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Helicoil. North east

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deka
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Helicoil. North east

#1 PostAuthor: deka » Sun Jul 07, 2019 11:16 am

Had one of the studs sheer at the bottom of the fork legs. Can anyone recommend somewhere in the north east who could repair. I could give it a go myself but this bike is fighting me all the way. This is the third set of fork legs I have had and I am losing the will
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ZedHead
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Re: Helicoil. North east

#2 PostAuthor: ZedHead » Sun Jul 07, 2019 2:24 pm

Is the stud end still in the fork? A left hand drill bit and a bit of heat might get it out and leave the thread intact. If you get the drilled hole to the right size you might be able to get a torx bit to bite on it.

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Re: Helicoil. North east

#3 PostAuthor: Philippe » Sun Jul 07, 2019 3:29 pm

Hi Derek
don't give up now! you can do it! act as zedhead wrote, the broken stud will come out in the end.
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deka
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Re: Helicoil. North east

#4 PostAuthor: deka » Sun Jul 07, 2019 4:48 pm

Unfortunately it had snapped flush so it will need to be drilled and helicoiled

I will keep plugging Away not going to give up
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z1bman
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Re: Helicoil. North east

#5 PostAuthor: z1bman » Sun Jul 07, 2019 5:53 pm

center punch the middle of the stud then drill with a 4mm drill then knock in a torx bit so its a tight fit. heat around the stud with a heat gun untill it is as hot as you can get it & it should come out without having to heli coil

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ZedHead
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Re: Helicoil. North east

#6 PostAuthor: ZedHead » Sun Jul 07, 2019 6:55 pm

z1bman wrote:center punch the middle of the stud then drill with a 4mm drill then knock in a torx bit so its a tight fit. heat around the stud with a heat gun untill it is as hot as you can get it & it should come out without having to heli coil


That's the way to do it :up

deka
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Re: Helicoil. North east

#7 PostAuthor: deka » Wed Jul 10, 2019 8:37 pm

It was time to bite the bullet and give it a go
0A588D7E-B702-4467-9359-C7A64A413B12.jpeg


Filled the stud hole with releasing fluid and covered over and repeated for a few days

F591ACEF-F76C-4CCD-943F-807EA87FCBD1.jpeg

Centre punch
C22D57A8-9149-45CC-ACFB-B0C4CC135553.jpeg

2.5mm pilot hole
B8A0901C-1366-4766-B602-9774CFBCEC82.jpeg

4 mm drill
B273DB3A-DD0E-4A48-9A35-238E48F1A622.jpeg

Inserted a screw extractor and while using a large amount of heat bingo out it came
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Paulb
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Re: Helicoil. North east

#8 PostAuthor: Paulb » Sat Jul 13, 2019 6:58 pm

Well done Deka
Good result
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chrisNI
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Re: Helicoil. North east

#9 PostAuthor: chrisNI » Sun Jul 14, 2019 9:57 am

Good work well done :D

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Re: Helicoil. North east

#10 PostAuthor: ZedHead » Sun Jul 14, 2019 11:02 am

Result!

Don't make the mistake I did once with a screw extractor trying to get a locking wheel bolt off. I drilled the hole too deep, only to discover the extractor was expanding the bolt as it went in. No amount of leverage would budge it after that!

A suitable size torx bit got it out in seconds.


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