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Sticking, clicking valve lifters
In message <Pine.A188.8.131.520312094324.89424Efirstname.lastname@example.org> "Louis A. Mulieri" writes:
> When I bought my 5000cstq my prebuy check mechanic told me that clicking
> valve lifters were 'normal' for audis. Not to worry. So I haven't but
> the recent thread has got me started. Two questions:(1) how loud before I
> start to worry; and (2) do I have solid or hydraulic lifters?
Assuming you have hydraulic lifters:
a) Check oil level.
b) Start engine and wait until radiator fan runs.
c) Raise rpm to 2500 for two minutes.
If you can still hear the lifters, one or more needs to be replaced.
> Another recent post on getting the underside washed, someone, I
> think Phil, said that there is a negative pressure in crankcase and that
> this can pull in water instead of air. Is this true of my model as well?
True of all injection models. The ban on washing the engine is only when
the motor is running. With the motor off, there should be no problem.
Committee Member, UK Audi [ur-]quattro Owners Club