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NEVER green 
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Joined: 28 Feb 2013
Location: MN.
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 Topic: Copper head gasket sealer
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.
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2-8050 1-7080 6080 D-19 modelE & A 7040 R50
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PaulB
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Joined: 12 Sep 2009
Location: Rocky Ridge Md
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Posted: 26 Jan 2022 at 6:27pm |
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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.
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If it was fun to pull in LOW gear, I could have a John Deere.
Real pullers don't have speed limits.
If you can't make it GO... make it SHINY
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NEVER green
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Posted: 26 Jan 2022 at 7:16pm |
 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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2-8050 1-7080 6080 D-19 modelE & A 7040 R50
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bsallis180
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Joined: 29 Jul 2013
Location: Pennsylvania
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Posted: 27 Jan 2022 at 4:28am |
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I have used coper coat at the most and that’s it. Chances of it seeping a liquid are high
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PaulB
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Location: Rocky Ridge Md
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Posted: 27 Jan 2022 at 6:11am |
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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
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If it was fun to pull in LOW gear, I could have a John Deere.
Real pullers don't have speed limits.
If you can't make it GO... make it SHINY
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DrAllis
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Posted: 27 Jan 2022 at 6:35am |
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Hylomar rubbed all over the copper gasket on both sides is about all you can do.
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NEVER green
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Posted: 27 Jan 2022 at 8:38am |
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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2-8050 1-7080 6080 D-19 modelE & A 7040 R50
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NEVER green
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Posted: 27 Jan 2022 at 8:39am |
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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2-8050 1-7080 6080 D-19 modelE & A 7040 R50
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d17brown
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Location: farley iowa
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Posted: 02 Feb 2022 at 7:23pm |
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3m Black urethane winsheild sealer
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phil
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NEVER green
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Posted: 03 Feb 2022 at 8:59am |
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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2-8050 1-7080 6080 D-19 modelE & A 7040 R50
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Robacpuller
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Joined: 07 Apr 2016
Location: Wisconsin
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Posted: 05 Feb 2022 at 7:39pm |
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Robacpuller
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Location: Wisconsin
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Posted: 05 Feb 2022 at 7:40pm |
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I TURN o ring right on top. .015
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OldAC
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Joined: 01 Feb 2018
Location: Rural Michigan
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Posted: 10 Feb 2022 at 8:02am |
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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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