Problem with auto alternators

Problem with auto alternators

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Subject Author Date
Problem with auto alternators abripl 07-24-2006
One known problem is that aircraft engines turn CCW looking at the prop
but auto alternators have cooling fins optimized for CW. But thats not
apparently as much a problem as the pulley nut potentially comming
loose. For CW rotation the engine torque will tend to tighten the
pulley nut but for CCW it will tend to loosen it. It happened to me
today )on the ground) after 60 hours of use and the alternator was not
charging just spinning the pulley. Make sure you check your pulley nut
tightness ocassionally if you are using an auto alternator.



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