Replace Exhaust Studs??

[Craig Roche]

With the help of this board my heat exchanger removal went without a problem!! I soaked them with PB B'laster once a day for a week. Used a T-handle 8mm hex key on the barrell nuts and they came right off. I used the famous "dremel your nuts off" method on the nuts and it worked prefectly.

My question is: are you supposed to replace the studs at this point? If so, what is the recommeded replacement?

Thanks again for all the help!!!

[Vipergrün]

I just did this for two reasons; change to shorter studs so I could use the barrel nuts with my thin-flange SSI's, and to replace the original studs since they were 24 years old. I used heat and PB Blaster, as well as an Assenmacher 8mm stud removal socket. 11 studs came out easily, I broke one off level with the case and had to drill it out. It's basically a crapshoot, but now I know I have 12 new studs with plenty of anti-seize on them. If your car has been in AZ most of its life, you probably do not have much corrosion. As far as replacements, a lot of folks seem to be going with stainless steel, I went with OEM...should be good for another 24 years

Good luck!

-b

[Craig Roche]

Hey Brad<

Thanks for the response! Well, the car has not been in AZ it's whole life. Some in NY and some in Florida. What is a "Assenmacher 8mm stud removal socket"? Where do I get one?

I'm still questioning if I'm suppose to replace the studs??? Anyone know?

[89911]

I'd say if they stay in and look all right, leave em alone. Why go looking for trouble?

[fred cook]

LEAVE'EM ALONE! If they are not broken or have terminally damaged threads, DON'T try to remove them. Unless you have a leprechaun in both pockets and a bushell basket full of four leaf clovers, they will break when you try to remove them. I would simply chase the threads with an 8mm die and put everything back together using the new copper hex nuts on the outside studs and plenty of anti-sieze on the barrell nut studs.

Good Luck,

Fred Cook
'80 911SC coupe

[1980 911 sc]

I have very little experience to back this up but, don't remove them. if one would break I would not want to be the one who is gonna hand drill out that flush broken stud...

[john walker's workshop]

truer words were never spoken. craig got lucky, 99% of them don't come out.