Snapped Studs From Head To Exhaust Manifold

[DJBarnstar]

I have a big problem.

I am putting a new turbo kit on my RB25.

I have taken off the exhaust manifold to find 3 of the studs have snapped.

2 of them I was able to use a tool with a reverse thread and they pulled out.

The last snapped the tool in the head. I then drilled that out (Took about 3 hours). But now I still can't get the stud out and I'm wrecking the thread.

Can anyone pls give me some advice. It has been suggsted that I get a blow torch and heat it up and try again? But can you heat up alloy safely?

Any input would be appreciated!

Cheers

[Bsa]

dont use a blow torch if the head is still on the block. you have to dril it out to a bigger thread then helicoil only option if you have hacket up the thead

Edited December 18, 2011 by Bsa

[The Mafia]

Don't start putting heat around an allow head, it's not that great for it.

Call up a professional mobile stud removal guy. They'll have it out quick and easy, and for a relatively cheap price too.

[Bsa]

are you talking about easy outs? are you drilling the holes straight? so many people drill it crooked and make more problems then they started with

[AngryRB]

dont use a blow torch if the head is still on the block. you have to dril it out to a bigger thread then helicoil only option if you have hacket up the thead

+1

thats what i did with mine, had to use a larger helicoil when the first one didnt work, use a center punch so you drill in the middle otherwise it will be harder, lucky my bolts were not too tight,

good luck

[DJBarnstar]

Don't start putting heat around an allow head, it's not that great for it.

Call up a professional mobile stud removal guy. They'll have it out quick and easy, and for a relatively cheap price too.

Excellent. Will do tmw. I hope there is someone in Canberra that can do it. Any reccomendations?

are you talking about easy outs? are you drilling the holes straight? so many people drill it crooked and make more problems then they started with

Yes easy outs. It was one of the studs that are hard to get to so probably wasn't straight. But the others came out easily so this one is just being a prick.

Thanks for pointing out about the heat and alloy.

Thanks.

[abr33]

+1 to mafia's idea, i did the same thing to my exh studs before too. I remove studs at work all the time, usually weld to the broken stud, basically anyway. Or there is a stud remover which slowly arcs the stud away but takes ages.

Do not try welding to them unless you know what your doing. Expect to pay 50-100 bucks depending on how stuck it is plus travel...

Most common reason i see for easyout failure is the hole getting drilled off centre and out into thread, ending in nothing happening. I hate easyouts.

And Id get yourself some arp studs, reason they break is one end is manifold temp- several hundred degrees and other end is head temp- a hundred or 2... Metal doesnt like this.

arp ones are a ground stud with less imperfections

[DJBarnstar]

I've looked up Capital thread repair and will give him a call in the morn.

Hopefully he is not on holidays yet or I'm screwed.....

Ofcourse the car was meant to be going in for the tune tmw.... Ahh cars. Don't you just love em.

[R31Nismoid]

Most states etc have a mobile "thread doctor" or similar. They have all the tools to do it easily and they are pretty cheap too. Easier to just let them do it.

Also change ALL the studs mate, not just the 3 that have broken. Otherwise you'll find more will crack in the next few months and you'll have to do it all again. You didn't make mention so I'm assuming you are only trying to fix the broken ones.

[StevenCJR31]

^ as above . . . ive used an easy out before then the bastard broke off in the last stud in the head , there was no way i was able to drill it out , get a profesional to do the job for you

[GTR_JOEY]

Easy outs are shit.. I had a similar situation..

I ended up gettin a torque spit that was a bot larger then the hole... Put an extension on it and drove it into the stud with a hammer.

Then just put a ratchet on it and it came out. Pretty much the easiest way to remove broke studs and it's the only way I use now

[FJ1600]

+1 for capital thread repair. He should be able to sort you out !

[DJBarnstar]

Ok. The thread guy came today and fixed it. What a relief , I was preparing myself for a head off job.

He replaced a further 5 that broke after my 3 totalling 8 studs!!!!!

So I have 12 new studs and am $264 lighter.

It was worth it though as a tow or gasket kit would have been that alone.

Win from a fail.

Anyway thanks for the tips team.

[SargeRX8]

I know you fixed it but wouldn't heat be the wrong approach? I would have thought using that Locfreeze stuff would be a better choice. When you heat metal, it expands. When you cool metal, it shrinks. This stuff acts like a lubricant to help loosen stuck stiff shit and also helps with inhibiting the new stud getting stuck the next time around. Did the guy removed them for you apply anything to the new studs?

[R33 Eddy]

Don't start putting heat around an allow head, it's not that great for it.

Call up a professional mobile stud removal guy. They'll have it out quick and easy, and for a relatively cheap price too.

+1 to this. don't bother buying ezyouts ect most likely to snap them in the drilled out stud or end up paying double (cost of ezyout set is same a pro to get them out)

Also Ezyouts is the worst thing to use on exhaust studs as the stud actually flattens the thread when installed and as you try and remove with a ezyout it actually trys and expands the stud to grip and gets stuck and usually snaps. I know cause i did it on one of them .

If your Anywhere from Gold-coast to Sunshine coast lookup ProThreads.