Farrell wrote: >Is this a joke also? Or did I miss something. Plate bushings to stability >pinblock MC? > > No.. not pinblock MC. One of the big arguments tossed around is how / if / why the pinblock moves -- creeps over time under the tensions that are exerted on it, and how this effects the need for very good fitting with the plate...specially the plate flange. It is argued that because the fulcrum of the pins is moved upwards and onto the plate via the bushings when these are used, that the requirement for exact pinblock/ flange fitting is not so critical. A good deal more arguementation gets tossed in on both sides. As far as I can see the main arguementations for or against the use of bushings goes along these lines. Most of the rest seems a bit periphial IMHO. Lots of stuff on this in the archieves... I'm sure you are pretty familiar with most of it Terry. Cheers RicB
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