broken bleed nipple

[discomac]

i need to bleed my discos brakes after replacing the front disks and pipes and pads all round,but when i tried to un do the bleed nipples on the back calipers the nut part fell apart,any advice on un doing them? i dont suppose u can bleed the brakes without them could you?any advice would be great.

[hobbit]

Two things you can do, remove the calipre and try to drill out the broken nipple, if that fails or you domt fancy trying, its a replacement calipre, either second hand or new, be carefu when trying to undo the pipe, give it a clean down with a wire nrush and spray of easing oil, and slacken off carefully, it may have the nut stuck onto the pipe and tear it out

[winchman]

Dont laugh but you can get left handed drill bits, the advantage being that as you drill the bolt its trying to unscrew it as well and often come out before you drill all the way through it.
http://toolprice.com/c=855r9LP8ezRBzlbE5qhIPSx0r/category/screwextractors.lefthanddrillbits/

I would use this, works 99% of the time
http://www.ridgid.com/Tools/Extractor-Sets

[Jas278]

dont suppose u can bleed the brakes without them could you?any advice would be great.

Slacken the flxi pipe or brake pipe off and blead through that.....

[discomac]

thanks for the advice guys,i will try again tommorrow,and will let you no,thanks again.

[electricbluebadger]

get some stud extractors.. about a fiver a set, effectively reverse threaded drill bits with a square top you can get a spanner on. wind into the hole in the nipple itll get it out..they taper so as you screw in presseure increases

Cheers Steve

[Tyke]

Get it sorted . . . . it's safety critical . . . . . 'extractors' might do the job.

A 'bodge' might cure it in the short term but to be honest the brakes are  probably the most important system on the truck . . . . . for both for your own and others safety . . . . on or off road.

[discomac]

hi guys,had another go at those bleed nipples,they wont budge,so i bled the brakes off via the pipe goin into the caliper,theres no air,but when i stand on the brake peddle it slowly creeps down,any ideas guys?

[hairyasswelder]

Has it got 3 bleed nipples on the front? If so bleed the top/middle one last.

Oh, stud extractors have a square top for a tap wrench  

Steve

[discomac]

ye its got three,they are all fine,its the back calipers that are the problem,i take it when the brake peddle creeps down under pressure it means there is air in the system?cos i cant see any leaks.

[muck_truck]

can you not get hold of the bleed nipple with a pair of mole grips and get it out ?  then just replace the bleed nipple.  Had to do this on mine altho couldnt get hold of it properly so had to take the caliper off first  :roll:

[discomac]

tried that mate,even tried an extration tool,nowt will shift it,been told i can bleed it via pipe goin into caliper,done that but when i stand on the brake pedal it slowly goes down,i take it that means theres still air in the system

[muck_truck]

may be worth taking tha caliper off and putting it in a vice if not done already ?

i coudlnt get mine out when it was on the axle.  Put it in vice on the bench at a nice height it will come out with 50% less effort.  but if you have tired to drill it then mole grip method wont work  :)

dont think bleeding it from the pipe going int the caliper would work as there could still be air inside the caliper.

[discomac]

thats what i was afraid of,ive had it off and tried again,snapped the extraction tool off inside now,reckon its about dead,what do u reckon

[discomac]

well,i reckon i might have saved this caliper with the help of a mate from riverside all terrain,he told me above the bleed nipple theres a nut u can bleed from,and after loads of swearing at it i got the nut out a put a bleed nipple in,im having a bash at the other rear caliper now