these clamps worked out well for you, Drew. Another arrow to put into my quiver for situations like the infamous leaking hard-to-get-to heater hose. I had a similar situation with a Toyota Cressida almost two decades ago, ultimately I think I ended up double clamping with worm drives to get it to stop leaking. Back then I didn't know any better.
_________________________
too many cars and oil combinations to list in 150 characters or less

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#4519117 - 09/18/17 04:35 AM Re: Constant tension worm gear hose clamps [Re: Drew99GT]
dlundblad Offline


Registered: 09/30/13
Posts: 10012
Loc: Indiana
The constant tension clamps for the heater hoses in my truck are not working anymore. I'll swing by NAPA sometime this week hopefully.

Leaking at the heater core and pump housing. I originally thought my pump was leaking where the heater hose pipe meets the housing, but who knows now.
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#4519163 - 09/18/17 07:02 AM Re: Constant tension worm gear hose clamps [Re: motor_oil_madman]
Trav Offline


Registered: 11/20/06
Posts: 18856
Loc: MA, Mittelfranken.de
Originally Posted By: motor_oil_madman
I need a couple of these. I wonder if they make 2" diameter ones.


Sure do almost to 7". I buy them in bulk from Rock.

http://www.rockauto.com/en/tools/hoses/pipes+&+clamps,clamp

If you want it 100% leak free put a thin coat of Hylomar M (google for best price) on the hose nipple then just snug the clamp, you will still be able to remove the hose at any time in the future without difficulty.
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#4519186 - 09/18/17 07:37 AM Re: Constant tension worm gear hose clamps [Re: Drew99GT]
DBMaster Offline


Registered: 09/18/12
Posts: 5322
Loc: DFW
For 25 years I have had 100% adequate performance simply reusing the tabbed spring clamps that came with the car. I only use replacement clamps if the hose nipple shows signs of significant pitting. If it ain't broke...

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#4519339 - 09/18/17 11:16 AM Re: Constant tension worm gear hose clamps [Re: DBMaster]
Drew99GT Offline


Registered: 10/11/02
Posts: 22125
Loc: Colorado Springs
Originally Posted By: DBMaster
For 25 years I have had 100% adequate performance simply reusing the tabbed spring clamps that came with the car. I only use replacement clamps if the hose nipple shows signs of significant pitting. If it ain't broke...


So have I, but sometimes the location of hoses is detrimental to reusing the factory spring clamps since you have to have a large pair of vice grips to install them.

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#4519441 - 09/18/17 01:45 PM Re: Constant tension worm gear hose clamps [Re: Drew99GT]
UG_Passat Offline


Registered: 05/27/08
Posts: 1966
Loc: NJ
Originally Posted By: Drew99GT
Originally Posted By: DBMaster
For 25 years I have had 100% adequate performance simply reusing the tabbed spring clamps that came with the car. I only use replacement clamps if the hose nipple shows signs of significant pitting. If it ain't broke...


So have I, but sometimes the location of hoses is detrimental to reusing the factory spring clamps since you have to have a large pair of vice grips to install them.


That's why I have the cable operated tool,
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2016 VW Tiguan|APR Stage 1|Neuspeed P-Flo|Osram CBI|Redline 5w30

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#4519451 - 09/18/17 01:55 PM Re: Constant tension worm gear hose clamps [Re: Drew99GT]
Traction Offline


Registered: 06/04/13
Posts: 978
Loc: iowa
After using the CT clamps, I'll never use a regular worm clamp again.
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Tire Industry Association Certified Tire Service Instructor since 2009
13 Tahoe Pursuit
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#4519593 - 09/18/17 05:23 PM Re: Constant tension worm gear hose clamps [Re: Traction]
user52165 Offline


Registered: 10/21/11
Posts: 1331
Loc: CA

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#4520301 - 09/19/17 01:19 PM Re: Constant tension worm gear hose clamps [Re: user52165]
George7941 Offline


Registered: 05/10/05
Posts: 2158
Loc: Toronto, Canada
I second the shrink clamps. I haven't had a single leak with shrink clamps, so they are what I use for tough to seal hoses.
_________________________
2006 GMC Sierra 4.3l, NV3500,G80 , Mobil 1 5W30, Dexcool.
1987 BMW R80 - sold
2015 Honda CBR300R

Staying out of the right lane a lot.

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#4521722 - 09/20/17 10:15 PM Re: Constant tension worm gear hose clamps [Re: Drew99GT]
researcher Offline


Registered: 04/12/12
Posts: 252
Loc: Michigan
I had trouble with the genuine Toyota clamps I got from the dealer. only 3 out of 4 were able to slide on! I measured the diameter of one neck the clamp was supposed to go on and there was NO way the one from the dealer was going to fit. I double checked their part number and that's what Toyota said was correct. Not in this dimension! lol..

I went with a constant-tension worm hose clamp and PERFECT fit! I got mine from Oreilly. I've always liked the spring clamps the dealer has, but this is practically the same idea! No leaks just tightened it down til it was snug and not smashing the heck out of the hose end! lol

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#4521743 - 09/20/17 10:36 PM Re: Constant tension worm gear hose clamps [Re: researcher]
kschachn Offline


Registered: 12/26/05
Posts: 9390
Loc: Upper Midwest
Originally Posted By: researcher
I had trouble with the genuine Toyota clamps I got from the dealer. only 3 out of 4 were able to slide on! I measured the diameter of one neck the clamp was supposed to go on and there was NO way the one from the dealer was going to fit. I double checked their part number and that's what Toyota said was correct. Not in this dimension! lol..

I went with a constant-tension worm hose clamp and PERFECT fit! I got mine from Oreilly. I've always liked the spring clamps the dealer has, but this is practically the same idea! No leaks just tightened it down til it was snug and not smashing the heck out of the hose end! lol

Was the hose an OEM hose? I had an aftermarket hose on my ECHO once and the clamps wouldn’t fit as you describe. I installed a Toyota hose and the clamps fit fine.
_________________________
1994 BMW 530i, 227K
1996 Honda Accord, 262K
1999 Toyota Sienna, 394K
2000 Toyota ECHO, 267K

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