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Old Sep 29, 2012, 03:49 PM
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On the Series 21 McCoys, the only ones I have are two CL .19's. One has been run and the other is still NIB. Someday I hope to get around to using them in ships.

The idea of the Dykes ring is to be loose when going up and seal well after combustion. For that purpose they are "L" shaped. My guess is that running at the RPM we use them, the dykes ring probably assumes a more constant seal. In any case, they seem to not have a lot of compression when turning them over by hand but they run well.

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