[s-cars] Borescope'ing the oil pick-up

Fri Sep 17 10:05:02 PDT 2010

Just called 034 and they no longer stock them. Special order by request
only, from Germany, weeks away..

I was told even their big HP cars, like Javads use the OE bearings, but did
not confirm if the special coating as subbed out, factory, or otherwise..

If I am looking at OE AAN rod bearings, I would rather support my local shop
and get them in half the time..

-brian

On Fri, Sep 17, 2010 at 10:58 AM, <djdawson2 at aol.com> wrote:

>
>  Yep... those would be the ones.
>
>
>  -----Original Message-----
> From: brian hoeft <qweblog at gmail.com>
> To: djdawson2 at aol.com
> Cc: tim.dahm at gmail.com; s-car-list at audifans.com
> Sent: Fri, Sep 17, 2010 6:53 am
> Subject: Re: [s-cars] Borescope'ing the oil pick-up
>
>  Dave, you're referring to these here<http://www.034motorsport.com/engine-components-audi-i5-rod-bearings-rs2-audi-i5-spec-p-498.html>,
> correct?
>
> I already have red and green Plastigage strips..
>
> I figured it would be prudent to drop the pan first, being I bought this
> longblock used and dont know it's history, but I would love to get a jump on
> parts and keep this a one day job.
>
> thanks for your help, Brian
>
>
>
> On Thu, Sep 16, 2010 at 4:58 PM, <djdawson2 at aol.com> wrote:
>
>>  Call 034.  You want the bearings with the hardened upper shell.  The
>> measurements won't matter... you need the standard size if replacing them
>> is even an option.
>>
>> I say this with certainty because the Audi cranks are so hard, grinding
>> them to an undersize is virtually not doable.
>>
>> When you replace the bearings, take measurements with plasti-gauge.  It
>> will either come within spec, or it won't if the rod or crank has been
>> damaged.  Make a good visual inspection of the crank surface... run a penny
>> across the bearing surface to feel for marring.
>>
>> The cranks are so tough that I doubt there will be an issue there... the
>> question will be the rod end.
>>
>> You might want to start a new thread if you're going to do this work...
>> happy to answer questions along the way if you have them.  This may sound
>> like a huge job, but it really isn't bad at all.  You should be able to be
>> in and out of there in a day... I did this about a year ago, and got it done
>> in about 5 hours from start to running again.
>>
>>
>>
>>  -----Original Message-----
>> From: brian hoeft <qweblog at gmail.com>
>>   To: Tim Dahm <tim.dahm at gmail.com>
>> Cc: djdawson2 at aol.com; s-car-list at audifans.com
>> Sent: Thu, Sep 16, 2010 2:23 pm
>> Subject: Re: [s-cars] Borescope'ing the oil pick-up
>>
>>  Im a little aggravated at facing reality, but thanks none the less.
>>
>> Maybe I should start a new thread, but is there a particular bearing I
>> should start looking for? I dont have measurements yet obviously, but would
>> make sure I can get a particular manufacturers.
>>
>>
>>
>>
>>
>>
>> On Thu, Sep 16, 2010 at 4:01 PM, Tim Dahm <tim.dahm at gmail.com> wrote:
>>
>>> What Dave said..  Experienced it first hand in a SHO (Taurus
>>> rustbucket).  Rod knock most apparent when engine is at that load/no load
>>> transition.  Louder when oil is hot/thin.
>>> Stop running engine now.  If you don't want to pull anything apart to
>>> diagnose, an oil analysis will tell you the story.  In my case a dip stick
>>> inspection with a magnifying loupe showed plenty of metal in the oil.   I
>>> was able to slip new rod bearings in with the engine/crank in the car.  The
>>> new bearings just about doubled hot oil pressure at idle.  Lasted more than
>>> long enough to get rid of that car.
>>>
>>> Tim
>>> 93/94/94 S4s
>>> 91 cq
>>>
>>>   On Thu, Sep 16, 2010 at 2:19 PM, <djdawson2 at aol.com> wrote:
>>>
>>>>
