Probably nothing but as the title says... New noise you have to ask.
1300 RPM, somewhat lively following seas. Intermittent hi then lo whine not horribly loud but noticeable... goes away, comes back. Audible in master state room and on aft deck. Nothing in engine rooms....
Exhausts intermittently below water with resulting back pressure making music?
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Thread: New noise......
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09-30-2020 10:29 PM #1
New noise......
Last edited by oscarvan; 09-30-2020 at 10:33 PM.
1978 53' Motor Yacht "LADY KAY V"
Hull number 524
Chesapeake Bay
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Re: New noise......
Strut bearings possibility
SEVEN
1979 53' MY Hull #563
Antioch, California
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10-01-2020 07:06 AM #3
Re: New noise......
They were good 20 hours ago.....
1978 53' Motor Yacht "LADY KAY V"
Hull number 524
Chesapeake Bay
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Re: New noise......
The lively seas can induce a little movement of the shaft in the bearing creating a whine. Did it coincide with ramp? Or climbing a wave or surfing down a wave?
John
1981 58 Yachtfish Hull 477
Wickford RI
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Re: New noise......
Turbochargers?
--- The poster formerly known as Scrod ---
I want to live in Theory, everything works there.
1970 36C375
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10-01-2020 09:04 AM #6
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10-01-2020 09:05 AM #7
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Re: New noise......
Exhaust underwater wouldn’t be a whine. Either cutlass bearings although I ve never had this happen on any boat or rudders? Does it happen under AP or someone steering ?
Pascal
Miami, FL
1970 53 MY #325 Cummins 6CTAs
2014 26' gaff rigged sloop
2007 Sandbarhopper 13
12' Westphal Cat boat
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10-01-2020 11:53 AM #9
Re: New noise......
Ride home this am into small chop. No noise. Panic alert cancelled.
Pascal, I was wondering about hydraulic/stuffing box noises in the rudder.......1978 53' Motor Yacht "LADY KAY V"
Hull number 524
Chesapeake Bay
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Re: New noise......
Sure it wasn’t all those airline pilots that just got furloughed?
"DON'T BELIEVE ANYTHING YOU READ OR HEAR AND ONLY HALF OF WHAT YOU SEE" - BEN FRANKLIN
Endless Summer
1967 50c 12/71n DDA 525hp
ex Miss Betsy
owners:
Howard P. Miller 1967-1974
Richard F Hull 1974-1976
Robert J. & R.Scott Smith 1976-present