[V8] Update: 93 4.2 oil leak fixed!!!
Ingo Rautenberg
i.rautenberg at waratap.com
Tue Nov 21 15:43:54 EST 2006
Yes and no. They are reuseable ONCE. But unless you've had the car
since it was new or are sure there hasn't been any previous headwork,
who's to say if these bolts haven't already been reused?
Ingo
On Nov 21, 2006, at 2:39 PM, Paul Jager wrote:
> I read, mind you a translation from German, that these TTY head
> bolts are in
> fact reusable. It was a post on the der Audi V8er site.
>
> Anyway we gave my 93 4.2 bolts about a 1/8?? turn (Morgan our tech
> did this)
> a couple of months ago and it did in fact slow my oil leak a good
> 50%. Back
> to manageable again. I use a 5W30 oil as well to keep the oil
> pressure down
> and this helped too.
>
> Once a gasket has a leak path established, concensus is it will
> tend to keep
> leaking no matter what the compression on it is. But in this case the
> increased clamp force has reduced the flow, which is what I was
> looking for.
> I want to postpone any head gasket work perhaps until the next T
> belt change
> is due, which will be a few years yet.
>
> Paul Jager
> www.jageng.com/garage9
>
>
>
>
> -----Original Message-----
> From: v8-bounces at audifans.com [mailto:v8-bounces at audifans.com]On
> Behalf
> Of Ingo Rautenberg
> Sent: November 21, 2006 8:16 AM
> To: Jason Wilkerson
> Cc: V8 list
> Subject: Re: [V8] Update: 93 4.2 oil leak fixed!!!
>
>
> Hmm. I think they ARE Torque-to-yield bolts. Designed specifically
> so for modern aluminum engines, where the expansion rate is 2x those
> of cast iron. Which is why you don't want to re-use them. Or am I
> mistaken?
>
> Ingo
>
> On Nov 21, 2006, at 10:07 AM, Jason Wilkerson wrote:
>
>> Without question - replace the head gaskets, keep the head bolts. If
>> there is any question at all on the condition of the mating
>> surfaces, have
>> the head and block surfaced before putting it back together. If
>> you want
>> to use new head bolts you can, but you shouldn't have to on this
>> car, as
>> the bolts are not torqued to yield.
>>
>> Good Luck,
>> jason
>>
>>
>>
>>
>> _____________________________________________________________________
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