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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 ------------------------------------------------ To unsubscribe, E-mail to: <type3-off@vwtype3.org> For more help, see http://vwtype3.org/list/