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Peter, I know that in the Alons, at least, that is a very common place to have a crack. Both my exhaust stacks have been welded, so take heart! It's nothing you did. Because I have two welded stacks, I also am concerned about CO in the cockpit. It can be very difficult to detect small leaks in a weld. So, rather than fret about it, I bought an AIM 935 low-level electronic CO detector. AvFlash has an excellent article on CO detectors as http://www.avweb.com/articles/codetect.html. You should read this; if you're using one of the orange-spot detectors like a Dead Stop, it's probably not doing much. First of all, they're pretty much useless unless you change them every 30 days -- NOT the 90 days the manufacturer claims. They're also incredibly sensitive to cleansers, sunlight, and a bunch of other stuff. Plus, if you change them every 30 days, the AIM 935 is actually cheaper to use. The AIM lasts for three years and costs about $80 shipped. I believe that the website to order one online is included in the article; I ordered mine via the web and am very happy with it. The only gotcha is that it's a little big. I attached mine to the carpet on the floor with Velcro so that I can detach it and take it along in rentals as well. Hope it helps! Leslie Holbrook Alon A2 N161LH (Flying Colors #1) Chester, CT 3B9 __________________________________________________________________________ __ _________ Get more from the Web. FREE MSN Explorer download : http://explorer.msn.com --------------------------------- to unsubscribe send mailto:[EMAIL PROTECTED] ___________________________________________________________ T O P I C A http://www.topica.com/t/17 Newsletters, Tips and Discussions on Your Favorite Topics
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