Removing complete exhaust
 

Hi Guys
Its the 1st time I have posted on here, I live in the Uk
Could anyone give advise to remove the complete exhaust on my 111k 1987,911 .
At present it on my mates 2 post lift we have work on the left heat exchanger sheared two studs ,one nut has undone
1st we heated the nut then hammered it ,sprayed plus gas on .
Help!!!

You need a torch that you can heat the nuts red hot then get them off hot.
Youre going to have a problem if you try to drop the whole exhaust all at one time because youre going to bind where the exhaust inserts into the heads.
Bruce

oxy acetylene torch, heat them red and wait until the allen head nuts go dull red before trying to remove them or you can round them out. i remove the exhaust as a complete unit most of the time. just support it so it comes down evenly.

Thanks for your help I have removed exhaust had to cut it up,will heat studs as you guys have said will need to use a stud removal tool I bought from Frost Restorations as studs are damaged.it they break off will drill them to 6mm and use stud extractor

old engineers trick?
 

Heat and cool with water,spray with lubricant,heat and cool again and again if needed,the expansion and contraction breaks the rust and they come undone.

If the stud are sticking out, use a in-line stud remover. Check post 9 & 18 of:

http://forums.pelicanparts.com/porsche-911-technical-forum/621112-broken-exhaust-stud-tool-any-lenders.html

Take a look at this link if you end up having to do a Timesert:

http://forums.pelicanparts.com/porsche-911-technical-forum/597019-time-serts-rescue.html

Thank for the advise all studs now removed only used 3 Helicoils.