Stainless Steel Bolt broken off in carb need help to remove.

[NOS]

I wouldn't blame the lack of anti seize either. Your'e in sunny climes compared to over here (though we're having sun at the moment..!!!) and 99.9% of the time people don't use copperslip but those things don't snap. And the government salts our roads = weld those bolts in even more.

Don't use an Eazi out / easy out or whatever the local brand name is. It'll snap and then you can't drill or tap the thing as it's hardened steel. Easy outs should be banned.

Mole grips will be better than a vice. Or small stilsons. If you've got any part

[7981GS]

He has a $60,000.00 one of these in the garage, so go easy on him.

http://www.bhphotovideo.com/c/product/763142-REG/Vanguard_ESPOD_AM_204S_Espod_AM_204S_Aluminum_Monopod.html

Daniel

[hampshirehog]

Bloke in that shop is spinning you one. Nobody uses stainless in racing. You use stainless to stop things tarnishing and that's it. That's an M6 bolt - if that snapped before stripping the threads in the alloy of the carbs then those bolts are crap with a capital K - no question. Even Screwfix sell better M6 bolts than that and I can get 50 of that size for about £1. You're being done over.

I wouldn't blame the lack of anti seize either. Your'e in sunny climes compared to over here (though we're having sun at the moment..!!!) and 99.9% of the time people don't use copperslip but those things don't snap. And the government salts our roads = weld those bolts in even more.

Don't use an Eazi out / easy out or whatever the local brand name is. It'll snap and then you can't drill or tap the thing as it's hardened steel. Easy outs should be banned.

Mole grips will be better than a vice. Or small stilsons. If you've got any part of that bolt sticking out it's a cinch.

[rapidray]

Zeke, you are a machinist? Really? And......you didn't know what an EASY OUT is?!! Go get the easy out & use it. Let us know how THAT works out for you!

[Krunk_Kracker]

Interesting to see this drama across multiple threads, lol.

[TheCafeKid]

Easy out on stainless = fail.

Stainless is brittle, its not soft. Youre gonna end up breaking the easy out off in the hole you drill into the bolt, or make a mashery of whats left to grab already.

DO NOT put a torch to it. That thing had gas in it just yesterday. Plus unless youre carefull with the torch or break the whole carb down, YOU'RE likely to melt something inside.

Do you own a Dremmel? or a pair of Vice Grips? If ya do, cut a slot in the shank with the Dremmel, a deep one, to get good purchase on it with a flat head screw driver. If not, and you have Vice Grips, clamp those bastards down tight and turn it. You might have to use a bit of sack. But it cant possibly be THAT stuck. The threads in the alu will give out soon enough. Then you can tap it.....provided you know how to do that, and own a tap kit..

[Ranger]

He has a $60,000.00 one of these in the garage, so go easy on him.

http://www.bhphotovideo.com/c/product/763142-REG/Vanguard_ESPOD_AM_204S_Espod_AM_204S_Aluminum_Monopod.html

Daniel

LoL, leased or owned!?


And to think Ray was gonna help me with my bike and all it would cost me is a pack of newcastles I could drink too. Snapping a bolt would be pocket change compared to the cost of a shop, etc.

Considering there's a search feature with this same post a hundred times he had it comin.

[NOS]

Bloke in that shop is spinning you one. Nobody uses stainless in racing. You use stainless to stop things tarnishing and that's it. That's an M6 bolt - if that snapped before stripping the threads in the alloy of the carbs then those bolts are crap with a capital K - no question. Even Screwfix sell better M6 bolts than that and I can get 50 of that size for about £1. You're being done over.

I wouldn't blame the lack of anti seize either. Your'e in sunny climes compared to over here (though we're having sun at the moment..!!!) and 99.9% of the time people don't use copperslip but those things don't snap. And the government salts our roads = weld those bolts in even more.

Don't use an Eazi out / easy out or whatever the local brand name is. It'll snap and then you can't drill or tap the thing as it's hardened steel. Easy outs should be banned.

Mole grips will be better than a vice. Or small stilsons. If you've got any part of that bolt sticking out it's a cinch.

that size for about £1. You're being done over.

