exhaust stud welded inpace, 2 nuts didnt work

[ilikespeeding]

Ok, my exhaust stud on number 2 is welded in place. The reason? The last owner pushed 25 psi on the 14B with a side mount intercooler using 550 cc injectors. Luckly he had a built motor or we'd be replacing it. Anyways, I tried replacing the studs and I got most out except on number 2. That one is broken. I searched and found the two nut method. Didnt work. That just pulled both nuts out. I got frustrated and decided to take a break, which is where I am at now. Does anyone have any ideas? I really really really dont want to remove or replace the head. EZY out is probably pretty difficult considering the angle and space limitations (without removing the head). Could a propane touch help me out?

 

[blazebolt]

If you have a welder, you could weld the nut to the bolt. Then I'd heat it up with the torch. Don't forget to PB blast it first.

 

[snox135]

If you weld a nut on the end, just remove it right away. It will be hot enough. If you get it too hot the stud will bring the aluminum threads with it.

 

[ilikespeeding]

If you have a welder, you could weld the nut to the bolt. Then I'd heat it up with the torch. Don't forget to PB blast it first.

Could I use thread lock to avoid risking my threading?

 

[snox135]

Thread lock will not hold. The 2 nuts will hold better than thread locker.

 

[ilikespeeding]

I meant placing thread lock on the second bolt. Surely that would hold better than just the two bolts.

 

[drewvr4]

Could I use thread lock to avoid risking my threading?

try putting a wet rag or something close to the block

 

[ilikespeeding]

try putting a wet rag or something close to the block

Would that really help?

 

[drewvr4]

yea it helps keep the heat out by evaporting the water

 

[ilikespeeding]

Okay, well the torch didnt work. I keep trying the two bolt thing and that's not working. Im out of ideas other than removing the head. I dont have access to a stick welder. Anyone else got ideas?

 

[snox135]

I never thought of this before. But if you have enough stud sticking out to get two nuts on it. You should be able to get one of these on it. A propane torch probably will not help much. It might help a little bit but there's not alot of heat with one of those.

I don't remember what size the exhaust studs are. The craftsman unit goes down to 5/16 but Sears also sells one by KD tools that goes down to 1/4" (doesn't matter that the studs are metric for these). Sears also sells a set made by OTC that are different, but I've never used those before.

 

[luvmygst]

A propane torch is pretty much useless in this situation. You need a oxy/acytelene torch to get the heat you need. I have seen people use the 2 nut method after running the car to get the studs warm. Watch out for your hands though. It did seem to help come out easier.

 

[wret]

Can you get a pipe wrench on it?

 

[eclipsh]

Careful with the pipe wrench, you may just snap the stud off in the block.

If you can fit two small vice grips on in opposing directions you could keep the torque on the stud evenly distributed to avoid breaking it. I know there isn't that much sticking out but two small vice grips should be able to get on there.

 

[99gst_racer]

Propane almost never gets hot enough to help in a situation like this. In this situation, I would say oxy/acytelene, but I'm unsure how this will affect the aluminum head, so I'm not going to recommend it at this point.

I really like the idea of welding a double nut to the stud. Everybody knows somebody with a MIG welder these days.