American V8's - Curious 5

[ryandias]

The mechanical drive fans on american v8's are never symetrical. They have equally spaced blades except for one or two locations that are oddly spaced. Whats up with that?

Just a Friday afternoon off in the clouds kinda question.

Any suggestions?

I have come up with;
balancing for other items (viscous clutch)
maybe the designer had really thick glasses?
fluid flow dynamics?? (not sure what might require this)

 

[sreid]

Re: Fan Balance. Since the fan is in a single plane, if the fan is in static balance it will be in dynamic balance.