Oil in the coolant

[Bernie Benz]

An old Audi wive’s tail!  Why not?  Would have prevented his problem.

Bernie


On Apr 17, 2009, at 8:05 AM, Austin Calise wrote:

> Bernie, the metal HG is not reusable. Also you should never use any  
> type sealing compound on the HG.
>
> --- On Fri, 4/17/09, Bernie Benz <b.benz at charter.net> wrote:
> From: Bernie Benz <b.benz at charter.net>
> Subject: Re: Oil in the coolant
> To: "P. A." <sleepyq2227 at gmail.com>
> Cc: "200q20V mailing list" <200q20v at audifans.com>
> Date: Friday, April 17, 2009, 9:56 AM
>
> If you’re using or reusing a metal head gasket, use a thin film of Si
> caulk around the water and oil passages, both sides.
>
> Bernie
>
>
> On Apr 17, 2009, at 1:21 AM, P. A. wrote:
>
>> Thanks for the feedback. I'm afraid the head is coming off then.
>> The last
>> time the head was off was 60K ago w/ a full bottom/top end rebuild.
>> Decked
>> the head, Raceware head studs, new coolant etc. And since the  
>> turbo is
>> working fine I guess the head gasket remains the likely culprit.
>> Thanks,
>> Patrick
>>
>> On Thu, Apr 16, 2009 at 4:41 PM, Austin Calise
>> <yoda_audi at yahoo.com> wrote:
>>
>>> Patrick, the only other way coolant could mix with oil is if the
>>> turbo
>>> center housing water jacket cracked. Did you flush the cooling
>>> system good
>>> after you last rebuild?
>>> It's probably a bad HG/warped head. Was the head resurfaced and
>>> the block
>>> cleaned well before assembly? Might consider getting some ARP head
>>> studs so
>>> you don't have to buy new head bolts again.
>>>         HTH's Austin
>>>
>>> --- On Thu, 4/16/09, P. A. <sleepyq2227 at gmail.com> wrote:
>>> From: P. A. <sleepyq2227 at gmail.com>
>>> Subject: Oil in the coolant
>>> To: "200q20v at audifans.com List" <200q20v at audifans.com>
>>> Date: Thursday, April 16, 2009, 5:27 PM
>>>
>>> OK guys, what ways, other than a bad head gasket, can oil get into
>>> the
>>> coolant system? I have the UrS metal head gasket on the car
>>> (installed at
>>> last timing belt job) which is fairly bullet proof from what I
>>> hear from
>>> the
>>> UrS guys. But I've got oil floating in my coolant reservoir and am
>
>>> trying
>>> to
>>> think of all the other ways that oil can get into the system.
>>> Could a bad
>>> seal/bearing in the turbo allow it's cooling water to get into the
>
>>> oil?
>>> Thanks for any ideas of what else to consider before I pull the  
>>> head.
>>> Patrick
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