Re: About my noisy lifter

["Joseph Rae" <quattro@ptinet.net>]

I have found this as well, also I have experianced noisy lifters when the
car wants its oil changed, usally right around 2500-3000 mile, anyone else
experiance this? it has has happened on both the 4000cs quattros that I have
owned
Joe

----- Original Message -----
From: Phil Payne <quk@isham-research.demon.co.uk>
To: <rick-l@rocketmail.com>
Cc: <quattro@audifans.com>
Sent: Friday, May 07, 1999 11:12 AM
Subject: Re: About my noisy lifter


> In message <19990507151855.28642.rocketmail@attach1.rocketmail.com>
Richard J Lebens writes:
>
> > Phil Payne said to fill it with oil to the max mark.  I was skeptical
> > but figured what would it hurt and I should top off the oil anyway.  I
> > added a little less than a quart and the next time I drove it noise
> > was gone.
>
> > Not to look a gift horse in the mouth or anything, but why did this
> > work?  I thought the lifters were supplied pressurized oil from the
> > pump.  What difference could the oil level in the sump make unless it
> > was way low?
>
> I spent the next hour in the garage dancing around a pentagram covered
> only in old engine oil and blown gaskets, incanting dark secrets from
> the microfiche.
>
> Seriously, I don't know why or how it works.  I've hypothesised on things
> like the dipstick seal wearing and allowing the dipstick to sit lower,
> thus registering 'happy' on what is in fact too little oil.  German
> garages fill by quantity and then check the stick - they don't use the
> stick as the datum.
>
> The same technique also fixes 'squirrely' lifters, where the centre
> section makes a loud version of the sewing machine noise.
>
> --
>  Phil Payne
>  Phone: 0385 302803   Fax: 01536 723021
>  (The contents of this post will _NOT_ appear in the UK Newsletter.)