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HELP caliper->hub bolts ridiculously tight

Discussion in 'VN - VP Holden Commodore (1988 - 1993)' started by pow3rslave, Mar 25, 2009.

  1. pow3rslave

    pow3rslave DoNothing Member

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    all 4 wheels need new banjo bolts, so while i'm doing brake works i thought i'd take the front calipers off to respray them.
    i've only taken the rear ones off before. but when i got new front discs and pads they must have done them up with a rattle gun or something cause they're stupidly tight. for a second i thought it might be reverse thread, but i didn't remember the rears being reverse threaded

    tried a bar on the end of my socket wrench, hitting the spanner with a hammer, nothings shifting it.
     
  2. leigh 7005

    leigh 7005 New Member

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    got any penatrine or wd40 give that ago then try they are some tight suckers
     
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  3. ScoHar

    ScoHar Jizz in my pants

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    take that whole caliper mounting piece off and put it in a vice give that a go.
     
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  4. pow3rslave

    pow3rslave DoNothing Member

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    tried wd40, still wouldn't budge

    you mean like disconnect the tie rods etc? if i had a vice i'd maybe give it a shot but unfortunately not.

    might take it back to the place that put on the discs and pads and tell them they rattle gunned it too tight.

    i know it's a safety thing but i didn't think the torque necessary on them was more than a person could do manually
     
  5. Not_An_Abba_Fan

    Not_An_Abba_Fan Exhaust Guru

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    I've never had them that tight that they won't undo with a bit of help. The ratchet or breaker bar you are using isn't against anything is it?

    Let it hang down and use your foot to put pressure on it.
     
  6. centy

    centy Member

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    you mean the 3/4 dolts on the back of the caliper bracket?
    Those suckers are suposed to be tight, long bar and foot is the choice.
    Don't worry they are grade 10 and super strong.

    Why do you need 4 banjo bolts? What have you done to stuff all four of them?
     
  7. pow3rslave

    pow3rslave DoNothing Member

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    when put in new rears i noticed one was warped by being too overtightened. the hole through the side was less and O than it was an O, then when i put the bolts in, one snapped. i had another on hand so i was lucky. but i got a new set and been mening to do em for a while. figured while it's being done i can paint em properly too. right now i've got shiny red rears and crappy navy fronts with rusted hubs.
     
  8. azkwazere

    azkwazere Ahhh Yes, Ahhh Yes....

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    they actually have a very low torque rating, rattle gun is just stupid if true.

    All i can suggest is put a breaker bar on and "rattle" the **** out of it to get it off.

    There has been no bolt on the car that i haven't been able to get off with blunt force and breaker bars.

    Try to snap the thread lock, ie, immitate a rattle gun with a lot of force in short bursts.

    aZk.
     
  9. Tom_1569

    Tom_1569 Ecotech Power

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    Agreed, heres the VT specs from the manual:
    Front brake caliper anchor bolt 80 - 90 Nm, plus
    40° - 50O turn angle
    Rear brake caliper anchor plate bolt 70 - 100

    In perspective a wheelnut should be 110-140nm.

    I just use a small breaker ball and my foot. If its really tight get a large breaker bar and a bigger foot lol.
     
  10. azkwazere

    azkwazere Ahhh Yes, Ahhh Yes....

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    A bash mallet or panel beaters dolly on a breaker bar should be sufficient.

    aZk.
     
  11. pow3rslave

    pow3rslave DoNothing Member

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    goddamn, just got it off, i had to buy a 380mm breaker bar (the tube wrench on the end of the socket didn't do it) then put the tube wrench on the end of that, even with that it was hard going.
     
  12. Not_An_Abba_Fan

    Not_An_Abba_Fan Exhaust Guru

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    Want to buy a weight set?
     
  13. pow3rslave

    pow3rslave DoNothing Member

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    already got one thanks. as i said before i think they used a rattle gun to do them up
     
  14. Not_An_Abba_Fan

    Not_An_Abba_Fan Exhaust Guru

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    Sometimes people do bolts up to that last setting on the torque wrench....."ridiculously ****ing tight"
     
  15. ScoHar

    ScoHar Jizz in my pants

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    yea most bolts are done up F.T
     

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