RE: Engine? noise in Audi 80

["Duff, Ian" <iduff@charter.com>]

Conventional wisdom on the list is that the valve noise you describe can
be solved by switching to a *good* synthetic motor oil, such as Mobil 1
or Red Line. Problem is immediately after starting, oil pressure builds
slowly enough that hydraulic lifters don't get a full load of oil right
away. Dino oil eventually gets fluid enough and pressurized enough to
make it to the lifters, and the noise stops. Synth oil flows better
cold, so the noise stops sooner. HTH.

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Ian Duff, 1990 Coupe quattro 20v, Red/Black

Home: New Bedford, MA, USA
Work: Charter Systems, Inc., Waltham, MA, USA
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>----------
>From: 	Mauricio A. Leon[SMTP:mleon@sun1.ece.missouri.edu]
>Sent: 	Tuesday, 10 September, 1996 09:35 AM
>To: 	quattro@coimbra.ans.net
>Subject: 	Engine? noise in Audi 80
>
>I have an Audi 80, 1992 with just over 36K and, to my surprise and
>disappointment, the engine? started to make a noise that is similar to
>a
>strong valve noise.  This clicking sound is more audible when the
>engine
>is cool, is not always related to the engine RPM, and is more notorious
>after the gas pedal is suddenly released.
>
>I will profoundly thank any and all opinions concerning the origin,
>test, and solution to this -expensive sounding- noise.
>
>p.s. have not noticed any engine performance change, and always used 91
>or better gas.
>