>>>>  You gotta do what you gotta do.... but if it were me, I wouldn't run
>>>> that car another second if you suspect a slight rod knock.  There is an
>>>> outside chance that a bearing is starting to go, and that the crank surface
>>>> is still good, and the big end of the rod is not out of round.
>>>>
>>>> If the stars align and the above is true, you could change your rod
>>>> bearings, re-check you clearances, and be down the road for $150 and some
>>>> elbow grease.
>>>>
>>>> If you run it further, you may be pulling your engine for a rebuild.
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> -----Original Message-----
>>>> From: brian hoeft <qweblog at gmail.com>
>>>> To: djdawson2 at aol.com
>>>> Cc: fastscirocco_2000 at yahoo.com; s-car-list at audifans.com
>>>>   Sent: Thu, Sep 16, 2010 1:05 pm
>>>> Subject: Re: [s-cars] Borescope'ing the oil pick-up
>>>>
>>>>
>>>> I agree. What I figured is that things would look good in there with the
>>>> scope, meaning clean. Soo, I would then know I had to schedule down time in
>>>> my garage to get it sorted.
>>>>
>>>> Visiting someone I talk with when I get the chance, while I drain my oil
>>>> (even into a clean jug, so i can pour it back in) and dig on his fancy
>>>> tools, sounded better to me than dropping the pan and having a tied up
>>>> garage for a week, being I could delay for a week and beter schedule the
>>>> time.
>>>>
>>>> -Brian
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> On Thu, Sep 16, 2010 at 2:50 PM,  <djdawson2 at aol.com> wrote:
>>>>
>>>> OK....
>>>>
>>>> Now I really don't care about your control arm bushings, or any other
>>>> front end hardware.  You need to pull your pan, and you need to measure your
>>>> con rod clearances.  If it is in fact rod noise, you may still have a chance
>>>> of being able to sort this out with the engine still in the car.
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> -----Original Message-----
>>>> From: brian hoeft <qweblog at gmail.com>
>>>> To: djdawson2 at aol.com
>>>> Cc: fastscirocco_2000 at yahoo.com; s-car-list at audifans.com
>>>>
>>>>
>>>>
>>>> Sent: Thu, Sep 16, 2010 12:40 pm
>>>> Subject: Re: [s-cars] Borescope'ing the oil pick-up
>>>>
>>>>
>>>> //Siiiigh,
>>>>
>>>> Theres a noticable, what sounds to me like a rod knock, slightly below
>>>> and into 3k RPM..
>>>>
>>>> It doesnt happen at all when cold cold and oil pressure is steady high.
>>>> It doesnt happen under boost (at least not noticably, yet)(did I say
>>>> yet..oops) or deceleration. Once warmed and light on the throttle it is
>>>> quite apparent to me, but I did have to point it out to my friend.
>>>>
>>>> kinda wanna puke, kinda staying optimistic, but im pretty confident
>>>> Lucas and Amsoil are not the cure..
>>>>
>>>> -Brian
>>>>
>>>>
>>>>
>>>>
>>>> On Thu, Sep 16, 2010 at 1:00 PM,  <djdawson2 at aol.com> wrote:
>>>>
>>>>  No doubt your experience may have been different, but I got mine out
>>>> just pulling the front bolts.
>>>>
>>>> Back to the original issue... what makes you think your pickup might
>>>> have issues?
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> -----Original Message-----
>>>> From: brian hoeft <qweblog at gmail.com>
>>>> To: djdawson2 at aol.com
>>>> Cc: fastscirocco_2000 at yahoo.com; s-car-list at audifans.com
>>>>
>>>>
>>>>
>>>> Sent: Thu, Sep 16, 2010 10:49 am
>>>> Subject: Re: [s-cars] Borescope'ing the oil pick-up
>>>>
>>>>
>>>> Not saying remove the control arms, but break the bolts free & drop down
>>>> along with the 2 front and 2 rear sub-frame bolts.
>>>>
>>>> I thought the CA bolts went through the sub, into the body. I dont
>>>> remember getting enough play out of just dropping the front like you
>>>> suggest. Or maybe I was uncomfortable with the stress I was putting what
