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HELP removing stubborn heads???

Discussion in 'The Hokey Ass Message Board' started by oldskool55, Feb 19, 2006.

  1. oldskool55
    Joined: Apr 10, 2005
    Posts: 712

    oldskool55
    Member
    from socal

    i gotta change the head gasket on my buick problem is i cant get the head off. ive tried just about everything i can think of. so i was wondering if you guys had any tips or tricks or ideas? thanks in advance.


    p.s. every bolt is removed from the head.... im possitive:D
     
  2. DrJ
    Joined: Mar 3, 2001
    Posts: 9,418

    DrJ
    Member

    Compressed air in a spark plug hole.

    Only use as much pressure as you need though, or you could catapult the head in your face.
     
  3. flamedolds
    Joined: Feb 19, 2005
    Posts: 293

    flamedolds
    Member

    Put a head bolt or 2 in a few threads to hold 'er from flyin up to high.
     
  4. oldskool55
    Joined: Apr 10, 2005
    Posts: 712

    oldskool55
    Member
    from socal

    what kind of fittng would i use? i cant imagine this head flying but i guess compressed air can do alot... thanks guy


    ps. its a 455
     

  5. DrJ
    Joined: Mar 3, 2001
    Posts: 9,418

    DrJ
    Member

    If you use 80 psi, and there's about 12-13 sq inches of surface area, thats about half a ton of pressure.
    Do it on a cylinder with the piston already at BDC or it will get there anyway.
    The suggested safety bolts is a good idea...
    I have an air nozzle with a rubber air tip, that's big enough for peanut plugs if the hole is bigger break the ceramic out of a spark plug and screw it in.
    Or use the adapter that's used to pressurize cylinders when doing head-on valve seals
     
  6. flamedolds
    Joined: Feb 19, 2005
    Posts: 293

    flamedolds
    Member

    DO you have a compression test kit? If so find the right adapter for your plug hole and remove the schrader valve from the end of the hose. Use the regulator on your compressor to bring the pressure up slow or if its too hard to reach I use a pair of needle nose visegrips as a "regulator" when needed. Just put em on fairly tight and use the adjuster to allow more pressure through.
    What else have you tried to get 'em off so far?
     
  7. oldskool55
    Joined: Apr 10, 2005
    Posts: 712

    oldskool55
    Member
    from socal

    ive tried tapping it with a hammer. yanking on it till my back hurt. stacking blocks in the valley area and prying on the bottom of the head with a 3ft pipe.... among other things... oh yeah i tried cussing and yelling too:D
     
  8. Polara
    Joined: Jan 22, 2006
    Posts: 85

    Polara
    Member
    from Indy

    The engine is a big air compressor, could you put a sparkplug or two in and a few safety bolts to keep from loosing it and either turn it over with a wrench or the starter? Just a thought. And if this is a dumb idea, please let me know why so I don't do it again.
     
  9. oldskool55
    Joined: Apr 10, 2005
    Posts: 712

    oldskool55
    Member
    from socal

    tried it except all the plugs were still in so that might make a difference?
     
  10. Not to be an A but,I don't remember for sure,but aren't the rocker shafts held down by head bolts on buicks? If you have these off already,never mind.
    I've done stuff like that,so I thought I'd throw it out there.

    Doc
     
  11. oldskool55
    Joined: Apr 10, 2005
    Posts: 712

    oldskool55
    Member
    from socal

    i dont think they were but theyre off any way
     
  12. oldskool55
    Joined: Apr 10, 2005
    Posts: 712

    oldskool55
    Member
    from socal

  13. Bruce Lancaster
    Joined: Oct 9, 2001
    Posts: 21,682

    Bruce Lancaster
    Member Emeritus

    Screw "positive". I smell another bolt or two hiding in there...
    On an engine that turns (this is not an immobile lump of rust straight from the scrap pile, right??) they just should not be that tight with all the bolts out.
    Someone here knows exactly how many fasteners there are in a Buick and where they live. Account for every damn one of a known number before you apply any more prying pressure!
    Chevy people, for instance, are often done in by crud-coverd bolts behind the exhaust manifolds or two bolts under the valve cover that live in sludge-filled pits--I think you are up against something like that, and if you're not careful your next post is gonna be a want ad...
     
  14. oldskool55
    Joined: Apr 10, 2005
    Posts: 712

    oldskool55
    Member
    from socal

    it ran and drove 24 hours before i took it apart. im possitive all the bolts are out i quadruple checked i even read the manual. everythings been fighing me it took mr 20 minuts to break the intake loose. i broke 3 craftsman sockets and a craftsman rachet getting the head bolts out... believe you me it was a fun day
     
  15. Prop Strike
    Joined: Feb 18, 2006
    Posts: 651

    Prop Strike
    Member

    buick 455 has 10 bolts per head. Good luck.
     
  16. enjenjo
    Joined: Mar 2, 2001
    Posts: 2,531

    enjenjo
    Member
    from swanton oh

    I had a buddy that was "sure" he had all the head bolts out. He got pissed, and started on the head with a sledge hammer. About half way through, he found two more head bolts, but by that time he had ruined the block too.
     
  17. oldskool55
    Joined: Apr 10, 2005
    Posts: 712

    oldskool55
    Member
    from socal

    today i went over and just pulled it off:confused:
     
  18. Polara
    Joined: Jan 22, 2006
    Posts: 85

    Polara
    Member
    from Indy

    Are you sure you weren't pushing before? I do that all the time to doors that aren't clearly labeled.

    Glad you finally got it off.
     
  19. repoman
    Joined: Jan 2, 2005
    Posts: 1,276

    repoman
    Member

    LOL
     

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