Helicoil vs Time sert

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This topic contains 18 replies, has 0 voices, and was last updated by  Alex 11 years, 7 months ago.

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  • #103051

    Nick Jackson
    Member

    After a bit of interest in this subject on my crf450 thread I thought it could be helpful to start a new thread on just this subject.

    I’m sure Teknik will put in some great advice to help us all ;)

    Here’s a video ( done by Stephen Hawkins it sounds like :D ) on Time serts
    http://youtu.be/anjDQJtWFc8

    Nick

    #246941

    Nick Jackson
    Member

    Installing a Helicoil

    http://youtu.be/RFYa6sjhh_E

    Nick

    #246944

    Nick Jackson
    Member

    Time sert kit

    th_49560d110fd6682e82e6d9facbcf0fee.jpg

    About $150 for this kit ( does one size only)

    #246945

    Nick Jackson
    Member

    Heli coil kit

    th_ee77325d2562976ce0626d88bd15b67a.jpg

    About $120 for this kit ( does multiple threads )

    #246946

    Greg
    Member
    Nickj wrote:
    Heli coil kit

    th_ee77325d2562976ce0626d88bd15b67a.jpg

    About $120 for this kit ( does multiple threads )

    Don’t want to sound difficult but that isn’t a genuine helicoil kit and some from experience the cheaper kits are crap, the coils break and you end up in my trouble than you started in. The threads break, arent made from stainless, the tags snap before the thread is seated. The genuine kits are more expensive

    Just saying

    TB

    #246942

    Dwayne O
    Member

    Great thread Jacko,,

    I have used Helicoils many times in various applications in the past and they are pretty solid ;)
    Never heard of the Timeserts ,, but it is always good to have more options …

    Cheers

    #246951

    Greg
    Member

    49560d110fd6682e82e6d9facbcf0fee.jpg

    Nick is right the Time-serts are way more solid, dont pull out like a helicoil can and does every now and again , you can back it out if you have a problem on installation and are stronger again.

    TB

    #246947

    Nick Jackson
    Member
    Trailboss wrote:
    Nickj wrote:
    Heli coil kit

    th_ee77325d2562976ce0626d88bd15b67a.jpg

    About $120 for this kit ( does multiple threads )

    Don’t want to sound difficult but that isn’t a genuine helicoil kit and some from experience the cheaper kits are crap, the coils break and you end up in my trouble than you started in. The threads break, arent made from stainless, the tags snap before the thread is seated. The genuine kits are more expensive

    Just saying

    TB

    Great point TB , I was just searching for a picture example and this came up , good to know their are some cheaper sub standard copies out there !!

    Nick

    #246952

    Nick Jackson
    Member

    This is a better quality bike specific kit for M6 and M8 bolts and valued at $178

    th_334be411a0709d250f7e7a82deafe2c3.jpg

    #246985

    Hey Nick
    We use Helicoils (brand name) at work.
    Never had a problem, never really had to use them very often.
    (probably less than 6 times over my whole time as a fitter, 32 years)
    Good luck with what ever you decide on doing. :unsure: 😆 :blink:
    Cheers
    Murph

    #246943

    I have used the helicoil branded ones for a long time in my workshop and have found them easy to fit and extra strong.
    Have used them heaps in alloy chainsaw engines. The only negative I found was sometimes when you are removing a bolt were a coil has been used the coil can wind out as well.
    There are a lot of different ones on the market I also find that the size you have to drill out to fit the coil with helicoils is only minimal.

    Just my opinion
    Robert

    #247002

    Nick Dole
    Member

    Hey, a fastners thread, i’m in love!
    This is my helicoil selection. There are a few brands but we can lump them all into one basket, wound stainless steel inserts.
    null_zps3d6afbae.jpg

    #247004

    Nick Dole
    Member

    You can see from that last photo there are 3 different depths of coils, 1D, 2D and 3D. The Std 1D are 1x the thread diameter in length. In most cases that’s all the thread you need.
    However in high load situations you may need 2D and 3D.
    You can also see the solid inserts, the timesert brass looking sparkplug inserts and the pre loctited Loc sert for when helicoils are stripped out

    #247006

    Nick Dole
    Member

    Now you can see the issue with helicoils, they are just a spring you wind into an oversize tapped hole.
    1. Loctite won’t hold them in, it’s an anaerobic sealant (needs absence of air to dry) The gaps won’t let it go off when you fit it. So you wind your bolt in and the loctite gets on your bolt, then it dries. The next time you pull it out the insert comes out too.
    2. You need to be careful not to skip a thread when you install it, especially if it’s not a deep hole, the tap will stop cutting before the bottom and the insert will jump. Then you wind the bolt in and cross thread it at the bottom. Awesome to take out. Not.
    null_zps31485cad.jpg

    #247010

    Nick Dole
    Member

    This is a spark plug repair time sert. It’s a solid thread that uses a broach to expand the insert into the threads, mechanically locking it into place PLUS threadlock will dry in it too AND if you need to remove it a little heat and an EASY OUT will get it out with no damage to the parent thread.
    null_zps073e04e7.jpg

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