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You know me by now I always have questions. When checking the alignment of a Mk.III primary I noticed this, see video. Video failed so I'll explain.. When I placed the bare clutch hub on the transmission shaft it rotated, on it's own 180 degrees. After several spins it returned to the same spot. Definitely out of balance by quite a bit. If you were building an improved model, wouldn't you check rotating parts for balance? I know it's not a high rpm part, but come on! I put the steel plates in clutch hub, to see if that made any difference, and they didn't. The hub bearing is clean with light oil. Has anyone else noticed this? In an attempt to correct the balance I used a ball end mill on backside, It slowed the rotation but not completely corrected the balance problem, could mill more if it is safe?[ATTACH]112121[/ATTACH]
You know me by now I always have questions. When checking the alignment of a Mk.III primary I noticed this, see video. Video failed so I'll explain.. When I placed the bare clutch hub on the transmission shaft it rotated, on it's own 180 degrees. After several spins it returned to the same spot. Definitely out of balance by quite a bit. If you were building an improved model, wouldn't you check rotating parts for balance? I know it's not a high rpm part, but come on! I put the steel plates in clutch hub, to see if that made any difference, and they didn't. The hub bearing is clean with light oil. Has anyone else noticed this? In an attempt to correct the balance I used a ball end mill on backside, It slowed the rotation but not completely corrected the balance problem, could mill more if it is safe?
[ATTACH]112121[/ATTACH]
