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helicoil a brake caliper

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daffy
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Joined: 12 Jul 2011
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PostPosted: 21:53 - 27 Jan 2013    Post subject: helicoil a brake caliper Reply with quote
need some help here. thread is fucked in the caliper, the bolt winds in hand tight, keeps spinning and doesn't bite. do i helicoil it or tap n get a bigger bolt? thanks.
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Matt578
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Joined: 05 Apr 2012
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PostPosted: 22:27 - 27 Jan 2013    Post subject: Reply with quote
Do you have a picture?
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EazyDuz
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Joined: 11 Apr 2011
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PostPosted: 22:52 - 27 Jan 2013    Post subject: Reply with quote
Isnt helicoiling tapping anyway? You tap so the helicoil threads in place.
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Nick_Giles
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Joined: 01 Jan 2012
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PostPosted: 23:07 - 27 Jan 2013    Post subject: Reply with quote
EazyDuz wrote:
Isnt helicoiling tapping anyway? You tap so the helicoil threads in place.


Yes it is. Thumbs Up

But with a helicoil you then screw in an insert and then use the original size bolt.

I think the OP is considering drilling and tapping a larger thread and then using a larger bolt that will then fit the new larger thread.



Nick
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EazyDuz
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PostPosted: 23:11 - 27 Jan 2013    Post subject: Reply with quote
Thought so, in which case theres no point. Helicoils are supposedly stronger than the original thread
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daffy
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PostPosted: 23:19 - 27 Jan 2013    Post subject: Reply with quote
Matt578 wrote:
Do you have a picture?


a pic of what? its a front caliper of an fzr 600r


nick, spot on. never had the need to do either before so not sure which is better
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Matt578
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PostPosted: 23:40 - 27 Jan 2013    Post subject: Reply with quote
Just wanted to see Exactly what you was talking about so i could give you some reasonable and accurate advise. If you can tap it one size up and get away with using a larger bolt then go for it, Just check the larger bolt will go through the hole in the fork too, If it won't helicoil might be the way forward.
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Walloper
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Joined: 24 Feb 2005
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PostPosted: 03:12 - 28 Jan 2013    Post subject: Reply with quote
EazyDuz wrote:
Thought so, in which case theres no point. Helicoils are supposedly stronger than the original thread


The fcuk they're not.

Helicoils would only be 'stronger' when inserted into a soft/er alloy. In steel they are a bit weaker than tapped parent metal due to stack up of tollerance. i.e. The small gaps introduced between the treads (which enable a fastener to be turned in/out).
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Old Thread Alert!

The last post was made 12 years, 330 days ago. Instead of replying here, would creating a new thread be more useful?
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