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Old 10-16-2017, 02:05 AM   #14
kapnd
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City: hawaii
Vessel Name: #31
Vessel Model: ex-Navy MUB 50 fish/cruise
Join Date: Aug 2013
Posts: 873
Quote:
Originally Posted by AKDoug View Post
My hull is only 30' and has a fully encapsulated lead ballast under the engine and almost all the way back to the stern tune, so I am guessing alignment quite probably is an issue rather than hull flex. You wouldn't think a hull that short and stiff would flex much...

Being a true double ender the prop is set forward of the rudder as well, so it should be really stiff. Propeller shaft is only about 6'-7' long, with the engine midship behind the pilot house. I am going to have alignment checked before going back in the water for sure!


Your shaft bearing tube is not aligned with the shaft.
Either the hull has changed since it was built, or more likely, it was not installed correctly from the getgo.
Just being a double ender with a bunch of lead in the keel does not insure that things cannot be be out of kilter.
Fiberglass shrinks, wood swells, metals corrode, and shit happens!
Just replacing the bearing has already proven that there is a problem, now compounded with a worn shaft.
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