Cruisers Forum
 


Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on Cruisers Forums. Advertise Here
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 20-05-2024, 05:57   #1
Registered User

Join Date: Jul 2019
Location: South Haven Michigan
Boat: Beneteau 331
Posts: 385
Worn Cutlass Bearing?

I hear a high pitched whining noise at specific RPM when I am underway. It sounds like it is coming from the cutlass bearing area.

It also just started happening when the propshaft is freewheeling.

Is this a sign of a worn cutlass bearing?

The boat is a Beneteau 331
Tmacmi is offline   Reply With Quote
Old 20-05-2024, 06:22   #2
Registered User

Join Date: Sep 2019
Posts: 456
Re: Worn Cutlass Bearing?

Very interested in the answer to this.

My situation is a variation:

- I have always had a whining noise under engine when in a specific rpm range but it goes away above or below that range.
- This winter I changed the cutlass bearing
- Now I still have the same noise in roughly the same rpm range BUT it also happens when sailing at certain speeds and the prop is freewheeling
leecea is offline   Reply With Quote
Old 20-05-2024, 06:58   #3
Registered User

Join Date: Dec 2009
Location: Australia
Boat: BUILT!!! Roberts Mauritius 43ft
Posts: 3,908
Re: Worn Cutlass Bearing?

Maybe this will help solve the problem?

whining noise in prop shaft - Boat Building & Maintenance


Canal World
https://www.canalworld.net › forums › 38764-whining-n...

8 June 2011 — I have a whine which comes in between 1200 rpm and 1400rpm, engine speed, the gearbox has a 2:1 reduction so prop speed is between 600 and 700.

Whining Propellor - Boat Building & Maintenance - Canal World

14 June 2018

whining noise in prop shaft - Page 2 - Canal World

9 June 2011

"Prop song"... - Boat Equipment - Canal World

6 July 2016

Humming prop shaft!... - Boat Building & Maintenance


Prop Shaft Noise


YBW Forum
https://forums.ybw.com › ... ›
Motor Boat Forum

31 Aug 2005 — What happens is that a harmonic resonation is set up by the propellor presenting itself as a high pitched whine as you experience. The good news ...

Do I have a singing prop or a more serious problem?

21 May 2012

Prop whine | YBW Forum

20 May 2009

noise from cutlass bearing? - YBW Forum

6 June 2001

Volvo Penta Gearbox Whine - YBW Forum


Prop shaft noise - Cruisers & Sailing Forums


Cruisers Forum
https://www.cruisersforum.com ›
forums › prop-shaft-no...

11 Aug 2017 — Sometimes cutlass bearing squeal after a haulout even if not new. In my experience that eventually goes away. New ones almost always squeal for ...

Noise from propshaft? - Cruisers & Sailing Forums

5 May 2022

free spinning shaft makes whirring noise - Cruisers Forum

17 Dec 2018

New Engine High Pitch Noise? - Cruisers & Sailing Forums

18 Nov 2015

Noisy shaft when sailing after installing new engine and new .



If you try eveything listed above and it still whistle have a look at this


https://www.google.com.au/search?q=w...client=gws-wiz
coopec43 is offline   Reply With Quote
Old 20-05-2024, 07:01   #4
Registered User

Join Date: Sep 2019
Posts: 456
Re: Worn Cutlass Bearing?

Thanks for posting all that - it will take a while to look through
leecea is offline   Reply With Quote
Old 20-05-2024, 07:04   #5
Registered User

Join Date: Dec 2009
Location: Australia
Boat: BUILT!!! Roberts Mauritius 43ft
Posts: 3,908
Re: Worn Cutlass Bearing?

Quote:
Originally Posted by leecea View Post
Thanks for posting all that - it will take a while to look through

You've got one hour to report back with a solution.
coopec43 is offline   Reply With Quote
Old 20-05-2024, 08:12   #6
Registered User

Join Date: Jul 2019
Location: South Haven Michigan
Boat: Beneteau 331
Posts: 385
Re: Worn Cutlass Bearing?

