Front brake hose removal

Discussion in 'General Discussion' started by Crispy, Jan 10, 2020.

  1. So I’m going to strip down the nearside front caliper and fit new seals,while doing this I’ll replace the flexi hose too as I did on the other side a short time ago.when I removed the hose before I tried to undo the wrong end first and snapped the brake pipe to the caliper,does any know which end should be unscrewed first so as to avoid another broken brake pipe? I think it’s the top end first where the sliding clip is.thank you people


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  2. Betty the Bay

    Betty the Bay Supporter

    Did mine recently, but can't recall any issues...
    Cut the hose, then any twisting can't damage any fixed parts.
     
    Crispy likes this.
  3. Thanks,I suppose if you cut it and remove it,the fixed end will then be evident


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  4. Soggz

    Soggz An inquisitive supporter

    Clamp the hose, take the Caliper off, slaken the hose, then it can be undone by turning the Caliper. :thumbsup:
     
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  5. davidoft

    davidoft Sponsor

    Clamp the hose
    cut it on the caliper side of the clamp
    pull the caliper off
    undo the hose from the Caliper
    Fit hose to caliper
    Fit caliper to van
    Hold the metal brake pipe union (11m), undo the hose , as soon as the hose is off start screwing the union inti the new hose, if you leave the bleed nipple open on the caliper this will bleed it too, just wait for the air bubbles to stop and tighten the nipple, push pedal a few times, open nipple to check for air, if none all good otherwise same again
     
  6. Very detailed instructions,love that
    Thank you mr davidoft sir


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  7. Thanks soggz


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  8. The brake hose should go to a short metal link pipe that go's to the caliper so shouldn't need to remove caliper.
    The pipe end must have been seized to the metal pipe when you did the other side.
    Just change the short pipe aswell if it's seized,
    ;)
     
    Last edited: Jan 11, 2020
    snotty and Crispy like this.
  9. I fitted a new brake pipe to the caliper as it snapped on the other side.Ill be taking the caliper off on this side too anyway,to replace the seals. I thought one end of the hose had to be undone before the other to remove it.


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  10. Shouldn't matter what end you undue first but if you are changing the seals then clamp the hose
    and remove the caliper end first to see if its seized and needs a new metal pipe .
    Once you have refitted the caliper with its new seals change the hose so there is less fluid loss.
     
    Crispy likes this.
  11. Not unknown for the short metal pipes to turn into twirly pasta things if the unions are rusted. Be prepared to replace them.

    Also, avoid drink and loose women.
     
    Merlin Cat and Crispy like this.
  12. Or if you don’t know what your doing safely get a garage to do it
     
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  13. Soggz

    Soggz An inquisitive supporter

    If you Dont want to cut the hose, I meant.
     
    Crispy likes this.
  14. [​IMG]
    Finally got round to starting the caliper


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  15. Zed

    Zed Gradually getting grumpier

    A convenient way to remove the pistons and replace the seals is to do them one at a time with all the brake line still attached. Clamp one piston, thin piece of wood to stop it chipping when it pops past it's seal, pump out with the brakes. Go steady. Deal with that one, put it back and repeat for the other piston. Messy, but no grease to clean out or need to provide compressed air. Then replace the brake lines.
     
    Crispy likes this.
  16. Doh! I’ve already taken it off,great tip though.one piston is out ,the second is being stubborn


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  17. Zed

    Zed Gradually getting grumpier

    How are you getting them out?
     
  18. Tapping around the lip with a piece of steel angle and a hammer,slowly slowly and penetrating fluid


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  19. [​IMG]


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  20. Zed

    Zed Gradually getting grumpier

    That's a good way to damage the piston, snapping pieces off the lip which it brittle. You must have the patience of a saint.
     

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