Tat..Tat Noise in Engine

[Grant Lenahan]

Why change them at all? I just let 'em make noise.
Went on happily for >200k miles (many years ago).
Does this lead to something bad?

Grant
On Jul 3, 2006, at 8:24 PM, Peter Golledge wrote:

> Max,
>
> If the lifters have never been replaced then it is very likely they 
> are the
> cause.  Replace the whole lot otherwise you will be pulling the 
> camshaft
> again.  You should be changing the timing belt at 300,000 km so I 
> would do
> it then or do the timing belt early.  Since you have to mess with the 
> water
> pump/belt to get the camshaft out you might as well do the whole lot 
> at the
> same time.
>
> -----Original Message-----
> From: quattro-bounces at audifans.com 
> [mailto:quattro-bounces at audifans.com] On
> Behalf Of Max Hoepli
> Sent: Monday, July 03, 2006 5:28 PM
> To: urq at pacbell.net
> Cc: audi s-cars list; Quattro at AudiFans; 200q20v at audifans.com
> Subject: Tat..Tat Noise in Engine
>
> 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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