From: "Walter" <Whalt@xxxx>
Reply-To: dmcnews@xxxxxxxxxxx
To: <dmcnews@xxxxxxxxxxx>
Subject: [DML] lasagna heat shield
Date: Fri, 29 Dec 2000 22:44:35 -0500
What causes a muffler heat shield to wrinkle and warp to the point that it
gets cut up in the belts and pulleys?
The owner thinks this is due the effects of moisture from storing the car
for so many years under a carport. He thinks it got wet and stayed wet for
too long. I'm wondering if this could have been caused by the exhaust
system from over-heating. The car has 19K miles on it and the owner says
that the muffler has been replaced because it 'went bad'.
He quit driving the car several months ago because it was 'flooding'.
Based on this information, is it likely that the engine was running too
rich
and over-heated the muffler? And if this is the case, what can cause an
engine to do this? A bad control pressure regulator?
Also, what is the best replacement for this heat shield? Are the
replacements available made of asbestos?
Thanks,
Walt Tampa, FL
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