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  1. #1
    Join Date
    Jan 2005
    Location
    college point N.Y.
    Posts
    686

    what to use on mating surface of crank cover

    what to use on mating surface of crankcase cover and cylinder block. over the cork strip ??????? my manual calls for permatex 2c-12 . i found in the past that what the manual calls for sometimes dont exist or they changed the number over the years . so what should i use ????????????? thanks

  2. #2
    I use Gel Seal.

    Ló fasz racing
    Joe Horvath



  3. Quote Originally Posted by jphii
    I use Gel Seal.

    Ditto. Locktite does make a similar product, don't remember the #, but I bought some the other day and can get the # tommorw if you need it. I usually get it at the omc dealer I use but didn't want to go by there. locktite probably makes it for omc... don't over do it on that stuff, when you squeeze the block togther, a little goes a long way. a little bead, smaller than a pencil lead is plenty.

  4. #4
    Join Date
    Jan 2005
    Location
    college point N.Y.
    Posts
    686
    if you know the number and it is not to much trouble i could use the number of the lock tight . thanks for the help

  5. Quote Originally Posted by camaro7081
    if you know the number and it is not to much trouble i could use the number of the lock tight . thanks for the help
    give me a call tomorow. john

    281.455.5108

  6. #6
    Join Date
    Apr 2003
    Location
    Johnson City TN
    Posts
    328

    Locktite #518 Anerobic sealer

    Hope that helps
    Bryan

  7. #7
    Join Date
    Apr 2001
    Location
    Old River , Texas ( 35 mi East of Houston )
    Posts
    10,970
    I have used 518 Locktite Red Gel Seal for years with no issues .... With a zillion successfull rebuilds with 0 leaks until the other day ... My Merc dealer friends use the Merc. Brown gunk sealer and I also have that on hand too ???? Dunno but last week had an engine with a slight weep up high at the split cases right at the top case bolt port side BUT the motor ( before I got it to rebuild ) had a top bearing failure and smoked the top of the block SOOO bad it had to be converted to the new style crank and be machined. ( It vibrated SOOO bad that I was told it broke most the studs in the bottom of the block smoking the crank and upper block, SCARY ! ) .. The motor did NOT leak running on my stand for an hour during initial breakin nor would it leak after it was installed on customers down housing running an hour longer on the hose. Only seep occured when a load was put on it ! I ate the freight both ways and tore it down again and applyed the Merc. brown wonder goop and the jury is still out ! I'm guessing a cranked front half if this massive amount of this brown goop that I applyed to the whole split case area doesn't solve this issue. Without a load it will run forever with no issues at all , dry as a bone and as soon as any load is applied it has a slight weep....
    Jay @ JSRE

  8. #8
    Join Date
    Jan 2005
    Location
    college point N.Y.
    Posts
    686
    what is the number of the merc brown ****??????????????????, i bought a tube of 518 and it came with a primer i guess , ididnt read it yet .but it cost 30. bucks . how much is the brown stuff ????????????

  9. #9
    Join Date
    Apr 2001
    Location
    Old River , Texas ( 35 mi East of Houston )
    Posts
    10,970
    Quicksilver Perfect Seal P/N ( 92-34227-1 )

    Good luck !
    Jay @ JSRE

  10. #10
    Join Date
    Sep 2001
    Location
    Hermitage,TN
    Posts
    1,657
    Blog Entries
    1
    Quote Originally Posted by Jay Smith
    Quicksilver Perfect Seal P/N ( 92-34227-1 )
    All I've ever used, never had a problem. Whatever you use, use it sparingly and thin.
    Have you ever stopped to think............and forget to start again?

  11. #11
    Join Date
    Jan 2005
    Location
    college point N.Y.
    Posts
    686
    thanks for info guys and thanks s&f

  12. #12

    sealer

    Use permatex aviation form a gasket sealer, you can get it at any napa store, part #765-1210 , comes with brush in can ,so you can brush on both halfs, Jeff

  13. #13
    Join Date
    Nov 2001
    Location
    South Carolina
    Posts
    2,595
    Don't use Gel Seal on the mating surfaces. Gel Seal will actually shim the surfaces and as Jay saw can lead to bearing failure. I use only Perfect Seal on my motors.
    Never argue with an idiot. They drag you down to their level, then beat you with experience.

    3 X APBA Formula V Nat'l Champion
    APBA Formula V US-1
    It took me 29 years to become an overnight success.

  14. #14
    Join Date
    Apr 2001
    Location
    Old River , Texas ( 35 mi East of Houston )
    Posts
    10,970
    Jeff ,
    Guess we will have to agree to disagree on the gel seal subject ! And that only ONE product will work successfully. The bearing failure was before I touched the engine and it was put together with the perfect seal because I had to clean the crap up when it arrived at JSRE ! LOL........If you would ask five different mechanics what they used as a case sealer you would get at least 3 different answers and that was proven in this post..

    Gel seal ( 518 loctite )
    Mercury Goop
    Permatex aircraft sealer

    There are many products on the market that work and many have been successfull with each. I happen to have been using the 518 Locktite SUCCESSFULLY for 14 years others may like other things ...it's seem to be a matter of opinion... Like Ford and Chevy.......
    Jay @ JSRE

  15. #15
    Loctite 518 is the only way to go, perfect seal is a thing of the past.


    Lee

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