Narrative:

Post maintenance test flight on J3 cub with newly overhauled engine.after takeoff; engine oil pressure dropped to 0. Knowing the oil pressure probe was working and calibrated; I knew the engine actually had dropped oil pressure. I shut down the engine for fear of engine seizure and performed an uneventful engine-out landing at ZZZ.it was found that two of the components in the engine were out of tolerance and not overhauled.

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Original NASA ASRS Text

Title: J3 Cub pilot reported a loss of oil pressure that resulted in an engine-out landing.

Narrative: Post Maintenance test flight on J3 Cub with newly overhauled engine.After takeoff; engine oil pressure dropped to 0. Knowing the oil pressure probe was working and calibrated; I knew the engine actually had dropped oil pressure. I shut down the engine for fear of engine seizure and performed an uneventful engine-out landing at ZZZ.It was found that two of the components in the engine were out of tolerance and not overhauled.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.