30 replies to this topic

[matt050990]

One of my co-workers said to use the tool @ 18 minutes in,

He said that's the best way and what he has always done?

[Woody001]

Try the traditional method first.

File off the top of the stud to give a flat surface if possible.

Heat the area up with a gas torch - this should break the corrosion interface.

Then get a centre punch and on the edge of the stud top, tap it at an angle to try and rotate the stud in a anti-clockwise direction.

 

Failing that then as others have said, try to use a screw extractor, ensure you get the straight fluted ones, not the tapered ones which invariably try and expand the stud and then break.

 

http://forums.t5d5.o...-1411138971.jpg

Edited by Woody001, 16 April 2015 - 12:36 PM.

[Swift_General]

Please don't use a stud extractor. It may work but probably won't and if it snaps you're really knackered. Do as Cooperman said and drill it out then heli coil it. That way you end up with the problem sorted and is in no way a 'bodge' if done properly.

Edited by Swift_General, 16 April 2015 - 01:32 PM.

[matt050990]

Did have a look at them Helicoil things,

If it all goes wrong and I cant seem to sort it then that will be my next step.

I can get hold of a set of stud extractors to borrow so ill give that a go and go from there....

[gazza82]

I can get hold of a set of stud extractors to borrow so ill give that a go and go from there....

 

Why would you want to do that when everyone on here says NOT to use stud-extractors?

[matt050990]

I have the use of a stud extractor available to me.
If that's fails then helicoil it shall be but might aswell use what I have 1st?

[carbon]

If the stud extractor snaps off you might as well start looking for another head...

[matt050990]

Just seems a little strange how they are highly recommended on Internet and YouTube but everyone in here hates them?
As long as I don't snap them then the helicoil is a back up

[carbon]

Bet you a pound to a penny that the stud extractor snaps off before the bolt shifts.

 

Your call.

[Blatherskite]

If you're lucky the stud will spin out when you drill it and you won't need a helicoil

He's going to have to get a lottery ticket the next day is it spins out whilst drilling. The other option is to weld a nut to the top of it and try and remove undo it. I find with the intense amount of heat you use during the welding it's enough to break the corrosive bond the stud and the head have and it comes undone with a bit of force.

There was a post last week about getting a left-handed drill bit, and hoping that the stud spins out as you drill it. Thread was to do with top engine steady, if I recall right.

[Swift_General]

Bet you a pound to a penny that the stud extractor snaps off before the bolt shifts.
 
Your call.

+1

[matt050990]

Stud retractor got it out.

Easy as punch.

[carbon]

Really good to hear the stud extractor worked for you.

 

My past experience with them has not been so positive!

[Woody001]

Well done!

[carthorse]

Nasty cheap stud extractors from autojumbles and eBay are a recipe for disaster and the cause of much woe. Decent sets that come with matched colbalt drills of the correct size when employed with a proper tap holder and a steady hand are fine and relatively quick and easy to use.
Drilling oversize then fitting a helicoil is a faff, often involves buying a helicoil kit you may never use again and if you muck it up can scrap the casting as effectively as snapping an easy out will.
Top job by the op getting the stud out, but for others facing similar troubles if you can get the problem stud to a local engineering shop / engine builder or a decent local garage then they will often take the broken stud out for the price of a couple of pints over their lunch break. ( they may tease you a bit though )