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Copper head gasket sealer

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    Posted: 26 Jan 2022 at 5:39pm
  What do you guys use for copper head gasket sealer?   I used Permatex copper sealer and it was gone, except for hints of it directly under head bolts where the most squish was.
2-8050 1-7080 6080 D-19 modelE & A 7040   R50       
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Post Options Post Options   Thanks (0) Thanks(0)   Quote PaulB Quote  Post ReplyReply Direct Link To This Post Posted: 26 Jan 2022 at 6:27pm
The engines that I've had copper head gaskets on, I've used O-rings to seal the water and oil passages and fire rings on top of the sleeves. Nothing on the copper gasket itself. 
If it was fun to pull in LOW gear, I could have a John Deere.
If you can't make it GO... make it SHINY
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Post Options Post Options   Thanks (0) Thanks(0)   Quote NEVER green Quote  Post ReplyReply Direct Link To This Post Posted: 26 Jan 2022 at 7:16pm
Originally posted by PaulB PaulB wrote:

The engines that I've had copper head gaskets on, I've used O-rings to seal the water and oil passages and fire rings on top of the sleeves. Nothing on the copper gasket itself. 


  Yep, fire rings on sleeves, since there are no grooves for o-rings, dont they get smashed down to nothing?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote bsallis180 Quote  Post ReplyReply Direct Link To This Post Posted: 27 Jan 2022 at 4:28am
I have used coper coat at the most and that’s it. Chances of it seeping a liquid are high
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Post Options Post Options   Thanks (0) Thanks(0)   Quote PaulB Quote  Post ReplyReply Direct Link To This Post Posted: 27 Jan 2022 at 6:11am
The holes in my copper gaskets are large enough that the O-ring set inside of the gasket and when using a .090 gasket with .125 O-rings they squash down to .090
If it was fun to pull in LOW gear, I could have a John Deere.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 27 Jan 2022 at 6:35am
Hylomar rubbed all over the copper gasket on both sides is about all you can do.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote NEVER green Quote  Post ReplyReply Direct Link To This Post Posted: 27 Jan 2022 at 8:38am
Originally posted by PaulB PaulB wrote:

The holes in my copper gaskets are large enough that the O-ring set inside of the gasket and when using a .090 gasket with .125 O-rings they squash down to .090

  Yep duh, I guess I had it in my head about the pushrod holes, close to the edge of block, hate leaks.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote NEVER green Quote  Post ReplyReply Direct Link To This Post Posted: 27 Jan 2022 at 8:39am
Originally posted by bsallis180 bsallis180 wrote:

I have used coper coat at the most and that’s it. Chances of it seeping a liquid are high

   Sigh, hate leaks.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote d17brown Quote  Post ReplyReply Direct Link To This Post Posted: 02 Feb 2022 at 7:23pm
3m Black urethane winsheild sealer
phil
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Post Options Post Options   Thanks (0) Thanks(0)   Quote NEVER green Quote  Post ReplyReply Direct Link To This Post Posted: 03 Feb 2022 at 8:59am
Originally posted by d17brown d17brown wrote:

3m Black urethane winsheild sealer

   Have you used this, if so do you have to pry head off because its good and sticky???
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Robacpuller Quote  Post ReplyReply Direct Link To This Post Posted: 05 Feb 2022 at 7:39pm
Defiantlyput o ring on sleave, I make my sleaves with o-ring.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Robacpuller Quote  Post ReplyReply Direct Link To This Post Posted: 05 Feb 2022 at 7:40pm
I TURN o ring right on top. .015
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Post Options Post Options   Thanks (0) Thanks(0)   Quote OldAC Quote  Post ReplyReply Direct Link To This Post Posted: 10 Feb 2022 at 8:02am
I've always done the old trick of aluminum paint on headgaskets. I honestly think it prevents leakage better then copper coat - taken apart many things with copper coat that weeped - clean it up and use aluminum engine paint on the used gasket, put it back together and no issues.
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