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Lycoming Engine oil leak

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rick440

Adventure One
Joined
Jul 6, 2012
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On my O-320-D3G, I discovered an oil leak coming out of the 1/2 inch bolt/nut on the pilot side of the engine. There are two of these that are in front of the #2 cylinder. The lower one is dropping some oil on the starter and then atomizes the oil spray onto the alternator and muffler shroud.

The 1/2 stud comes out of the engine block in which there is a spacer and then the bolt. Has anyone run into an oil leak there....and if so, what the repair options are? Photos below.

Much thanks!

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