[s-cars] Turbo to Exhaust manifold studs

[manuelsanchez at starpower.net]

Brian,

It's one of the top studs, closest to the front/radiator. I can get to it from underneath, after removing the horn assembly.

It's possible I did not receive the correct part, the stud I have is 1-1/2 inches (38mm) in overall length. The shortest part of the threaded portion is 1/2" (13mm) in length before it reaches the non threaded shoulder.

When I insert the stub finger tight, it sticks out further than the other three. I just don't know if it's the correct stud length, but I am unable to thread it enough, or if I have it threaded in all the way but it's overall length is too long. I don't want to cut it for fear that if it is the correct overall length then I've boogered the only spare I have.

Here's hoping someone knows the proper stud length for a RS2 turbo to RS2 Exhaust Manifold length.

Thanks for your help.

Regards,

Manny
95.5 urS6 Avant

It would be great to know what the 

---- Original message ----
>Date: Sat, 9 Oct 2010 14:10:28 -0400
>From: brian hoeft <qweblog at gmail.com>  
>Subject: Re: [s-cars] Turbo to Exhaust manifold studs  
>To: manuelsanchez at starpower.net
>Cc: s-car-list at audifans.com
>
>   Hi Manny,
>
>   I thought those studs (or just the last ones I
>   replaced) were all threaded shank but generally the
>   shorter, threaded section of studs go into the
>   internally threaded section of whatever, leaving the
>   longer threaded section for the attachment (in this
>   case a turbo) and lock nuts.
>
>   As for the lock nuts, they are just that, lock nuts,
>   and wont thread past a few threads because that's
>   how it deforms while locking into place.
>
>   Hopefully it was one of the 2 lower studs, otherwise
>   its gona be a bit difficult to turn them in snug.
>   Snug for these, for me, is turning them till they
>   stop with a good amount of wrist strength, not
>   forearm tight. But if you are using the 2 nut
>   method, it will only allow so much before they spin
>   together, thats usually tight enough. And I still
>   use thread sealer..
>
>   -Brian
>
>   .
>
>   On Sat, Oct 9, 2010 at 12:21 PM,
>   <manuelsanchez at starpower.net> wrote:
>
>     Fellow S-heads,
>
>     One of the 4 turbo to exhaust manifold studs has
>     worked its way out. I have a new replacement in
>     hand but wanted to confirm with those wiser than
>     me that the end of the stud that goes in first is
>     the end that is closer to the unthreaded
>     "shoulder". This untrheaded portion looks like
>     that small section of worm thats a bit thicker
>     than the rest of it.
>
>     Never having installed one of these I was
>     wondering what the orientation should be and how
>     far in the stud should thread into the exhaust
>     manifold before I know its in far enough. It does
>     not seem to bite into too many threads before I
>     stop threading it in by hand...wondering if this
>     is normal.
>
>     The copper nut also seems to only thread onto the
>     stud for a short portion when threading by hand. I
>     was also wondering if that is by design, so that
>     when I put a wrench on it finally the nut will
>     thread the stud further into the manifold.
>
>     Thanks.
>
>     Manny (95.5 urS6 - front suspension finally
>     installed)
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