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Lycoming O-320 sump conversion

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Dennis Flamini

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The engine is getting closer to the front of the biplane. i need advice on converting from the early style sump with pickup tube bolted to the accy case to the newer sump with built in plumbing. Is there a service letter to do it? Looks like removing the plug in the bottom of the accy case and plugging the pickup tube hole would do it.
Dennis in Chcago

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Edited by: flamini2
 

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