Nipple broken off caliper,what are my options?
Discussion
I've drilled out the nipple,which i've done before to great effect,but this time things didnt' go right.Drilled out nipple ok,but must have just nicked original threads,new nipple was slack!Tried drilling out then to m10,for whatever reason my tap and die piece must have been worn,again nipple was a loose fit.So now i have a perfect threaded hole using an 'unused' bit from my tap and die set,an m12 1.75 pitch hole,and yes,you've guessed it,you can't get a nipple this size lol.I really want to get a bleed nipple back in somehow,i'm temporarily going to fit a short m12 1.75 pitch bolt and a copper washer.What are my options?Caliper has two nipples,just one's buggered.
stevieturbo said:
What's it made from ?
Weld it up and have it drilled/machined out by someone less likely to screw it up ? lol
Or buy another caliper, and learn the lesson not to f
k about.
It's an alloy caliper I'm 'fWeld it up and have it drilled/machined out by someone less likely to screw it up ? lol
Or buy another caliper, and learn the lesson not to f
k about.king about' with, a brembo.Drilled a few nipples out before no problem but mostly with steel calipers, this is first time with an alloy one.As I said I now have a perfect tapped hole with no damage at all to the base/seat where the nipple settles on.I, ve seen m12 nipples on Ebay and the likes but they are a '1' pitch thread, it's a 1.75 I need.Evoluzione said:
If a tap is worn it will make tighter threaded holes, not slacker ones, I think you may need a thread gauge and a visit to Specsavers. 
Try Wilwood for big nipples although they will be Imperial, they make a large threaded (internally and externally) insert which has a separate nipple in the middle.
Failing that you will now have to have a special fitting made like the ones Wilwood use except metric.
Willwood?Quick search on Google,is that the company in the U.S?Trying to find a stockist in UK.Had a quick look at your profile,i have a Coupe 20v turbo!Small world. Try Wilwood for big nipples although they will be Imperial, they make a large threaded (internally and externally) insert which has a separate nipple in the middle.
Failing that you will now have to have a special fitting made like the ones Wilwood use except metric.
TheRealFingers99 said:
Being a very coarse thread I'd think it couldn't apply enough torque to seal. Also, that if the OP had the equipment to do that, he'd not have messed up the thread in the first place. Such is life......
As i said i've drilled out many things and retapped them no problem,for whatever reason first tap i used was just slack as fk(never had that happen before).I've just inserted the m12 bolt i have and copper washer and it's holding pressure perfectly,no leaks.I'll make a custom bleed nipple for it when i get round to itEvoluzione said:
If a tap is worn it will make tighter threaded holes, not slacker ones, I think you may need a thread gauge and a visit to Specsavers.
Vist to specsavers went well,in fact they told me i had 20/20 vision as unlike everyone else i didn't go into the fishmongers next door for my appointment.Gassing Station | Suspension, Brakes & Tyres | Top of Page | What's New | My Stuff