My name is Jose and I have an Extra 300 XS 1/4 scale powered with a
Zenoah G62. My problem is that the vibrations of this engine are very
high. I changed some propellers but I haven´t any solution.
Please, can you help me?...
Thank you
Is the vibration at idle? If so, you probably have it too rich. They
will really run rough if the idle needle is too rich. My G45 ran rough
at idle until I leaned it out a bit.
John VB
1. refer to Giant Scale Tips [site presently down so using archive machine]
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formatting link
"Prop Balancing By Joe Wagner "
quote
"This is what Don Garry found he could take advantage of. By installing a
purposely-out-of-balance prop on some of his engines, with the heavier blade
pointing "down" while the crankpin was at TDC, Don obtained noticeably
smoother running -- and enhanced performance! " the rest makes good reading
and may solve your problem.
2. Are you using a solid mount of a vibration damping mount such as those by
J'Tec?
Regards
Alan T.
Alan's Hobby, Model & RC Web Links
"Prop Balancing By Joe Wagner "
This is an old trick (heavy blad opposite the crankpin) that I learned back
in the early sixties and used successfully since my control line days.
Ed Cregger
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