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New Head Gasket or know.

Discussion in 'Mechanic and Repair' started by Shady Brook, Jan 23, 2002.

  1. Shady Brook

    Shady Brook LawnSite Bronze Member
    from Indiana
    Messages: 1,517

    I pulled the head on my Kaw 12.5, I want to know if I NEED, to replace the gasket. I know that anytime you pull the head you are supposed to replace the gasket. My question is if I do not see any leaks or anything, do I need to replace the gasket. Not that I would be able to see a leak either. Just currious, I know it is not that big of deal to replace, just interested.

  2. Fish

    Fish LawnSite Member
    Messages: 139

    Purists insist on replacing them, but realistically I reuse them if
    they are intact.
  3. E-man

    E-man LawnSite Member
    from PA
    Messages: 136

    I always replace gaskets on anything I take apart. I just feel better doing it . I dont no what is right or what is wrong in this situation but that is what I do.

    I guess Im a purist:)
  4. Robert Doubrava

    Robert Doubrava LawnSite Senior Member
    Messages: 342

    I kinda agree with Fish. If it looks OK, then I don't replace it. But what do I know! I could be wrong, and the engine could blow the head gasket!!:alien:
  5. Jason Pallas

    Jason Pallas LawnSite Bronze Member
    Messages: 1,335

    I've broken down thousands of engines and only replace the gaskets (head or otherwise) if there's a visible problem or symptom that is directly related. If you got the gasket or can get it easily enough, replace it. Otherwise, if it looks good don't sweat it. Remember to tighten the head bolts back down in the right pattern though. Good luck.
  6. Shady Brook

    Shady Brook LawnSite Bronze Member
    from Indiana
    Messages: 1,517

    You guys are making me feel much more comfortable.

    Jason, what kind of life did you see with those 12.5 Kaw's? Mine is running very strong with almost 1300 hours. The cylinder looked good, I hope she lasts another 1300.

    Thanks fellas
  7. Planter

    Planter LawnSite Member
    from Utah
    Messages: 214

    While I haven't pulled hundreds of heads on small engines, I have pulled a few. If I have a gasket (planned ahead, which rarely happens) I change them. If not and the problem is not gasket related and I didn't damage it removing the head, I just re-use it. No problems so far.;)
  8. big james

    big james Banned
    from texas
    Messages: 152


    CPLLTT LawnSite Member
    from Oregon
    Messages: 17

    To do it right, you should replace them. Once a head gasket gets torqued down it compresses, and it is likely not to reseal again. But, in a pinch, you can probably get away with reusing it.
  10. Robert Doubrava

    Robert Doubrava LawnSite Senior Member
    Messages: 342

    To put it this way, it's better to be safe than sorry!:) :)

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