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Old 04-07-2019, 07:37 AM
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speedracerntrixie's Avatar
Join Date: Jun 2010
Location: Happy Valley, Oregon
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I would not run an engine of that size without the prop washer engaged onto the spindle. I think the only choice you may have is to locate/adjust prop size so that you find a prop with a thinner hub. Can you go larger diameter and less pitch? Have you contacted Moki to see if a longer spindle nut is available?