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Re: More than the usual
To: AUDI
>We'll, ya know how we're familiar with at Audi I-5 start-up noise? Well,
>it seems that the 4000 CSQ has gone a step further. One cylinder seems to
>be making a very loud noise at startup, and continues for about 15
minutes.
>I suspect one of the hydraulic lifters is bad. Does this sound familiar
to
>anyone?
My 4000 Q too has the usual "ticking" at startup. In the winter it is
louder and lasts longer at startup. It also appears directly related to
how full the oil is. When I started auto-xing the car, I would shut it off
after a run. When I started it backup for my next run, I would get the
loudest clatter ever, It would usually go away in a few minutes. I though
I had a bad lifter. Then I started useing 20W50 oil, and making sure the
level is FULL, and then it wasn't as bad. Since then I have started using
5W50 syntek and it's better yet, or even nonexistant. Anyway, if it goes
away after a bit your probably ok. Mine now has 162k and I still haven't
replaced any lifters.
>If it is indeed a lifter, I was wondering how much of an undertaking it is
>to change it out? How much $$$? I suspect that the cam needs to be
>removed, but since I haven't bought a manual for it yet (as a good one
>doesn't seem to exist), I was just wondering about the intricacy of such a
>task.
I've heard you take out the cam, and they're pretty easy to change, and not
to expensive for the parts. Something a weekend warior should be able to
do. ---JCG.