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On Mon, 24 Jul 2006 21:42:43 GMT, jerry wass <wassbiplane@tds.net>
wrote:
>clare at snyder.on.ca wrote:
>> On 23 Jul 2006 21:21:19 -0700, "abripl" <ignord_eml@hotmail.com>
>> wrote:
>>
>>
>>>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.
>>
>>
>>
>> Are you telling me that all the aircraft versions of alternators have
>> left hand threads? Or even that alternators on engines that run
>> "backwards" or have the alternator on the back of the engine(like on a
>> Renault R12) have left hand threaded rotors?
>> I am afraid I would have to dissagree. Not ALL do. Perhaps SOME.
>> On counter-rotating marine engines, both alternators are the same.
>
>Corvairs do--both the old generators and the newer alternators. some
>loc-tite goes a Loong way in these situations..Jerry
Corvair has left hand thread on alternator????? None that I have seen,
and the manual does not mention it - and the rotor is the same as any
other Delcotron.
--
Posted via a free Usenet account from http://www.teranews.com
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Re: Problem with auto alternators
