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RE: was cambelt/lifter noise solution



Gents

I do have a an oil pressure gauge on the car and hi rpm it reads 5 bar solid
at idle when the oil is at 100 deg or above I have 2 bar, maybe switching to
a slightly heavier oil 10w40 synthetic instead of the 5w40 I use at the
moment will have a similar effect. Who knows, I have no probs at the moment.

Iain

-----Original Message-----
From:	owner-quattro@audifans.com [mailto:owner-quattro@audifans.com] On
Behalf Of Stephen Bigelow
Sent:	19 November 1999 04:14
To:	Alexander van Gerbig; C1J1Miller@aol.com; quattro@audifans.com
Cc:	sbabbar@iris.nyit.edu
Subject:	Re: was cambelt/lifter noise solution


-----Original Message-----
From: Alexander van Gerbig <Audi_80@email.msn.com>
>problem with frothing at high rpms.  If these high rpms are sustained for
>any period of time the moving crankshaft bits don't get properly lubricated
>because of the froth, don't ask me to remember why

It happens because the oil pump starts sucking froth, and not oil. Too much
air to maintain correct pressure.