Low boost/lack of power MC2-engine (MC dual knock)

[LL - NY]

My lower IC hose acted this way, when the thick rubber finally got pliable,
I lost boost (it was actually ripped nearly 60% the circumference by the
time I found it, I found it by finding the oil stain).

LL - NY

On Mon, Mar 16, 2009 at 4:20 PM, <jlagnese at massed.net> wrote:

> One thought came to me just after the delete key had
> struck again. Once the engine heats up parts expand
> and sometimes a leak can become more noticeable.(or
> less)
> ---- Original message ----
>
>  Date: Mon, 16 Mar 2009 16:15:30 -0400
>  From: George Selby <gselby4x4 at earthlink.net>
>  Subject: Re: Low boost/lack of power MC2-engine
>  (MC dual knock)
>   To: quattro at audifans.com
>  >At 03:00 PM 3/16/2009, you wrote:
>  >>I agree that the problem sounds related to a
>  turboleak.
>  >>But lets say it is a turboleak. How can a
>  turboleak only occur
>  >>after 30-60 minutes of driving? And if I turn
>  the engine off and let
>  >>it sit for a while, boost is again up to what it
>  should be, 1.4 bar.
>  >>I mean.. a periodic turboleak? Even plausible?
>  >
>  >Yes it's possible. Some bits are attached to the
>  car, and some to
>  >the engine (The fuel distributor and intercooler
>  are attached to the
>  >car, while the turbo and throttle body are
>  attached to the
>  >engine.) The engine moves around while you are
>  driving, which can
>  >open and close off tears in the tubing between
>  the aforementioned
>  >items) and cause seemingly random leaks in the
>  tubing. Generally,
>  >problems start out occurring on a slight basis,
>  then start happening
>  >more and more often, until finally the car won't
>  start because they
>  >are so bad. I had this happen on both my 89 80
>  and my 90 200.
>  >
>  >One other thing I'll mention as a possibility, I
>  was having a problem
>  >with random power loss on my 200 Turbo, and on a
>  lark changed the
>  >fuel pump relay. Problem solved, until the intake
>  rubber elbow
>  >coming off the turbo tore, and presented similar
>  symptoms. Fixed
>  >that a about a month ago, and now I'm back to
>  full power all the time.
>  >
>  >George Selby
>  >
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