Reply to a forwarded message, from
Klaus Dietrich <Klaus.Dietrich@oracle.com>
************************************************
John,
did you check that all three blades are in the same vertical plane? You can
easily
check by turning the prop by hand (with the spark
plugs removed, plane fixed on ground) and checking the distance from the blades
to something fixed just in front of the blade when
it moves downwards. Any differenece between the blades can be corrected by
putting
aluminium or plastic sheet shims between the
propeller hub and the enginge.
Did this on mine and drastically reduced the vibration level. I'm also using the
NSI hub.
Would also strongly suggest to have the overload clutch installed. This is not
against vibration, but will protect the engine in
case of a prop strike....
BTW do you know if NSI are still in business? WOuld like to order some spare
blades...just
in case.
Klaus (nr 132)
|