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Re: re:Hydraulic Lifters
> Merrill Hoekstra wrote:
> > Here is my question: how serious is that clickety-clack sound at
> > startup? Do you just live with this? Do you change the oil
> > Are the valves adjustable?
> If the car has not been run for a couple of days it is possible that the
> hydraulic lifters have leaked down to the point where there is lifter
> noise at start up. There is one thing I read that can cause this to be
> more annoying. I read in the tech notes (service bulletins) that there
> is a valve in the oil return from the lifters, and if this valve fails it
> can cause excessive lifter noise on start up.
Both of my '87 5000s start getting noisy on start-up at approx. 2000 miles
after the last oil change; as soon as I change the oil-and-filter, however,
it goes away. My '85 4000s autocross car used to get noisy at every event
but would quite down by the time I drove it home. My '91 100 is quiet all
the time (of course, it only has 33k miles on it, which may have something
to do with this).
/| |_| |> | - |> |_| |> | (AudiDudi@delphi.com)
1981 4000; 1985 4000s; 1987 5000 & 5000W; 1991 100