Cruisers Forum

Join CruisersForum Today

  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 17-06-2015, 05:24   #31
Registered User

Join Date: May 2015
Location: Florida
Boat: Jeanneau 44i SO
Posts: 145
Re: Prop Shaft Bearings

Is it possible to use the dingy or hire a local in a larger power boat to tow you out to where you can safely sail. Then work the 150 miles to the haul out location and call in and tell them you need a tow in as your engine is dead and again hire a local to tow you in. Haul out and fix the problem. Probably the cheapest and easiest solution. Another option if your concerned about the sailing is to hire a tow the full 150 miles. Not cheap, but possible.

l2ridehd is offline   Reply With Quote
Old 29-06-2015, 23:20   #32
Registered User
Sun and Moon's Avatar

Join Date: Nov 2009
Location: Colorado
Boat: Bristol 29
Posts: 277
Re: Prop Shaft Bearings

It sounds like maybe your propshaft corroded due to oxygen deprivation due to stagnant/polluted/high-sediment water. You certainly risk damaging the cutlass bearing by running the engine. and possibly catostrophic failure of the propshaft with loss of the propeller and emergency containment of water.

Seems like the safe bet is to haul out somehow without running the engine. I suppose it might be possible to replace the shaft in the water. You'll need someone working in the water (ugh) and ready to plug the hole with wax or a wooden plug if things go bad. You really need good visibility, which you seem to say you don't have. You'll also need a good bilge pump standing by. I'd be very reluctant to try this on my boat, and I'm familiar with the parts and process as I've replaced my shaft and cutlass bearing a couple times. But sometimes you have to do what you have to do.

Sun and Moon is offline   Reply With Quote
Old 30-06-2015, 05:14   #33
Bailing as fast as I can.
GILow's Avatar

Join Date: Sep 2008
Location: Adelaide, South Australia
Boat: Swanson 42
Posts: 6,668
Re: Prop Shaft Bearings

Just to add my two cents. Some stern tubes I have met are not all that thick walled. If large pieces of the drive shaft have detached due to rust of some sort there is a risk that they could jamb between the shaft and the stern tube and tear the walls of the stern tube if the shaft is turned with enough force. The you'd have a very nasty leak to manage.

Since slipping the boat locally is not an option I'd favour towing the boat with the dink and outboard to open water (after a careful check of the weather forecast) then sailing somewhere you can slip her after making sure the bilge pump is good and you have options to plug gaps should the prop shaft fall out.

Less attractive, given the condition of the water, would be to source a short shaft of the correct diameter and push this in from inside the boat displacing the shaft outwards, if the design of the rudder allows this. Probably need to de mount the engine to do this. I know this is possible on our boat and I have rehearsed it on dry land. Plus I carry the parts to do it made up from the old prop shaft. I'd hate to do have to do it in the water though, even in the clearest and warmest of conditions. Good luck with whatever you decide to do, you are facing a problem that has kept me awake a few nights.


Sent from my iPad using Cruisers Sailing Forum
Count-down has commenced.
GILow is offline   Reply With Quote
Old 17-08-2015, 01:34   #34
Marine Service Provider

Join Date: Feb 2007
Posts: 81
Images: 1
Re: Prop Shaft Bearings

If you are going to order up some new bearings, it's best if you know the ID (inside diamater) of the bearing carrier (shaft log/stern tube or strut/P bracket)

An easier way to install the new bearings, which some manufacturers of bearings advocate is to bed them on epoxy. The bearing is made to be a clearance fit in the carrier. You can then have a dry run instalation, the bearing can be slid up the shaft and into the carrier and still be turned. Then you simply coat in epoxy and insert, leaving the shaft chocked if you've done it with shaft in place.

Some companies will supply slightly oversized OD bearings which can be sanded or turned down, this helps if you don't know the exact ID of the bearing carrier.

The noise and vibration could very easily be caused by a very worn bearing, you get crustation growth in the waterways if you are in warm waters, which is very abrasive.

4HMainer is offline   Reply With Quote

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
Converting Beneteau metric shaft, bearings, seals etc. to SAE. Swami18 Propellers & Drive Systems 10 14-06-2017 15:44
When to change sail drive prop shaft bearings Ostinato Propellers & Drive Systems 2 27-07-2015 21:33
Rudder and Shaft Bearings sy_gilana Construction, Maintenance & Refit 1 10-10-2013 10:50
Thrust Bearings and Dripless Shaft Seal Matt sachs Propellers & Drive Systems 7 24-09-2011 03:24
Nifty Solution for Removing Cutlass Bearings with Shaft in situ ribbony Propellers & Drive Systems 5 23-04-2010 04:23

Advertise Here

All times are GMT -7. The time now is 05:20.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.