>>>> remained attached.
>>>>
>>>> Whatever the case, I do remember trying to be minimal about removing the
>>>> oil pan and it turning into more than just two front sub bolts to get it
>>>> out.
>>>>
>>>> -Brian
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> On Thu, Sep 16, 2010 at 12:27 AM,  <djdawson2 at aol.com> wrote:
>>>>
>>>>  I never said anything about removing your control arms...
>>>>
>>>> Seriously, you can get the oil pan out by just dropping the front of the
>>>> subframe... no need to touch the control arm points.  BTDT...
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> -----Original Message-----
>>>> From: brian hoeft <qweblog at gmail.com>
>>>>
>>>>
>>>>
>>>> To: djdawson2 at aol.com
>>>> Cc: fastscirocco_2000 at yahoo.com; s-car-list at audifans.com
>>>> Sent: Wed, Sep 15, 2010 8:41 pm
>>>> Subject: Re: [s-cars] Borescope'ing the oil pick-up
>>>>
>>>>
>>>> I know, but I just replaced the control arms and im a hardware freak.
>>>> "Always replace" may not mean always, as I remember you speaking to before,
>>>> but my policy is to replace them every other time and they've all been
>>>> re-torqued once..
>>>>
>>>> -Brian
>>>>
>>>>
>>>>
>>>>
>>>> On Wed, Sep 15, 2010 at 10:32 PM,  <djdawson2 at aol.com> wrote:
>>>>
>>>>  If you've got that sort of concern, I'd just drop the oil pan... it
>>>> isn't that rough.
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> -----Original Message-----
>>>> From: chris chambers <fastscirocco_2000 at yahoo.com>
>>>> To: brian hoeft <qweblog at gmail.com>; liSt <s-car-list at audifans.com>
>>>> Sent: Wed, Sep 15, 2010 8:07 pm
>>>> Subject: Re: [s-cars] Borescope'ing the oil pick-up
>>>>
>>>>
>>>> Brian,
>>>>
>>>> 17-3 of the AAN engine manual shows the pick up in illustration 17-303,
>>>> looks to
>>>>
>>>> be in the front to me.
>>>> Here is a link where you can download the manual in pdf format.
>>>>
>>>> http://s2-audi.co.uk/workshop/aan/aan.pdf
>>>>
>>>> HTH
>>>> Chris
>>>>
>>>>
>>>>
>>>> ________________________________
>>>> From: brian hoeft <qweblog at gmail.com>
>>>> To: liSt <s-car-list at audifans.com>
>>>> Sent: Wed, September 15, 2010 9:58:13 PM
>>>> Subject: [s-cars] Borescope'ing the oil pick-up
>>>>
>>>> Hi list,
>>>>
>>>> I am concerned that I may have a contaminated engine oil pick-up screen.
>>>>
>>>> Wondering if anyone has had any success using a borescope in the oil
>>>> pan.
>>>>
>>>> I forget, but ithought the AAN pick-up is in the front of the pan, but
>>>> forget if the baffles, however minimal, or dimensions make using a
>>>> borescope
>>>> for this task even possible, going in through the drain plug hole.
>>>>
>>>> A colleague of mine has a snap-on borescope with fancy lighting effects,
>>>> but
>>>> if it cant even contort into place, whats the point.
>>>>
>>>> Just typing to know if theres any BTDT for this scenario.
>>>>
>>>> thanks, Brian
>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> http://208.53.138.125:8068/
>>>> [blinders off&earplugs out]
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>>>>
>>>>
>>>>
>>>>
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>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
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>>>>  [blinders off&earplugs out]
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
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>>>>  [blinders off&earplugs out]
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>>>>
>>>>
>>>>
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>>>
>>>
>>
>>
>> --
>> http://208.53.138.125:8068/
>>  [blinders off&earplugs out]
>>
>
>
>
> --
> http://208.53.138.125:8068/
>  [blinders off&earplugs out]
>

-- 
http://208.53.138.125:8068/
 [blinders off&earplugs out]