Quote:
Originally Posted by coopec43 View Post
Maybe this will help solve the problem?
Thank you for taking the time to provide such a detailed reply. This is much appreciated.
Tmacmi is offline   Reply With Quote
Old 20-05-2024, 13:07   #7
Registered User

Join Date: Jul 2019
Location: South Haven Michigan
Boat: Beneteau 331
Posts: 385
Re: Worn Cutlass Bearing?

Quote:
Originally Posted by coopec43 View Post
Maybe this will help solve the problem?
I am vaguely concerned that the shaft may have been bent.

I wrapped a line around the propeller last season. However it seems unlikely to me....there is only about 4" of shaft exposed through the hull and bearing and the force was tortional not from side to side.
Tmacmi is offline   Reply With Quote
Old 20-05-2024, 14:07   #8
Registered User
 
Cheechako's Avatar

Join Date: Aug 2006
Location: Skagit City, WA
Posts: 25,601
Re: Worn Cutlass Bearing?

I've not heard a loose cutlass bearing whine being rubber, but anything is possible I suppose. Aft transmission bearing bad? Put it in gear and see if the whining stops, it sounds like it likely will. If so it's the shaft, cutlass or ...maybe it's the aft transmission bearing!
__________________
"I spent most of my money on Booze, Broads and Boats. The rest I wasted" - Elmore Leonard











Cheechako is offline   Reply With Quote
Old 20-05-2024, 18:01   #9
Moderator

Join Date: Feb 2010
Location: Australia
Posts: 3,480
Re: Worn Cutlass Bearing?

Has the Beneteau got the soft rubber cutlass bearing ( easy push fit) held by 2 plastic screws? Maybe the bearing has popped out of the strut and the shaft is running on the bronze strut.
skipperpete is online now   Reply With Quote
Old 21-05-2024, 06:26   #10
Registered User

Join Date: Jul 2019
Location: South Haven Michigan
Boat: Beneteau 331
Posts: 385
Re: Worn Cutlass Bearing?

Quote:
Originally Posted by skipperpete View Post
Has the Beneteau got the soft rubber cutlass bearing ( easy push fit) held by 2 plastic screws? Maybe the bearing has popped out of the strut and the shaft is running on the bronze strut.
Yes, itís exactly that. I am hoping that the cutlass bearing has broken free and is spinning in its housing
Tmacmi is offline   Reply With Quote
Old 21-05-2024, 09:14   #11
Registered User

Join Date: Oct 2020
Location: SE USA
Boat: Hunter 38
Posts: 1,469
Re: Worn Cutlass Bearing?

Quote:
Originally Posted by Tmacmi View Post
I hear a high pitched whining noise at specific RPM when I am underway. It sounds like it is coming from the cutlass bearing area.

It also just started happening when the propshaft is freewheeling.

Is this a sign of a worn cutlass bearing?

The boat is a Beneteau 331
Not to be pedantic, but is it Cut-less?

Regardless, after a prop change due to hitting a piece of submerged wood and finding the prop unrepairable due to excessive pinking, I had a whine from about 1,700 to about 2,000 under low power.

I spent an afternoon in Uncomfortable Boat Maintenance Position #3 and aligned my prop shaft (it was well out), vertically to within 0.0005" and horizontally to 0.002" and it whines no more
flightlead404 is offline   Reply With Quote
Old 21-05-2024, 15:07   #12
Moderator

Join Date: Feb 2010
Location: Australia
Posts: 3,480
Re: Worn Cutlass Bearing?

Quote:
Originally Posted by Tmacmi View Post
Yes, itís exactly that. I am hoping that the cutlass bearing has broken free and is spinning in its housing
Yeah, it could have exited the strut till it hit the propeller hub and is now spinning with the shaftÖ.. itís highly unlikely but definitely possible considering the light push fit of those Beneteau/ Jeaneau rubber bearings, (cutless- cutlass?????)
skipperpete is online now   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Bottom rudder bearing is worn out sailor Martin Challenges 5 12-10-2019 09:03
Internal Cutlass Bearing Puller Chief Engineer Propellers & Drive Systems 28 21-02-2018 10:35
cutlass bearing Islandmike Construction, Maintenance & Refit 3 24-05-2005 02:23

Advertise Here


All times are GMT -7. The time now is 16:22.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.