RE: Advice needed : The T in the Q has eaten ! =>Debris in accordeonhose, - Any BTDTs to comment on usual enginedamage ?

["Buchholz, Steven" <Steven.Buchholz@kla-tencor.com>]

Well, I found a similar surprise when I pulled the inlet boot off my K26 on
the ur-q many years back.  In my case it appeared that something had made
its way through the intake tract and into the compressor.  

I ended up having to pull the head because of the broken extractor in the
rearmost stud, so I had a chance to evaluate the total damage.  I found no
effect in the head or even the intake manifold.  There were metal filings in
the boost hose to the IC and the IC itself, but in my case the light oil
film in these components seemed to do the job for limiting the damage.  I do
hope that your experience is the same.  

I guess my question would be ... are you sure that the shiny metal pieces in
the oil actually came from the compressor wheel?  You may actually have 2
problems that you are dealing with ...

... I've got my fingers crossed for you ... :)
Steve Buchholz
San Jose, CA (USA)

> -----Original Message-----
> From: thyrsted2@olsy.dk [mailto:thyrsted2@olsy.dk]
> Sent: Wednesday, August 11, 1999 11:56 AM
> To: Quattropedia
> Subject: Advice needed : The T in the Q has eaten ! =>Debris in
> accordeonhose, - Any BTDTs to comment on usual enginedamage ?
> 
> 
> Having the accordeonhose off for other reasons, i found lots 
> of tiny nice
> shiny metalpieces in the oil.
> 
> This unfotunate incident might have happened within the last 
> 3-6 months,
> wich is when i last have had the accordeonhose off.
> 
> The impeller is torn on the cold side inlet, defenitely a sign of
> metal-metal impact - but it's also destroyed around the impeller axle
> clearly indicating that this K26 has been eating something 
> unhealthy for my
> engine..
> Maybe the unexplainable variations in performance, i've been 
> having in the
> past 12-18 months, could be caused by whatever was holding 
> back the turbo.
> 
> Can anyone point me to a link, where i can see the cold inlet 
> side of a K26,
> just to give me an idea of exactly how much metal my engine 
> has eaten ?
> 
> Don't recall having the puff-puff at startup anytime, allthough i've
> specifically looked for it occasionally, so maybe the bearing 
> isn't gone
> (yet).
> 
> Rocking the impelleraxle while turning it, will result in 
> what feels like
> impact btw. impeller and housing.
> Up-down play doesn't look to be more than 1-2mm, so maybe 
> there still is
> some debris inside the compresserhousing.
> 
> I do not want to start fixing the engine until i know what(else) is
> destroyed, - because it might be more economical to go for a 
> replacement
> engine.
> BUT, -
> my engine is 182hp JY type with MAC06A, single knock, no cat.
> It also has some kind of pure mechanical gadget, probably 
> controlled by
> unthrottled air, connecting the EM to the IM..
> (probably some form of emission-control , and if anyone can 
> clarify this -
> please do..)
> Made from '84-'87 for Swiss and Austria only.
> So any non-JY replacement engine would probably demand ECU 
> change maybe even
> another Fuel-dist/pressure .....
> 
> ANY advice, experiences or whatever regarding this, will be greatly
> appreciated.
> 
> Kenn Thyrsted
> '87 200TQavant  s*cking mega buck$
> 
> 
> 
> 
>