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My Lycoming 340 (not a misprint) crankshaft broke at a repaired rod
journal. The rebuilder told me the worked looked excellent and the
magniflux check was good. It failed shortly after takeoff 208 hours later.
The play between the front three quarters and rear quarter of the
crankshaft (rear main failed) threw the timing off so much there was no
power. When turning the prop after the accident the valves and mags
operated but the timing was way off.

Rusty

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Please send your photos and drawings to marvkaye@olsusa.com.