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Old 09-01-2016, 05:52 PM   #10
Ski in NC
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City: Wilmington, NC
Country: USA
Vessel Name: Louisa
Vessel Model: Custom Built 38
Join Date: Jan 2014
Posts: 4,673
Check the alignment. If all is right with the joint, the fasteners will remain tight even without a lockwasher. Also make sure the mating flange faces are clean clean clean to grey metal. If rust is between flanges, as it works out the tension in the bolts will be lost.
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