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-   -   Exhaust leak by headers (http://legacygt.com/forums/showthread.php?t=202658)

stevo0525GT 03-01-2013 10:21 AM

Exhaust leak by headers
 
So I was installing new headers on my 05 legacy gt and a piece of threading where manifold attaches to heads cracked off so there is no way to put a new bolt in and secure the headers on tightly. I was curious what would be needed to be done. Would I need to goto a machine shop to weld on new threading?

Indiglow 03-01-2013 11:11 AM

what header is it? post a pic

stevo0525GT 03-01-2013 11:15 AM

I will when I'm home. But it's where the manifold attaches to the block.

Indiglow 03-01-2013 11:18 AM

what....header....is....it

oem?

stevo0525GT 03-01-2013 11:21 AM

Oh. Ha sorry borla headers but its not on the headers it's the block

Indiglow 03-01-2013 11:22 AM

so the head is cracked/chipped? or just the stud is pulled out?

stevo0525GT 03-01-2013 11:28 AM

The place where the stud threads in chipped and fell off so the stud has nowhere to thread into

GEE-OTTO 03-02-2013 10:20 AM

Quote:

Originally Posted by stevo0525GT (Post 4318702)
The place where the stud threads in chipped and fell off so the stud has nowhere to thread into

Thats not too terrible you may be able to re-thread the existing hole to the stock stud size if that fails you can use a heli-coil.

stevo0525GT 03-03-2013 11:07 AM

Well that would require drilling into the cylinder heads.! Which I'd rather not do ha. I was thinkin I could get someone to weld the old chunk of the threading back on and if that would hold. B/c also of I did the helicoil the exhaust still wouldn't sit right cuz it is still missing that huge chunk

sigmafour 03-03-2013 08:03 PM

What on earth did you do?!!!?

Welding may be a rough way to resolve this on the car and depending on the damage may not be that effective, it's not like you can weld the backside. Can you take pictures and show us?

stevo0525GT 03-06-2013 09:10 AM

Haha I didn't do anything it just cracked and there was no bolt there haha. But I took it to a friend who owns an exhaust shop who is really good at welding and he said it wouldn't be that effective b/c it's aluminum so I think I am going to have to replace the heads altogether.... Any thoughts?

Max Capacity 03-06-2013 09:29 AM

Wow all these day's and know one has used the correct terms.

You broke the stud off. You well need to find a good repair shop and hopefully have them use a easy out to remove the rest of the stud.

They may need to put a insert in there for the new stud.

I guessing you didn't use any PB Blaster before you did this.

ctlex 03-06-2013 01:34 PM

the best way is to drill it out,tap it, and insert a heli-coil

sigmafour 03-06-2013 01:54 PM

Max you think he just snapped the stud? With no pictures we can't be sure but he sure sounds like it's more than just the stud... ????

Exhaust shop has no tig welder? But yes, the heads being replaced is a better long term fix IF this is far more than just the stud.

Max Capacity 03-06-2013 04:31 PM

Quote:

Originally Posted by ctlex (Post 4326790)
the best way is to drill it out,tap it, and insert a heli-coil


Right that's what the fix will be.


Quote:

Originally Posted by sigmafour (Post 4326824)
Max you think he just snapped the stud? With no pictures we can't be sure but he sure sounds like it's more than just the stud... ????

Exhaust shop has no tig welder? But yes, the heads being replaced is a better long term fix IF this is far more than just the stud.

I can't believe the head is cracked there from just removing the manifold, even if the stud broke.


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