8 replies to this topic

[Madmax]

now that got your attention didnt it

ive been setting up my metro 4 pot brakes and one of the nipples on the right hand side of the left caliper has sheered off, and no massive force was applied to it, i know they dont need to be put in with inch drive breaker bars

any ideas what i can do to remove the half of nipple thats stuck in the caliper?

am i going to need to ream out a new thread and replace it?

or is it.......new caliper

[Bluemini]

I had that prob with one of mine once. I took it to my engineers and they took it out for free for me. They said they heated it up and used an easy-out.

[Madmax]

cheers blue

i'll give it a try, should be able to do it myself

[dklawson]

If a shop can do it for a reasonable price... that is the best way to go. I screwed up a caliper very nicely myself trying to do this (regular cast iron job... not the nice one you have). Keep in mind that if you have to re-tap this yourself it has to be directly inline with the old seat or the new nipple won't seal.

Someone on this site posted a nice bandaid fix that I'll try next time if I have to salvage a caliper. After re-tapping the hole for the nipple, grind the point off the new bleed nipple, leaving it shorter and flat faced. Drop a small steel ball from a ball bearing into the bleed hole and follow it with the flat faced nipple. The ball will seal the hole even if it's drilled off center.

[Madmax]

thats a really good idea for a quick non-permanent fix dklawson

thanks

[dklawson]

I wish I could take credit for the fix, someone else on this forum posted the idea a few months back. Unfortunately for me the advice came after I'd installed a repair kit in my caliper. I don't know if you have this kit over there but it's a pipe bushing/plug with a bleed nipple in it. You tap out your caliper for this bushing/plug and install the repair kit complete with nipple. Sounds easy... but the thing deforms on installation requiring additional tinkering to seal. The ball bearing trick would have saved me a lot of work!

[noc231073]

an easier fix again !!
if u have a mig welder weld a couple of spots on top of the broken nipple building it out on till u can get a vice grips onto it being careful not to weld the nipple to the caliper
it works a treat as i did the exact same last week the heat of the welder helps with some wd 40
remember to turn the welder up as u need it to penatrate the nipple u will know when it right as the first couple of attempts the weld will probably break of but when it penatrated it will come right out

[Guess-Works.com]

I've still got to remove a nipple from my alloy calipers, if I can't sraw it out with and extractor, may go for that option...

[Woody]

I always put a nut over the broken stud/nipple and then weld the inside of the nut to the broken off end , the heat works well and you can use a spanner to ease it out , sometimes this needsto be done several times to get it all .