Alie,

If I read the post correctly the vibration is present despite having the
shafts and props repaired after the prop strike???

If not, have them checked. If so, the work may not have been done
correctly. It's also just possible the transmission suffered some damage to
the input shaft bearing or other internal parts.

You should, for the purpose of alignment and balancing, consider the engine,
transmission, shaft, log, strut, and prop as a monolithic structure. For
perfect running all the pieces must be in agreement/harmony.

Good luck.

Butch
"Dag Sunde" wrote in message
...
wrote in message
oups.com...
check the prop that hit something. It may be a little bent.


If it hit something, take it off and have it rebalanced/repaired by
a professional before it breaks his bearings, or worse.

--
Dag.