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108 Broken stud removal
- sk93
- Lifer
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108 Broken stud removal
Thinking about having a go at refurbing one of the three sets of 108's I currently own
However, I know for a fact one set has at least two broken studs (the bolts that hold the stars to the rim), and knowing my luck, I'm bound to break at least another 12...
so.. how does one go about removing the broken part of the stud?
I'm pretty sure there's naff all sticking out to grab hold of and twist.
Drill it out? easiout? something else?
Did a search, found people pm'ing each other the recommended way of removing them, but not sharing that knowledge publically.
someone care to share?
However, I know for a fact one set has at least two broken studs (the bolts that hold the stars to the rim), and knowing my luck, I'm bound to break at least another 12...
so.. how does one go about removing the broken part of the stud?
I'm pretty sure there's naff all sticking out to grab hold of and twist.
Drill it out? easiout? something else?
Did a search, found people pm'ing each other the recommended way of removing them, but not sharing that knowledge publically.
someone care to share?
- PerryGunn
- Lifer
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Re: 108 Broken stud removal
Drilling Titanium isn't easy - IIRC because titanium work-hardens you need to drill at very low speed and high pressure using something like a carbide/cobalt bit with lots of cutting fluid. Given that it's a small diameter bolt, I wouldn't like to try it freehand, do you have access to a drill press?sk93 wrote:Thinking about having a go at refurbing one of the three sets of 108's I currently own
However, I know for a fact one set has at least two broken studs (the bolts that hold the stars to the rim), and knowing my luck, I'm bound to break at least another 12...
so.. how does one go about removing the broken part of the stud?
I'm pretty sure there's naff all sticking out to grab hold of and twist.
Drill it out? easiout? something else?
Did a search, found people pm'ing each other the recommended way of removing them, but not sharing that knowledge publically.
someone care to share?
I'd try an easyout or other extraction tool first - but what do I know, I put my wheels on back to front
Alpina Roadster S #320
* Quaife ATB LSD * StrongStrut Braces * Turner RTAB Limiters * Gap-Tech RCH+ *
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* Quaife ATB LSD * StrongStrut Braces * Turner RTAB Limiters * Gap-Tech RCH+ *
* Intravee & KCA-420i * Mini 0806 * Cheetah C550 * Stubby *
- mr wilks
- Legend
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Re: 108 Broken stud removal
I found the easiest way to remove a stud once the centre star part is off is to grind 2 flat surfaces onto the protruding stud with a small angle grinder then take a very small spanner that fits & turn it out
Actually drilling a head off in order to remove the star can be done quite easily with the correct size drill bit ( a fraction bigger than the actual thread of the bolt )
My best advice from the off is to strike each bolt hard 2/3 times with a lump hammer & a long spline ( wear ear defenders) , also with the wheel flat down remove the bolts in a star like fashion so opposie side of wheel each time .
Lastly if you feel one won't move just leave it , come back to it at the end & majority of times it will loosen ,even if you leave for a day or so then keep trying
oh & DON't use a torgue wrench best to get a feel for what will & won't move
Actually drilling a head off in order to remove the star can be done quite easily with the correct size drill bit ( a fraction bigger than the actual thread of the bolt )
My best advice from the off is to strike each bolt hard 2/3 times with a lump hammer & a long spline ( wear ear defenders) , also with the wheel flat down remove the bolts in a star like fashion so opposie side of wheel each time .
Lastly if you feel one won't move just leave it , come back to it at the end & majority of times it will loosen ,even if you leave for a day or so then keep trying
oh & DON't use a torgue wrench best to get a feel for what will & won't move
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3 E89s
5 Si coupes
5 Si roadsters
997 C4
TTRS
F82 M4
MK7 Golf Gti
current Bmw 6 Gran Turismo
- srhutch
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Re: 108 Broken stud removal
mr wilks wrote: oh & DON't use a torgue wrench best to get a feel for what will & won't move
You shouldn't use a torque wrench to undo bolts.
- mr wilks
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Re: 108 Broken stud removal
Haha , i don't even have one , i just read many people asking for torque settings to tighten them & wouldn't want someone to try removing them with same setting as they are likely to round off a good fewsrhutch wrote:mr wilks wrote: oh & DON't use a torgue wrench best to get a feel for what will & won't move
You shouldn't use a torque wrench to undo bolts.
Even tightening i wouldn't advise following the numbers as they were set for new rims/new bolts which clearly a used set of 108s are not & especially so if the rims have had a blast,powdercoat oven bake
You should get a feel once they are tight then leave alone for a day or 2 , then go back & check them all as you can often get a little turn extra that way
3 ZMRs
3 E89s
5 Si coupes
5 Si roadsters
997 C4
TTRS
F82 M4
MK7 Golf Gti
current Bmw 6 Gran Turismo
3 E89s
5 Si coupes
5 Si roadsters
997 C4
TTRS
F82 M4
MK7 Golf Gti
current Bmw 6 Gran Turismo
- markplant
- Lifer
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Re: 108 Broken stud removal
Some torque Wrench's only turn one way
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- sk93
- Lifer
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Re: 108 Broken stud removal
this lady's not for turning!markplant wrote:Some torque Wrench's only turn one way
- Machine monkey
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Re: 108 Broken stud removal
Just seen this... You bring them to me my friend. And this will be another job I can do for you.
Drilling Ti is OK if you have the correct tools and cutting fluids. And a bit of knowledge to get the correct cutting speed. A pilla or bench drill will help. Guess what i have all of the above....
Drilling Ti is OK if you have the correct tools and cutting fluids. And a bit of knowledge to get the correct cutting speed. A pilla or bench drill will help. Guess what i have all of the above....
- sk93
- Lifer
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Re: 108 Broken stud removal
I'll bring em down with me then sir! (and some more beer tokens)Machine monkey wrote:Just seen this... You bring them to me my friend. And this will be another job I can do for you.
Drilling Ti is OK if you have the correct tools and cutting fluids. And a bit of knowledge to get the correct cutting speed. A pilla or bench drill will help. Guess what i have all of the above....
yay for monkeys!
- Machine monkey
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Re: 108 Broken stud removal
No need for beer tokens we can just swap skills and trades. I want your old tablet install....