<VV> re;flipping belts

[tom zimmermann]

Warren,when you said the belt flips on 1st gear acceleration,is the belt flipping when under power,or when rpm suddenly drops when upshifting? The centrifugal force of the belt ,and the sudden change in which side all of the pulleys are 'grabbing' the belt,aggravated by the rotating mass of the 3 pulleys,fan,**and alternator** ,are the combined causes for belt unseating...with the design,there is a point where *nothing* will stop it from comming off--'an object in motion will tend to stay in motion',like throwing a baseball..there's a point where you just can't hang on to it in an arcing motion...everybody seems to be focusing on the fan,but the alternator,with it's heavy armature,would seem to be the major culprit here...there should be a point where an increase in fan+ alt speed is higher than the car's needs;;mabe a viscus drive,governed by centrifugal weights at* the crankshaft * to keep the belt speed in the design limits would be the answer,or modifying the fan and alt pulleys
 to 'uncouple' at the rpm change,allowing them to over-run and 'freewheel' until everything catches up at a lower rpm...the alt could be turned, driven separately from an A/C pulley to isolate that load,then deal with the fan by itself...

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