RE: holes in the muffler

["Colli, Anthony G" <Anthony.Colli@xxxxxxx>]

When I was a much younger and had a had a girl friend that lived 100 miles
away, this exact scenario happened to me. On A Friday night after work at the
garage it was time to work on my car, a '75 Alfetta Sedan. The car was
completely stock, but I installed a set of euro headers and euro exhaust
system. I did not adjust the fuel mixture. Later that night, out on the
highway north Albany NY I burned a valve. I had always chalked it up to a
possible lean mixture with improved breathing that burned my valve.

-Anthony
Vermont

-----Original Message-----
From: Overly,Edward A. [mailto:eoverly@domain.elided]
Sent: Tuesday, April 01, 2003 1:32 PM
To: alfa-digest@domain.elided
Subject: holes in the muffler


My spider needs a new exhaust system.  I was reading Click and Clack this
weekend
and they were saying holes in the muffler could cause the valves to burn
due to not enough
back pressure:

http://cartalk.cars.com/Columns/latest.html

This got me to worrying about free flow exhausts and how extractor exhausts
work.
I suppose as long as the closest muffler to the engine is in good shape you
are ok-
i.e., you will have sufficient back pressure.
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