[V8] IC cold solder joints

Tue Feb 3 12:07:11 PST 2009

Jason,

Don't know if you need it or not,  but here's my writeup from Sept 2004:

http://www.audifans.com/pipermail/v8/2004-September/003714.html

HTH

Ingo

On Feb 3, 2009, at 2:24 PM, Jason Wilkerson wrote:

> Thanks,
>    I love these cars too - I must, I've had two of 'em - 10 years /  
> 100k miles worth.  I have done just about everything on them from  
> Auto Trans rebuilds to timing belts and all the crap in between  
> (including at least 15+ dash/cluster removals!).  Tonight I'm going  
> to re-work the whole back end suspension and brakes.  Plus, I'm  
> trying to get up the nerve to spend the money on the 5spd  
> conversion!  Thanks again all.
>
>
> --- On Tue, 2/3/09, Ron Wainwright <ron_01056 at yahoo.com> wrote:
>
>> From: Ron Wainwright <ron_01056 at yahoo.com>
>> Subject: Re: [V8] IC cold solder joints
>> To: wilke_jb at yahoo.com
>> Cc: v8 at audifans.com
>> Date: Tuesday, February 3, 2009, 11:36 AM
>> @ least you'll be an expert IC remover/installer ;-)
>>
>>  & thank you for the kind words. In your case I thought
>> that the problem lied in the cluster & not the Blk
>> box.... but just needed some background on what you have
>> tried, & when it started to happen. But,
>> I'm not in the biz of selling or giveing parts away
>> that someone doesn't need.
>>  I try to help out as much as I can! I LOVE these
>> cars!!!!!!
>>
>>  Ron
>>
>>
>>
>> --- On Tue, 2/3/09, Jason Wilkerson
>> <wilke_jb at yahoo.com> wrote:
>>
>>> From: Jason Wilkerson <wilke_jb at yahoo.com>
>>> Subject: Re: [V8] IC cold solder joints
>>> To: "V8 list" <v8 at audifans.com>
>>> Date: Tuesday, February 3, 2009, 11:12 AM
>>> Thanks all,
>>>   I plan on taking the dash out (yet again) in a month
>> or
>>> two - I'll re-solder and spray - then let you know
>> how
>>> it goes.  Ron, you could have just sold me the box for
>> $15 -
>>> but you had to go and be all honest.  Thanks.
>>>
>>>
>>> --- On Tue, 2/3/09, Mike Arman
>>> <Armanmik at earthlink.net> wrote:
>>>
>>>> From: Mike Arman <Armanmik at earthlink.net>
>>>> Subject: [V8] IC cold solder joints
>>>> To: v8 at audifans.com, "Jason Wilkerson"
>>> <wilke_jb at yahoo.com>
>>>> Date: Tuesday, February 3, 2009, 10:54 AM
>>>>>
>>>>> About the IC problems - What cold solder
>> joints?
>>> do I
>>>> just need to re-solder the pins that
>>>>> connect the boards and the pins that go to
>> the
>>> plugs
>>>> on the back of the IC?  Is there something
>>>>> else to look for?  What contact enhancer,
>> and
>>> where to
>>>> get it?  Thanks.
>>>>
>>>> The pins that connect the boards are the
>> culprits.
>>>>
>>>> These boards were "wave soldered" when
>> new -
>>> if
>>>> the heat was turned up enough to solder the
>> large,
>>>> heavy parts (think "heat sink")
>> properly,
>>> the
>>>> smaller parts would be damaged. If the heat was
>> kept
>>>> low enough so the small parts weren't burnt,
>> the
>>> big
>>>> parts wouldn't solder properly because they
>>>> didn't get them hot enough. (I've seen
>> this on
>>>> other PC boards as well, not just from Audi.)
>>>>
>>>> Audi chose to keep the heat down so they had
>> working
>>> boards
>>>> for production - If I were in a cynical
>>>> mood, I'd guess they figured the cold solder
>> joint
>>>> problem would surface later, after the warranty
>>>> had expired, and then it would be a future profit
>>> center
>>>> instead of a current cost.
>>>>
>>>> Team Doorhandle at Audi (or their supplier) did
>> NOT
>>> get
>>>> this right, so alas, we get to fix it. Keeps
>>>> us off the streets and out of trouble.
>>>>
>>>> Contact enhancer can be bought at semi-reasonable
>>> prices
>>>> from your local Radio Shack (if you can
>>>> find one that is still in business, we've had
>>> about
>>>> half of them go away in this area in the last
>>>> year) or if you are feeling flush, you can get
>>>> "Stabilant 22" (evidently made of
>> powdered
>>> gold
>>>> plus
>>>> a whiff or two of pure unobtanium) at high end
>> stereo
>>>> stores.
>>>>
>>>> Best Regards,
>>>>
>>>> Mike Arman
>>>> 90V8Q, it's more than a car, it's an
>>> ADVENTURE!
>>>>
>>>> P.S. - if you ARE feeling flush these days,
>> please
>>> tell me
>>>> what you do for a living, the mortgage
>>>> business is WAY down lately . . .
>>>>
>>>>
>>>>
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>>>
>>>
>>>
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>
>
>
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