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Unread 03-05-2012, 01:03
Thad House Thad House is online now
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Join Date: Feb 2011
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Dual CIMs and #25 Chain

This year was out first year using Dual CIMs for each side of our 6WD, and it has left a sour taste in our mouths. It cost us both a higher ranking in Seattle, and playing in the eliminations on Archimedes. At the beginning of the season we were using 25 chain with aluminum sprockets. During competition we were both shrinking the sprockets and snapping chain at both the master links and cleanly at other pins on the chain. In st louis we replaced the aluminum sprockets with steel sprockets. We worked great through thursday and most of friday, and then our last match friday we snapped a chain at the master link. Then on saturday morning one of the pins in the middle of the chain had a clean, crystalized snap. Every time it was the chain that went from the transmission to the center axle (we use a live axle system). Does anyone have an explanation on why this is happening. We did some testing and realized that Dual CIMs was needed this year to get up the ramp, but its left a really bad taste in our mouths and makes us not want to use it ever again unless we absolutely have to.
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