| Author |
Message |
    
Scoobydeaux
| | Posted on Thursday, August 11, 2011 - 03:38 pm: | 
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i have M2 and broke a tap off in the head, i bought a walton tap extractor but when i tried to use it the fingers just bent over what do i need to do to get this tap out? |
Harleyelf
| | Posted on Friday, August 12, 2011 - 03:26 am: |
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Heat the surrounding metal and use small needle-nose pliers to twist it out. |
Reepicheep
| | Posted on Saturday, August 13, 2011 - 09:23 am: |
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And if that doesn't work, the next step is to do surgery with a tungsten carbide dremel bit (or two... or three... depending on how much tap you have to chew through). It isn't pretty, it will take a long methodical job, and has a good chance of damaging threads, but it can be done.
Is it an exhaust header stud? |
Scoobydeaux
| | Posted on Saturday, August 13, 2011 - 12:07 pm: |
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yes it's a header stud. u can't get to it with needle nose but gonna try out the dremmel. i was hopin not to have to do that but think it's my only option. just went through the same thing workin on my brother's bike to. wishful thinkin. lol thanks. |
Reepicheep
| | Posted on Saturday, August 13, 2011 - 12:40 pm: |
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The magic is the tungsten carbide. You will probably need two at a minimum, maybe three. The bullet shaped ones seemed to work longest before dulling. You will also get tons of little metal slivers everywhere also, so definitely have eye protection, and gloves would be wise.
The tap is brittle, so you can also carve a little, hit it with a punch a little, blow out with compressed air, repeat... |
Harleyelf
| | Posted on Saturday, August 13, 2011 - 03:53 pm: |
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And next time use thread cutting oil such as Tap Magic. Do you have a pair of bent tip needle nose pliers? A tap extracting tool can be specially made from a block of steel and two pins small enough to fit into the hole next to the tap. Measure how far apart they need to be and drill holes in the block the size of the pins. |
Harleyelf
| | Posted on Sunday, August 14, 2011 - 08:57 am: |
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The tap shouldn't break if you clean out the hole, lube the tap, turn it in 1/2 turn, back it out 1/4 turn, and then turn it in another 1/2 turn. Re-lube it with light cutting oil frequently and never turn it in more than 1/4 turn of new cutting at a time, backing it out to clear the chips after every new cut. |
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