heli-coil or new head?

1. technoraver Newbie Joined: Mar 2010 caerphilly Posts: 7 saxo vtr 1999 daewoo kalos 1.4 turbo 2002

   #1 1st March 2010, 18:16

   just bought saxo vtr 1999 very very cheap has alot of parts modded but the thread has gone so one spark plug wont wind in so car only runnin on three plugs been told tha it could be fixed with a heli-coil? is it worth it or is it better to just get new head?
2. Krys_23 Saxperience Post Whore Joined: Aug 2007 Posts: 6543

   #2 1st March 2010, 18:18

   Heli coil is certainly worth it, I did it on my old mauritius blue vtr.. took me a good hour or so to do, It's pretty straight forward if you have a rough idea on mechanical components.
   
   I got my heli coil kit off ebay for £20 and the car never missed a beat after.. if anything the thread was stronger than it came out the factory.
3. yr51ocw Frequent Poster Joined: Oct 2005 Posts: 751

   #3 1st March 2010, 18:55

   you did it in an hour?
   
   Thats pretty good going to removed and refit the head.

   1 user thanked this post: Sparco_Tom
4. user_31895 Frequent Poster Joined: Mar 2009 Milton Keynes Posts: 601 Polar white VTS Fixed for the 2nd time!

   #4 1st March 2010, 18:59

   ^ lol
5. williamsvts Saxperience Post Whore Joined: Feb 2006 northumberland Posts: 7693 pulsar gtir, mk4 astra sxi

   #5 1st March 2010, 19:37

   Quote:

   Originally Posted by yr51ocw you did it in an hour? Thats pretty good going to removed and refit the head.

   
   lol, swarf in the head ftw
6. technoraver Newbie Joined: Mar 2010 caerphilly Posts: 7 saxo vtr 1999 daewoo kalos 1.4 turbo 2002

   #6 2nd March 2010, 09:21

   the head deffo has to cum off en? anyone got a clue to the size heli-coil to use? been told there diff sizes?
7. tobyk Infrequent Poster Joined: May 2008 Aberdeenshire Posts: 129 Mk2 Golf GTI 16v Mk3 Golf GTI 8v

   #7 2nd March 2010, 21:45

   I've helicoiled heads still in place. It's not rocket science. Just have some form of swarf evacuation in place. Airline in the injector hole is a good one.
8. raunchz Saxperience Addict Joined: Jul 2005 Solihull / Bournemouth Posts: 14233 2015 Lapiz Blue Golf R

   #8 2nd March 2010, 21:47

   Quote:

   Originally Posted by tobyk I've helicoiled heads still in place. It's not rocket science. Just have some form of swarf evacuation in place. Airline in the injector hole is a good one.

   I personally wouldn't want to risk it tbh.
9. axsaxoman Saxperience Forum Bum Joined: Jan 2003 Scotland Posts: 3380

   #9 2nd March 2010, 22:50

   Quote:

   Originally Posted by technoraver the head deffo has to cum off en? anyone got a clue to the size heli-coil to use? been told there diff sizes?

   no it coes not -- but i wouldn,t use a helicoil
   "time sert" is what you want -- perfect solution will last forever.
   If who ever is doing it doen,t know what one is then go somewhere else.
   a"time sert" is a steel insert with threads on inside and outside ,
   each size has a special fitting kit as you make new larger htread in head to screw the insert into
10. technoraver Newbie Joined: Mar 2010 caerphilly Posts: 7 saxo vtr 1999 daewoo kalos 1.4 turbo 2002

    #10 3rd March 2010, 09:31

    ''time-sert'' are they a one size fits all or avalible in different sizes if so wat size wud be needed?
11. Krys_23 Saxperience Post Whore Joined: Aug 2007 Posts: 6543

    #11 3rd March 2010, 10:00

    As above i didn't have to take the head off.. did it whilst it was still on, Bit of grease around the lip to catch any metal particles.
12. technoraver Newbie Joined: Mar 2010 caerphilly Posts: 7 saxo vtr 1999 daewoo kalos 1.4 turbo 2002

    #12 3rd March 2010, 17:56

    Krys_23 what size heli-coil did u use on your's?
13. axsaxoman Saxperience Forum Bum Joined: Jan 2003 Scotland Posts: 3380

    #13 4th March 2010, 20:18

    Quote:

    Originally Posted by technoraver Krys_23 what size heli-coil did u use on your's?

    dheli coil is not a time sert
    heli coil WILL come out again at some stage .
    what size -- spark plug size --find a PROPER motor engineer and they will know what you are asking for
14. technoraver Newbie Joined: Mar 2010 caerphilly Posts: 7 saxo vtr 1999 daewoo kalos 1.4 turbo 2002

    #14 4th March 2010, 20:49

    kk cheers m8
15. Olly Saxperience Forum Bum Joined: Dec 2008 Meerkat Harborough Posts: 2638 Saxo vtr mk 2

    #15 4th March 2010, 20:52

    John, Whats the difference in the time sert? Obviously the seated top part, But does the lower threads expand in the hole when the thread screws down, thus making it more permanent than a helicoil?
16. Thecherry0121 Established Member Joined: Dec 2008 Great Barr Posts: 1489 Cherry red 106 GTi

    #16 4th March 2010, 20:56

    http://www.youtube.com/watch?v=Ntiy8L97Nco
17. Olly Saxperience Forum Bum Joined: Dec 2008 Meerkat Harborough Posts: 2638 Saxo vtr mk 2

    #17 4th March 2010, 21:14

    ahh so the bottom few threads are pressed into the repair tap and the top seat stops the insert from turning. Cool!