Removing a broken exhaust stud

[Dave Defferding]

Hi Bernie and Adam,

I have used the heat method (Acetylene torch-"fire wrench") and welded a 
bolt or socket on in the past (AC-DC welder-- no TIG or MIG), but agree that 
Bernie's suggestion should work given a TIG/MIG welder as heat is more 
localized and simpler to do (less chance of starting the car on fire...)
Dave D
----- Original Message ----- 
From: "Bernie Benz" <b.benz at charter.net>
To: "Adam Gratz" <adamgratz at gmail.com>
Cc: "200q20V mailing list" <200q20v at audifans.com>
Sent: Saturday, July 09, 2011 9:53 PM
Subject: Removing a broken exhaust stud


Don’t drill it out if you have access to a TIG or MIG welder. Just
build up the end of the stud until there is enough to get a vice grip
on it. The heat will have freed it and it will spin right out.

Bernie
On Jul 9, 2011, at 7:19 PM, Adam Gratz wrote:

> Temp dependent master cylinder issue. Try flushing first, pump brakes
> with engine running to bleed. Sludge won't clean out from pressure
> bleeding alone. I actually flushed straight brake clean once,
> overkill.... When I was switching to silicon brake fluid.
>
> Hey, anyone have a jig for drilling out a broken exhaust stud? I
> REALLY don't Want to pull the head.....
>
> Pretty please? I'm desperate in Hawaii.
>
> Doc-
>
>
> On Jul 8, 2011, at 9:00 AM, 200q20v-request at audifans.com wrote:
>
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>>   1. Re: Audi Brake Issues (Bernie Benz)
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>> --------------------------------------------------------------------- 
>> -
>>
>> Message: 1
>> Date: Thu, 7 Jul 2011 12:41:41 -0700
>> From: Bernie Benz <b.benz at charter.net>
>> To: "Dave Defferding" <mstrblastr at comcast.net>
>> Cc: 200q20V mailing list <200q20v at audifans.com>
>> Subject: Re: Audi Brake Issues
>> Message-ID: <20334767-5C62-4C11-BFDB-23A145FE963B at charter.net>
>> Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed
>>
>> Dave,
>>
>> No experience with the caliper lock when hot syndrome.
>>  But if all calipers lock at once and to the same degree, has to be
>> the MC not releasing the brake hydraulic pressure back to the  reservoir.
>> If the MC, can only be influenced by the temperature under the hood,
>> not caliper temp.
>> MC piston must return to its at rest position to uncover the
>> reservoir bleed/ feed port.
>> Sludged up MC or PB servo not allowing piston full return?
>>
>>
>> On Jul 7, 2011, at 12:21 PM, Dave Defferding wrote:
>>
>>> Hi Bernie,
>>>
>>> I've been going to write you, as I've (my car that is) has
>>> experienced the caliper lock when hot syndrome a few weeks ago...
>>> They released when everything cooled off and I drove home a few
>>> miles using only the parking brake to stop.  I have flushed the
>>> system every two years, but haven't dissambled and cleaned the
>>> front calipers-- don't rag on me too hard...  I'm guessing, as
>>> others have mentioned the "sticking" problem is in the master
>>> cylinder and not the calipers though.  Remove it and flush
>>> thoroughly perhaps??  Give me you input please.
>>>
>>>
>>> Dave D
>>> ----- Original Message ----- From: "Bernie Benz"  <b.benz at charter.net>
>>> To: "200q20V mailing list" <200q20v at audifans.com>; "Audi 20V"
>>> <20v at lists.20v.org>
>>> Sent: Thursday, July 07, 2011 11:34 AM
>>> Subject: PS pump head leaks, more than you ever wanted to know.
>>>
>>
>>
>>
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