[T3] Re: [T3] Diagnostic help: Loud popping...Àvalve problem

[Jim Adney <jadney@vwtype3.org>]

On 8 Jul 2002, at 9:13, ICBM Webmaster wrote:

> When we leave the tunnel there's suddenly this loud popping sound
> coming from the exhaust.  I mean LOUD, like backfiring.  I have
> acceleration, but it's not as powerful as normal now, and there's the
> backfiring.  The engine backfires at idle as well.  Only under very, very
> slight throttle does the backfiring stop (from what I can hear). 

If the valve lash is correct, the seats can't have moved and the valves can't
have stretched. Any possibility that you just blew out a loose piece of weld on
the exhaust system?

-
Jim Adney
jadney@vwtype3.org
Madison, WI 53711-3054
USA

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