exhaust studs on down pipe 280z

[Dave WM]

1 hour ago, JSM said:

From my experience with removing head nuts / bolts is that they normally come out pretty easy.  Just be sure to save those thick washers.  If you need some let me know I have plenty of extras.

So now you have two of the 3 broken?

Let me know if you need the torch.

yea 2 of the 3 I thought I could do it with the cheapo torch, fail.. I am going to try another shop tomorrow before I give up on letting them give it a go. If that fails I for sure will be coming over for the torch. I actually got it to turn some with heat and wax, could tell it was broken loose, but my mistake was assuming that once it was broke loose it could just be turned out. Seems like you have to work for every tiny bit (heat wax,heat wax, heat wax)for at least a lot more than what I did.

Edited March 27, 2017 by Dave WM

[sweatybetty]

have you tried freeze out (freeze off) yet? stuff works pretty good. i used it on my manifold studs, every one came out without snapping

heres a link

 

 

[Namerow]

I've had mixed results with Freeze-Off type products.  They work like a charm sometimes, but aren't much help in other cases.  I freed up all three of my downpipe-to-exhaust fasteners successfully using heat only... but it took renewed heating many steps along the way for each fastener to coax them loose.  They were reluctant to turn for at least the first 1/4" of thread travel.  I had to use MAP gas and a swirl-type torch head to generate enough heat.  An oxyacetylene torch is ideal, if you have access to one.