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Old 10-14-2011, 02:41 PM   #1
that_stupid_kydd
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Default deformed bolt head

while trying to remove the bolt that keeps the pedal on my kicker arm i deformed the head something fierce,vice grips wouldn't work so i got out a cut off wheel and cut a slot in the top to use a screwdriver but that didn't work so i then shaved the bolt head into a square hoping i could then use a smaller size wrench on it and remove it but it's just rounding it more. i don't have easy outs but i could always go buy some if thats my last resort but i'd rather not have to spend more money then i have too. any help would be greatly appreciated
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Old 10-14-2011, 02:48 PM   #2
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Default Re: deformed bolt head

Try some PB Blaster and let it soak onto the threads for about an hour. Obviously it's stuck, so I'd attack the "stuck" factor first before damaging anymore of the end of the bolt.

Then maybe with another slot and a screwdriver and alight tap on the end of the screwdriver you can get it to loosen


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Old 10-14-2011, 02:49 PM   #3
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Default Re: deformed bolt head

Whenever you have a stuck bolt, a screwdriver isn't your best bet, you can't get any leverage with a screw driver. Since you cut the slot into it you should have used an impact driver with the right sized screw driver bit in it. At this point since it's all ground down, your best bet would be to find a nut the right size and weld it through the center to whats left of the head of the bolt. The heat will help loosen it up, plus you'll have a nice clean nut that you can get a wrench on.
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Old 10-14-2011, 02:52 PM   #4
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Default Re: deformed bolt head

Weld a nut on the bolt.
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Old 10-14-2011, 03:01 PM   #5
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Default Re: deformed bolt head

Or just try heating it with a propane torch, see if it will break free.
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Old 10-14-2011, 03:07 PM   #6
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Default Re: deformed bolt head

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Originally Posted by Unkl Ian View Post
Weld a nut on the bolt.
this was my inital thought but i don't own a welder and when i called up my friend that does own one he's out of gas
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Old 10-14-2011, 03:08 PM   #7
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Default Re: deformed bolt head

Time to buy some good tools.
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Old 10-14-2011, 03:22 PM   #8
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Default Re: deformed bolt head

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Originally Posted by Unkl Ian View Post
Time to buy some good tools.
i'm 20 years old,lost my job due to the economy and am trying to find an apprenticeship with no luck so i'm kind of limited to the tools i have
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Old 10-14-2011, 03:39 PM   #9
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Default Re: deformed bolt head

+1 on heating it up, propane is your friend. penetrating oil, kerosene, keep at it and be patient, if it ain't budging let it sit then try heat again later, you will get it.
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Old 10-14-2011, 03:49 PM   #10
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Default Re: deformed bolt head

Grind a small notch in the side of the bolt head. Use a small chisel in the side of the notch and tap sideways in the direction to loosen it.
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Old 10-14-2011, 03:53 PM   #11
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Default Re: deformed bolt head

Sell the bike and get your money back (what, $500 - 750?). Buy some good quality basic tools and start building from scratch. Otherwise I think you're in for a lot of frustration.
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Old 10-14-2011, 03:58 PM   #12
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Default Re: deformed bolt head

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Sell the bike and get your money back (what, $500 - 750?). Buy some good quality basic tools and start building from scratch. Otherwise I think you're in for a lot of frustration.
Great suggestion.

Stuck bolt doesn't care if your tools are awesome. It's still stuck.
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Old 10-14-2011, 04:09 PM   #13
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Default Re: deformed bolt head

I think that project is cursed.
Time to call in a Catholic priest.
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Old 10-14-2011, 04:47 PM   #14
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Default Re: deformed bolt head

i think we've all been in that situation or close at some point in our learning curve; is there no one local to that kydd that can give him a hand?

sh*t, i knowlots of the tips and short cuts I learntwer from older hands.

kydd; if nothing comes along find your local small engineers work shop, garage. Tell them your problem, be courteous and deffo' not pushy you maybe suprised.
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Old 10-14-2011, 05:02 PM   #15
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Default Re: deformed bolt head

Cut/drill the head off the bolt and punch it out. Also heat, as mentioned.
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Old 10-14-2011, 06:04 PM   #16
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Default Re: deformed bolt head

Ok, I didn't describe my method very well, maybe a picture will help. If there is enough material on the bolt head this should work. Make a notch on the side of the bolt head. Just enough for the chisel tip to bite into. Take a hammer and tap it to the left. The hammering action will shake it loose as well as unscrew it. The hammer will also make the chisel bite harder. I have used this method in the field when resources were limited with good results. You have to use a chisel, a screwdriver as a chisel will not work.
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Old 10-14-2011, 06:48 PM   #17
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Default Re: deformed bolt head

2 fast tips with a BSA

1) it is an old bike .. pb blaster it before you try ... let it sit in for a good while and then try to get it out ...

if it does not come loose ..

2) Pb blast it again and let it sit for a week then try . .... worked more than a few times for me

BSA's get pricey fast so an a65 might not be your best option for a build.
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Old 10-14-2011, 06:52 PM   #18
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Default Re: deformed bolt head

or go buy a ten dollar roll of flux core mig wire and weld the nut on , it works better for small welders anyway. Just another option Kydd. Dont those kickers bolt on like a Triumph? If they do you cut off the nut and knock the pin out. new ones are like $10.00
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Old 10-14-2011, 09:33 PM   #19
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Default Re: deformed bolt head

Always surprises me with rounded off heads, for 10+ years I have used the tool for the job. As long as you have proper access, use a pipe wrench! That biatch bites harder the more you lean on it and are cheap/common in various sizes.

Learned mostly from working with alot of capscrews that would not budge. Forget visegrips, they just slip.
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Old 10-14-2011, 09:57 PM   #20
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Default Re: deformed bolt head

Quote:
Originally Posted by swooshdave View Post

Stuck bolt doesn't care if your tools are awesome. It's still stuck.
Cheap/Shitty tools are more likely to
round off a bolt head, even if it isn't stuck.

Decent quality tools fit better, and are made from better material.

Cheap no name EZ Outs are almost guaranteed to break.

Good brand name EZ Outs, used correctly,
are probably successful 9 times out of 10.
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