Thermostat Housings

Heating, Cooling & AC

  1. oldbee

    oldbee FBBO Gold Member FBBO Gold Member

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    IMHO, I’d be making sure the housing is flat,flat. OE housing & thermostat housing and never a leak with a normal gasket & regular gasket sealer on both sides. Maybe I’m lucky?
     
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    • khryslerkid

      khryslerkid FBBO Gold Member FBBO Gold Member

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      Thanks for all the replies. Might have a OE on the way. I've always said you can't beat what Ma Mopar originally used.

      I could tell this aftermarket housing is starting to warp in the center. Then snugging it up made it worse. Stay tuned.
       
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      • 33 IMP

        33 IMP FBBO Gold Member FBBO Gold Member

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        I have fixed the chrome ones.
        I used to racer tape a full sheet of 80 grit sandpaper to a granite surface plate i had (it was 11,000 lbs, lol) and sand the warp out in a circular motion. Then, an oak full sheet sanding block i made, using the surface plate again, to smooth the pump housing off. Not having access to the plate anymore, ibwould use a pane of glass with the sandpaper. Ive used that technique on holley main bodies that were warped too.
        The pic is what I'm using on my 62. I dont know where it came from, or even if it is iron or aluminum. Hooked to a 26" big block cordoba radiator, with the extra fins core.

        20190326_103034.jpg
         
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        • tonysrt

          tonysrt Well-Known Member

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          Mine was so warped, I could see day light through it. I guess we keep tightening it to stop the leak but all were really doing is bending it more. There was no way sanding would have fixed mine. And with the 15lbs of pressure in the system would push out the silicon.
           
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          • Shorthorse

            Shorthorse Well-Known Member

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            I like what Lionized did. I know you already ordered a new OE one but I wanted to put in another thumbs up for the billet, O-ring style. I've use them on my race cars. The Billet Specialties has a thick flange to protect against warping. I don't use any goop so no mess and no clean up. I've had them off and back on for various reasons and there are still no leaks. I'll never go back to a flat gasket style housing.
             
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            • funknut

              funknut Well-Known Member

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              • khryslerkid

                khryslerkid FBBO Gold Member FBBO Gold Member

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                Follow up...

                Member @Cranky came to the rescue and gave up one of his OE housings to a worthy cause :lowdown:

                @texas69bee I tried the Permatex for water pumps and t-stat housings.
                20190802_194123.jpg

                You can see that I had used the Fel-Pro gasket. The cast aluminium, chrome housing had warped .030
                20190802_200619.jpg

                20190802_222423.jpg

                Following the directions, it reminded me of the black gasket maker that I used on my aluminium valve covers. Apply sealant, install finger tight, let it set up for an hour then torque to specs. Let it cure for 24 hrs. before allowing fluid contact.
                20190802_213857.jpg 20190802_214207.jpg
                20190802_214937.jpg
                20190802_232122.jpg

                Went to a show today, all's well so far :thumbsup:
                20190804_125430.jpg
                 
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                • texas69bee

                  texas69bee Well-Known Member

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                  Glad to hear all is going well so far. I’ve had mine on for 2 yrs and no problems yet.
                   
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