Notice: We request that you don't just set up a new account at this time if you are a previous user.
If you used to be one of our moderators, please feel free to reach out to Chris via the facebook Outerlimits4x4 group and he will get you set back up with access should he need you.
Recovery:If you cannot access your old email address and don't remember your password, please click here to log a change of email address so you can do a password reset.

Thread repair, not inserts

General Tech Talk

Moderators: toaddog, TWISTY, V8Patrol, Moderators

Post Reply
Posts: 817
Joined: Fri Jun 17, 2005 9:23 pm
Location: Sydney

Thread repair, not inserts

Post by TheOtherLeft »

Hiya fellas,

What do you guys use for thread repair? I'm not talking about inserts - helicoils etc.

My wheel studs or lugs are quite tight to get moving with some of them starting fine but then getting quite a bit of resistance if tightening by hand. With a standard wheel brace they are easy. Others go on by hand a lot easier.

I saw this looks cool: http://www.youtube.com/watch?v=lJdifN-dg-M

I'm wondering what's out there for repairing both male and female threads.

CHeers.
Posts: 1183
Joined: Tue Sep 22, 2009 10:24 pm
Location: In the Hills With a Riffle

Re: Thread repair, not inserts

Post by V.W.Dave »

Not wanting to bash my products but they really are good in this department.

http://buy1.snapon.com/catalog/item.asp ... ir=catalog" onclick="window.open(this.href);return false;

Another thing to do is make a tap/die out of a new or good wheel nut. using a cut off wheel cut a grove into a loose wheel stud (or a bolt with the same treads) Making it like a tap.
Posts: 261
Joined: Sat Feb 20, 2010 11:41 pm
Location: Katherine NT

Re: Thread repair, not inserts

Post by supazuk »

the studs are probably stretched, i would replace them. ;)
Posts: 130
Joined: Tue Apr 19, 2005 1:32 pm

Re: Thread repair, not inserts

Post by hotgemini »

Yeah, pushing your luck with wheel studs/nuts is a crazy man's game. Buy new ones, google 'nice products wheel studs' and look up a part number or just walk into any autobahn/repco/etc.
Posts: 19062
Joined: Sat Oct 25, 2003 11:39 pm
Location: In a horse near you

Re: Thread repair, not inserts

Post by chimpboy »

hotgemini wrote:Buy new ones
For sure.
This is not legal advice.
Posts: 2492
Joined: Sun Nov 24, 2002 8:57 pm
Location: Melbourne

Re: Thread repair, not inserts

Post by bazzle »

As well as studs stretching nuts get smaller where they contact the taper and may need the first few mm redrilled.

Bazzle
Posts: 1383
Joined: Tue May 06, 2008 8:12 pm
Location: Newcastle

Re: Thread repair, not inserts

Post by oldmate »

being wheel studs you should just replace them. But for most other thread repair I'd use a thread file. It's much more convenient and cheaper than having a whole heap of taps and dies of different sizes lying about. tap and dies are really just for making new threads, not so much thread repair.
The worst part about being told you have Alzheimer's, is that it doesn't just happen once.
Posts: 817
Joined: Fri Jun 17, 2005 9:23 pm
Location: Sydney

Re: Thread repair, not inserts

Post by TheOtherLeft »

Thanks for the tips so far.

What stretches wheel studs? Overtightening?
Posts: 1400
Joined: Sat Mar 06, 2010 1:24 pm
Location: Western Burbs Melb

Re: Thread repair, not inserts

Post by chris_stoffa »

TheOtherLeft wrote:Thanks for the tips so far.

What stretches wheel studs? Overtightening?

Rattleguns
Cancel my subscription - I don't want any of your issues
God of Athiests
Posts: 8336
Joined: Thu Aug 07, 2003 2:14 am
Location: Brownsville

Re: Thread repair, not inserts

Post by DamTriton »

TheOtherLeft wrote:Thanks for the tips so far.

What stretches wheel studs? Overtightening?
http://www.outerlimits4x4.com/viewtopic ... 2&t=218190" onclick="window.open(this.href);return false;

Gives the principles. There have been several other thread about the subject too (no pun intended)

http://en.wikipedia.org/wiki/Screw#Mech ... ifications" onclick="window.open(this.href);return false;

"...Tensile ultimate strength is the stress at which the bolt fails. Tensile yield strength is the stress at which the bolt will receive a permanent set (an elongation from which it will not recover when the force is removed) of 0.2 % offset strain. When elongating a fastener prior to reaching the yield point, the fastener is said to be operating in the elastic region; whereas elongation beyond the yield point is referred to as operating in the plastic region, since the fastener has suffered permanent plastic deformation...."

In short, overtightening. Once the process has stated the molecular structure of the material changes and the material gets weaker, to the point where even the normal torque requirements for that stud are enough to put it int plastic mode, sending it on a slippery slide to failure. It stretches each time it is "correctly" loaded after being overloaded initially.
George Carlin, an American Comedian said; "Think of how stupid the average person is, and realise that half of them are stupider than that".
Posts: 1400
Joined: Sat Mar 06, 2010 1:24 pm
Location: Western Burbs Melb

Re: Thread repair, not inserts

Post by chris_stoffa »

Yep, as I said, Rattleguns.

Your not gunna reach "elasticity" , "elongation", "Plastic deformation" and "yield" with a normal wheel brace or even a standard breaker bar.

rattleguns, hate em ,stay away from em, won't use em and don't you touch my nuts with one :P

Cheers
Cancel my subscription - I don't want any of your issues
Posts: 817
Joined: Fri Jun 17, 2005 9:23 pm
Location: Sydney

Re: Thread repair, not inserts

Post by TheOtherLeft »

chris_stoffa wrote:Yep, as I said, Rattleguns.

Your not gunna reach "elasticity" , "elongation", "Plastic deformation" and "yield" with a normal wheel brace or even a standard breaker bar.

rattleguns, hate em ,stay away from em, won't use em and don't you touch my nuts with one :P

Cheers
What did the old rattleguns torque nuts up to? I assume those coloured torque bar attachments would be accurate, assuming of course teh monkey used the right one.
Posts: 490
Joined: Wed Mar 10, 2010 10:36 am
Location: Endeavour Hills, VIC

Re: Thread repair, not inserts

Post by tehekho »

chris_stoffa wrote:Yep, as I said, Rattleguns.

Your not gunna reach "elasticity" , "elongation", "Plastic deformation" and "yield" with a normal wheel brace or even a standard breaker bar.

rattleguns, hate em ,stay away from em, won't use em and don't you touch my nuts with one :P

Cheers
Not even with a torque bar?

And what about for undoing bolts?
ferog wrote:I've had worse smelling fingers though.
Posts: 2585
Joined: Fri Mar 28, 2008 4:45 pm
Location: SYDNEY

Re: Thread repair, not inserts

Post by thehanko »

Yeah, we now use rattle guns for fast removal of nuts and a quick blip to tighten until contact then tension them all by hand now after rattling too tight.
*there's a rock, drive over it :) there's a bigger rock, drive over it :twisted: there's an even bigger rock, oops broke it :oops: Upgrade broken bit :bad-words:
Goto *
Post Reply

Who is online

Users browsing this forum: No registered users and 2 guests