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lycoming 0-290 vaccuum pump gear

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41luscombe

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Joined
Jan 19, 2015
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Hi all. I have Lycoming o-290-3 and it has a pad and plug right now for the vaccuum pump and i need to install a gear the parts book dosent show a good illustration of the gear. I have a extra gear off of a o-235 and wondered if it were the same. Hopefully somebody has a little insite on the subject.
Thanks
Alex
 

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