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508 issue |
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Jack Naglieri
Sub Lieutenant Joined: 28 June 2020 Location: Annapolis, MD Status: Offline Points: 15 |
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Posted: 18 December 2020 at 13:54 |
My 508 has a pronounced and aggressive pull to starboard when motoring. If I let go of the helm for a second the boat begins to turn and the rate of turn accelerates dramatically.
any thoughts are appreciated be well Jack
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Jack A Naglieri
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Wayne's World
Admiral Joined: 18 July 2012 Location: Cruising Status: Offline Points: 1111 |
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Jack,
Is this problem new or has the boat always done this?
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Wayne W
Cruising, currently in the Caribbean and will head across the Pacific early 2024 |
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colinc
Captain Joined: 08 May 2019 Location: UK Status: Offline Points: 169 |
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Presume something is out of alignment ... hull, keel, rudder, propeller, saildrive, or steering transmission. If only under motor then you should look at prop or saildrive first. If only just started then propeller seems most likely. Could just be something stuck or not folding/feathering. Can you dive and look? Or send down a diver? You could check steering cables etc too.
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ohthetrees
Captain Joined: 24 November 2019 Status: Offline Points: 169 |
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It seems that balanced rudders like ours don't self-center they way we learn to expect from cars and more traditional rudders. My boat doesn't self center, and can turn to greater and greater angles if no hand is on wheel. That said, I don't experience a strong pull to one side or the other when I am hand steering, I can keep it centered with finger.
One possible test is to get good speed up under power, then quickly put the engine into neutral. While coasting, does the pull go away? If so, I'd look at mis-aligned saildrive. If not, I'd confirm prop is feathering, then start looking at rudder/keel alignment. Goodluck!
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Jack Naglieri
Sub Lieutenant Joined: 28 June 2020 Location: Annapolis, MD Status: Offline Points: 15 |
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THe problem was evident at delivery and remained for months. Boat now on hard for potential repair but no diagnosis yet.
thanks
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Jack A Naglieri
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Jack Naglieri
Sub Lieutenant Joined: 28 June 2020 Location: Annapolis, MD Status: Offline Points: 15 |
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The pull only occurs when under motor, not when in neutral or under sail...thanks for your thoughts
Jack
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Jack A Naglieri
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ohthetrees
Captain Joined: 24 November 2019 Status: Offline Points: 169 |
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I think that is good news, means you can eliminate keel and rudder alignment problems. Those were the more terrible scenarios.
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Jack Naglieri
Sub Lieutenant Joined: 28 June 2020 Location: Annapolis, MD Status: Offline Points: 15 |
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thanks, so perhaps it is the prop orientation...sail drive ...these are being checked
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Jack A Naglieri
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