Hi Ed,
You have the "original" ERCO spinner shown in the Parts Manual. Many
of these have probably survived all these years, likely because they
have not been subjected to enough of those specific vibration
frequencies that bring about this type of failure.
Metal prop vibration is different than wood prop vibration. Their
spinners, attaching hardware and prop bolt torques also differ. The
early "taper shaft" engines may have different vibration
characteristics from later "flange shaft examples (like yours).
For reasons too numerous to list, the little Continentals demonstrate
operational "roughness" over a very wide range. Independent of that,
the ability of engine mount rubber bushings to dampen engine vibrations
vary with age, composition and upper and lower torque applied.
Vibration-induced metal fatigue is an extremely complex subject in
which there are few prevailing constants.
So long as there are no cracks each annual, I wouldn't be concerned at
all with your arrangement.
Regards,
William R. Bayne
.____|-(o)-|____.
(Copyright 2010)
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On Jun 6, 2010, at 17:53, [email protected] wrote:
Sorry for the error.
I do have a back plate on my spinner .
but I do not have a front plate.
Is there anyonr else with this set up?
Ed