I wouldn't blame the lack of anti seize either. Your'e in sunny climes compared to over here (though we're having sun at the moment..!!!) and 99.9% of the time people don't use copperslip but those things don't snap. And the government salts our roads = weld those bolts in even more.

Don't use an Eazi out / easy out or whatever the local brand name is. It'll snap and then you can't drill or tap the thing as it's hardened steel. Easy outs should be banned.

Mole grips will be better than a vice. Or small stilsons. If you've got any part

[Greg B]

Allright, you're a machinist, so you should be able to get it. (And if you're careful, you won't even have to strip the rack)
Set up the carbs on a milling machine & center the spindle over the broken screw. If your eyes are good, you can get it within .005-.010 thou.
Start with a .125" carbide endmill, (I like to use a 4 fluter) and machine straight down through the body of the screw. DON'T cut too deep, you don't want to machine into the carb body if you can help it.
Switch to a drill chuck & step up by progressively larger drill sizes until you reach the minor diameter of the thread. (On a 6 x 1mm screw the minor is 5mm, .196 thou. Might be a few thou more or less, depending on the manufacturing tolerances of the screw.)
You should end up with a nice little stainless coil the you can pull out like a spring.
Clean up the threads with a tap, and you're done.
If you screw the pooch, at least you got the broken screw out. At that point, you can install a Helicoil and away you go.

[cowboyup3371]

Lovely, just lovely

[hampshirehog]

Anti seize, or lack of it, has got nothing to with the bolt snapping. Anti seize (we call it copperslip) has only one purpose - to prevent the stainless steel welding itself to the aluminium as moisture / air seeps down the threads over time. And we're usually talking weeks / months here for any of this to happen. I forget the chemistry but it's an electrolytic reaction that takes place and it's sloooow. If that bolt went in during the last month the lack of copperslip is completely irrelevant.

303 stainless has a tensile strength of about 90k psi. If those bolts were 303 then as sure as eggs is eggs you would have stripped the alloy - by a country mile. The threads in the alloy are fine so your bolts must be made out of Swiss cheese. Perfect for small stilsons to grab hold of.

[NOS]

Allright, you're a machinist, so you should be able to get it. (And if you're careful, you won't even have to strip the rack)
Set up the carbs on a milling machine & center the spindle over the broken screw. If your eyes are good, you can get it within .005-.010 thou.
Start with a .125" carbide endmill, (I like to use a 4 fluter) and machine straight down through the body of the screw. DON'T cut too deep, you don't want to machine into the carb body if you can help it.
Switch to a drill chuck & step up by progressively larger drill sizes until you reach the minor diameter of the thread. (On a 6 x 1mm screw the minor is 5mm, .196 thou. Might be a few thou more or less, depending on the manufacturing tolerances of the screw.)
You should end up with a nice little stainless coil the you can pull out like a spring.
Clean up the threads with a tap, and you're done.
If you screw the pooch, at least you got the broken screw out. At that point, you can install a Helicoil and away you go.

Switch to a drill chuck & step up by progressively larger drill sizes until you reach the minor diameter of the thread. (On a 6 x 1mm screw the minor is 5mm, .196 thou. Might be a few thou more or less, depending on the manufacturing tolerances of the screw.)
You should end up with a nice little stainless coil the you can pull out like a spring.
Clean up the threads with a tap, and you're done.
If you screw the pooch, at least you got the broken screw out

[cowboyup3371]

Do you have the other 7 bolts out yet and the bracket off the carbs? That picture you showed clearly indicates that once you do that, you can grab onto the bolt with a pair of vise grips and turn it out.

I'm wondering why it's taken you all day to get it out?

[Ranger]

Do you have the other 7 bolts out yet and the bracket off the carbs? That picture you showed clearly indicates that once you do that, you can grab onto the bolt with a pair of vise grips and turn it out.

I'm wondering why it's taken you all day to get it out?

That's why I mentioned yet an updated picture with it off.

[hampshirehog]

Interesting to see this drama across multiple threads, lol.

Sorry NOS, I've just realised where this other thread is. Are you mad? That bunch of herberts that you had come round your house on your birthday aren't going to turn you over. They're all as sound as a pound so you've just crapped on your own parsley. Takes all sorts I s'pose.....