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head gasket sealant

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  • head gasket sealant

    Popped the head gasket on my OHV6, and am close to ready to install the new one. There's a bit of a nick in the block deck where the hole occurred between #3 and #4, but since it was low on compression anyway, I'm going to button her up so I can drive her until I get theBlack Bart Special (185 OHV 6) built.

    I haven't done a head gasket in 20 years or so, and have forgotten...What's the best sealant to use ( Or not use) with a head gasket?

    Ron

    Ron Dame
    '63 Champ

  • #2
    Permatex copper coat spray.

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    64 Daytona HT
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    63 R2 4 speed GT Black
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    63 GT Hawk
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    JDP Maryland

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    • #3
      [quote]Originally posted by JDP

      Permatex copper coat spray.

      I still have some permatex copper coat in a brush-on can that's not all dried up. That's what I was thinking,and you've copnfirmed it as OK..sort-of. Brush it on the gasket. So do I let it set up, or put it on "wet"?



      Ron Dame
      '63 Champ
      Ron Dame
      '63 Champ

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      • #4
        Let it "tack up".

        Studebaker On The Net http://stude.com
        Studebaker News Group
        http://groups.google.com/group/alt.autos.studebaker
        64 Daytona HT
        64 R2 4 speed Challenger
        63 R2 4 speed GT Black
        63 R2 4 speed GT White
        63 GT Hawk
        63 Avanti
        62 Daytona HT
        53 Coupe


        JDP Maryland

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        • #5
          Permatex copper coat works great!

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          • #6
            Ron, I've known guys who've used JB Weld on head decks with minor dings and had good results.

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            • #7

              I still have some permatex copper coat in a brush-on can that's not all dried up. That's what I was thinking,and you've copnfirmed it as OK..sort-of. Brush it on the gasket. So do I let it set up, or put it on "wet"?

              Ron Dame
              '63 Champ


              RON: OK to use old Copper-Coat, but be sure you mix it up thoroughly! The ball rolling around isn't sufficient if you haven't used it for awhile. Take out the little dauber and mix it up with a screwdriver. BP
              We've got to quit saying, "How stupid can you be?" Too many people are taking it as a challenge.

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              • #8
                Well, just to be different <G>, I use KW CopperCoat, basically the same thing as Permatex.

                (Back in the 'old days' [the 'early '70s, I'm not THAT old<G>], we used aluminum spray paint, because it was cheaper. That was back when aluminum spray paint actually had aluminum in it. Nowdays, don't do this, the aluminum paint is just aluminum color.)

                Do like JP said....let it tack up some before installing. I usually spray several thin coats on both sides of the gasket, let it tack up, and then install/torque.

                Paul

                Visit The Studebaker Skytop Registry website at: http://hometown.aol.com/r1skytop/myhomepage/index.html
                Paul
                Winston-Salem, NC
                Visit The Studebaker Skytop Registry website at: www.studebakerskytop.com

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                • #9
                  There's a ball in there? It sure is stuck good!

                  All is back together, and she;s running as good as she ever could..given that the *best* cylinder has 95 psi compression!


                  quote:Originally posted by BobPalma


                  I still have some permatex copper coat in a brush-on can that's not all dried up. That's what I was thinking,and you've copnfirmed it as OK..sort-of. Brush it on the gasket. So do I let it set up, or put it on "wet"?

                  Ron Dame
                  '63 Champ


                  RON: OK to use old Copper-Coat, but be sure you mix it up thoroughly! The ball rolling around isn't sufficient if you haven't used it for awhile. Take out the little dauber and mix it up with a screwdriver. BP
                  Ron Dame
                  '63 Champ
                  Ron Dame
                  '63 Champ

                  Comment


                  • #10
                    As usual I disagree, we tried that coppercoat stuff years ago when we
                    built my brothers engine, & blew two headgaskets one after the other.
                    Prior to that we had used an old engine builder trick of smearing some
                    axle grease on the block, and then on the top of the gasket. This also
                    makes cleanup MUCH easier when you DO have to take the head off again.
                    Apparently the theory is that the grease will ooze into the combustion
                    chambers and then once the engine fires, it creates a carbon ring at
                    the gasket. The coppercoat stuff tends to be difficult to get an even
                    coat and can cause leak paths. Never had an engine blow a head gasket
                    with the grease trick, and my Hawks engine was and average of 182 psi
                    on a cold compression test (about 9.3 compression). Redid my brothers
                    engine with the grease, & that was over 10 years ago including a trip
                    across country towing a trailer with 3:73 gears.

                    Tom

                    1963 Studebaker Avanti, 102,000, custom made brake brackets to mount 1998 Mustang GT 4 wheel disc brakes (soon to get 13" Cobra front brakes, 2003 Mustang Cobra 17" wheels, GM altenator, will be getting : 97 Camaro Z28 tan leather seats, 97 Camaro Z28 T-56 6-speed trans, Ported 'R3' style Avanti heads with stainless full flow valves, 'R3' 276 duration cam w/chrysler solid lifters, shortened push rods, aluminum cam gear, Edelbrock AFB Carb, GM HEI distributor, 8.8mm plug wires, waiting in the garage.
                    '63 Avanti R1, '03 Mustang Cobra 13" front disc/98 GT rear brakes, 03 Cobra 17" wheels, GM alt, 97 Z28 leather seats, TKO 5-spd, Ported heads w/SST full flow valves.
                    Check out my disc brake adapters to install 1994-2004 Mustang disc brakes on your Studebaker!!
                    http://forum.studebakerdriversclub.c...bracket-update
                    I have also written many TECH how to articles, do a search for my Forum name to find them

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