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Securing prop

Old 02-27-2014, 08:43 AM
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chopper man
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Default Securing prop

Any tricks to tightening down a prop when the back plate spins when putting a wrench on the prop nut? Already ruffed of the back of the prop. Thanks

Gene
Old 02-27-2014, 12:05 PM
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JohnBuckner
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Yes, a new prop that has not been properly reamed with a prop reamer will often do this. The same applies to spinner back plates that are not a free sliding fit will contribute also.

For example a new APC prop and many others in the 1/4 inch shaft size will not completely slide on and what the fellows will do is start screwing the prop on instead of reaming it. When you do this and try to depend on the prop nut to tighten the prop aginst the prop bushing then it cannot acheve enough pressure aginst the bushing to stop the spinning.

Ream the prop with an appropriate prop reamer and the problem will go away.

John

Last edited by JohnBuckner; 02-27-2014 at 12:07 PM.
Old 02-28-2014, 09:40 PM
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ho2zoo
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Glue 2 small pieces of sandpaper back to back, punch a hole in the center, and put that between the prop and the back plate.
Old 03-01-2014, 02:24 PM
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Lone Star Charles
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Are you sure that the prop nut has not bottomed out on the threaded portion of the prop shaft?
Old 03-01-2014, 05:12 PM
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Originally Posted by Lone Star Charles View Post
Are you sure that the prop nut has not bottomed out on the threaded portion of the prop shaft?
That's exactly what it was. Ya just have to be smarter than the equipment that you operate.
Thanks for the help.

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