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Thread: Head bolts

  1. #1
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    Head bolts

    Its time to get the head off the holden hp 179.

    should i invest in an impact driver or will a breaker bar suffice?

    cheers,

    D
    1957 88 Petrol (Chumlee)
    1960 88 Petrol (Darwin)
    1975 88 Diesel (Mutley)

  2. #2
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    I believe the traditional way to remove a 179 head is to hang a keg on a rope pulley over a stout tree branch (count the sheaves to work out the mechanical advantage) , imbibe freely, then use a $5 K-Mart ratchet and a hammer to round off the bolts. Or just find a breaker bar.

  3. #3
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    You should only need a breaker bar 1/2" drive. If they had been torqued correctly on assembly then they were only pulled up to 75 ft/lbs, nothing major. Of course if they were assembled without thread sealant or anti-seize they may be well corroded in and a rattle gun may be needed.
    URSUSMAJOR

  4. #4
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    Thanks Gents - i’ll start off with a breaker bar and see how it goes.
    cheers,

    D
    1957 88 Petrol (Chumlee)
    1960 88 Petrol (Darwin)
    1975 88 Diesel (Mutley)

  5. #5
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    There was a product sold by GM a long while ago called GM head stud sealer. And the reason we sold it was for Holden 6 and Chev V8 head bolts.
    If you forget to seal the threads you will probably get a coolant leak.

    Ps use the GM stuff in a well ventilated area.

    Ian
    Bittern

  6. #6
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    Quote Originally Posted by bee utey View Post
    I believe the traditional way to remove a 179 head is to hang a keg on a rope pulley over a stout tree branch (count the sheaves to work out the mechanical advantage) , imbibe freely, then use a $5 K-Mart ratchet and a hammer to round off the bolts. Or just find a breaker bar.

  7. #7
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    Cant remember where this bit of pipe came from , a bike? - anyway, it did the trick.

    cheers,

    d
    Attached Images Attached Images
    1957 88 Petrol (Chumlee)
    1960 88 Petrol (Darwin)
    1975 88 Diesel (Mutley)

  8. #8
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    Is that a ratchet you are using the pipe extension on , if so you are lucky you didn't brake the ratchet.

  9. #9
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    Quote Originally Posted by 1950landy View Post
    Is that a ratchet you are using the pipe extension on , if so you are lucky you didn't brake the ratchet.
    It's OK, he didn't push his foot against it.

    Oh, you mean "break"?

    Anyway, it's an arthritis aid, prevents wrist strain on old fogies. I do it to one of my own ratchets, the one without a plastic handle. It's survived 10 years of occasional pipe use and it's still as smooth as a baby's ...

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