Tat..Tat Noise in Engine

[Max Hoepli]

I think the issue has been answered. I mentioned all related issues.
Are the valve lifters making such a noise because of film deposit on valve
stems? The valves are sticking. Think I'll just use highest octane
available. Have been advised by mechanics that an engine with 285,000 km.
can take medium alternately with super.

Does Sunoco have RON higher than 91?

Generally use Esso RON 91.

Max


----- Original Message ----- 
From: "Grant Lenahan" <glenahan at fastmail.fm>
To: "Max Hoepli" <mhoepli at vif.com>
Cc: "audi s-cars list" <s-car-list at audifans.com>; <urq at pacbell.net>;
<200q20v at audifans.com>; "Quattro at AudiFans" <quattro at audifans.com>
Sent: 03, July 2006 19:31
Subject: Re: Tat..Tat Noise in Engine


> Wow - so many unrelated issues to address!
>
> 1.) My first guess would be valve lifters, and if so, its no big deal.
> 2.) 89 octane is too low for a -any- turbo car
> 3.) rislone probably wont help anything unless your engine has been
> gunked up.   I think you need to explain what you are thinking, unless
> everyone but me knows already.....
>
> Grant
> On Jul 3, 2006, at 7:27 PM, Max Hoepli wrote:
>
> > I have a MC engine in Type 44 Quattro, with turbo charger  with
> > 285,000 km. when idling it makes a
> > tat...tat....tat......tat.......tat...noise from top part of engine.
> > When inside of car noise is not heard. Engine never overheats, starts
> > immediately. Sometimes there is white smoke coming out of exhaust just
> > after starting. I alternately fill tank with RON 89 and 91. What could
> > problem be?...if any? Gasoline may be issue. Could Rislone additive
> > help?
> >
> >
> > Max
> > _______________________________________________
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> > quattro at audifans.com
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