David,

In almost 45 years of working on cars, I've never had a penetrating
oil of any kind solve a problem like you are having.

If you have a good nut splitter try that. It has worked on rusted,
rounded exhaust nuts for me. I have been able to chisel and grind the
waste nut away and rechase the threads.

Prepare to break the studs if the nut splitter doesn't work.

Jim

On Mon, Feb 8, 2010 at 5:46 PM, David Marshall
<mailinglist@fastforward.ca> wrote:
> I am trying to replace the turbo on my Syncro TriStar.� It it held on
> to the manifold with three 13mm nuts, these nuts go on to studs which go
> into the manifold.� I really don't want to break the studs.� I
> can put enough pressure on the socket where I know if I go much further
> the stud will break.
>
> Three days of penetrating oil
> "3-IN-ONE 'High Performance Penetrant'" and no with luck other
> than my garage stinks.
>
> I've tried the tighten a bit and
> then loosen which seems to work with allen bolts and light tapping with
> the impact gun... they're still in place.
>
> What should I do
> next?
>
> David Marshall
> VW Adventure Driver and BMW
> Adventure Rider
>
> HasenWerk
> http://www.hasenwerk.ca
>