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06-05-2022, 10:21 PM
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#1 |
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Registered User
 Join Date: Dec 2013
Location: Dunwoody,Ga
Posts: 443
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? for Entropy radiators
I have a Entropy radiator for my LS/LC9 in my 70. The overflow fitting has machine treads instead of pipe threads.
My ? is how has anyone sealed the overflow fitting to the radiator. I used many layers of silicon plumers tape. This only last a few months before it breaks down and then no suction-no refill. I also tried form-a-gasket but the antifreeze seems to not let it cure. Any suggestion would be appreciated. |
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06-05-2022, 10:37 PM
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#2 |
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Who Changed This?
Join Date: Jan 2013
Location: Simi Valley, CA
Posts: 10,100
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Re: ? for Entropy radiators
If you have the correct thread fitting, use something like Permatex Indian Head sealer. You'll be cussing when it's time to take that fitting out, though.
__________________
~Steven '70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper Simi Valley, CA |
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06-06-2022, 12:40 AM
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#3 |
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Registered User
Join Date: Aug 2009
Location: Bowser
Posts: 13,515
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Re: ? for Entropy radiators
Can’t you just drill it out and rethread it.
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06-06-2022, 02:03 PM
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#4 | ||||
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"I ain't nobody, dork."
Join Date: Sep 2007
Location: Whidbey Island, Washington
Posts: 8,921
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Re: ? for Entropy radiators
What did Entropy suggest?
Gary
__________________
'cuz chicks dig scars... My 1972 GMC 1500 Super Custom (Creeping Death) "long term" build thread. The Rebuild of Creeping Death after the wreck Quote:
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06-06-2022, 03:56 PM
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#5 | |
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Registered User
Join Date: May 2019
Location: Lakewood
Posts: 81
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Re: ? for Entropy radiators
Quote:
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06-06-2022, 09:47 PM
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#6 |
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Registered User
Join Date: Dec 2013
Location: Dunwoody,Ga
Posts: 443
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Re: ? for Entropy radiators
retap voids warenty
Entropy said silicon tape but it doesn't last. Tomorrow I will take a look and see if an O ring might work Thanks |
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06-06-2022, 09:55 PM
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#7 |
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Registered User
Join Date: Aug 2009
Location: Bowser
Posts: 13,515
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Re: ? for Entropy radiators
I searched and found several different machine thread barbs but not sure what you need.
You got a quick pic of it plus size? |
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06-07-2022, 07:34 AM
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#8 |
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Registered User
Join Date: Sep 2020
Location: Cleveland, Ohio
Posts: 478
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Re: ? for Entropy radiators
I use this stuff. BBC engines require thread sealer on the head bolts as the bolts go into water jackets. I have never had a problem.
https://www.permatex.com/products/th...ith-ptfe-4-oz/ |
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06-07-2022, 09:15 AM
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#9 |
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Registered User
Join Date: Aug 2009
Location: Bowser
Posts: 13,515
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Re: ? for Entropy radiators
A further search found this.
Are you sure the barb isn’t 1/8 inch npt. The threads on them look a lot like machine threads. https://www.stevesnovasite.com/threa...nipple.680827/ |
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06-07-2022, 09:36 PM
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#10 |
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Registered User
Join Date: Dec 2013
Location: Dunwoody,Ga
Posts: 443
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Re: ? for Entropy radiators
1/8 npt wont fit
The barb fitting is what came with radiator Thanks to typerr's suggestion - I took a closer look at neck and found a flat boss where its drilled and tapped. This will enable the use of an oring. Thanks to all |
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