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Need to replace cutlass bearings?

T

Thomas.misskelly

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Mar 19, 2018
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On my 2001 55' convertible I noticed a whistle when I put in gear on both engines...I dove under the boat and turned the props by hand and the whistle/squeak seems to be coming from the cutlass bearing. The boat is in Mexico and the nearest haul out is 100 miles...is this a sign the bearing need replacement?
 
Could be the rubber in the bearing is gone and shaft is rubbing on metal. If it is possible someone should try to move the shaft up and down to see if there is movement in the bearing if so then bearing is for sure bad. This may not be so easy underwater, but if you brace yourself well you should be able to get enough force to move the shaft. The other thing I have seen is the rubber in one had actually broken loose and folded itself over in the bearing making the shaft very tight. This is very unusual however. John
 
I've had my shafts squeal in the cutlass bearings at spin down when all was ok but as stated above, you need to try and see how much "clunk" you have in your shaft movement/clearance.

George
 
I'm going to have a diver go down this morning and see if there is any play in the bearing... if it looks ok is was thinking about using the fresh water hose to spray and clean them out.
 
Was at a marina once where a diver had a cutless bearing removal/install tool powered with a hand pumped hydraulic press up on the dock that pressed out the old and pressed in the new set of cutlass on a Viking, think it was a 53. He had different parts to use for different shaft and cutlass sizes, pretty slick.
 
Cleaned them with brush and hose, inspected and no play, they look good but still squeak...
 
Is it squeaking when turning by hand or just at low speeds
 
Squeaks at low speed and when you turn by hand...you can hear it coming directly from the strut. I was thinking about using a wire and cleaning each grove... water seems to be flowing good.
 
Thomas.misskelly said:
On my 2001 55' convertible I noticed a whistle when I put in gear on both engines...I dove under the boat and turned the props by hand and the whistle/squeak seems to be coming from the cutlass bearing. The boat is in Mexico and the nearest haul out is 100 miles...is this a sign the bearing need replacement?
Click to expand...
If a low speed noise which goes away with increased rpm it could be as simple as a singing wheel. Edges of the prop blades are worn to a sharp edge and set up a high pitch whine. Having the wheels tuned will eliminate it.
 
Is it possible that the strut set screw(s) holding the cutlass bearing have loosened, backed out, or sheared off and are allowing the cutlass to spin inside the strut? Just a thought. PJ61
 
I had same issue on starboard going astern at low speed. All checked out OK with cutlass bearing. Noise went as mysteriously as it appeared. That was 150 hrs ago. Yard though paint from recent bottom job may have been cause. They used a stethoscope to listen from inside, and identified lower strut by prop. Which they though could have been cutlass bearing or the spurs line cutter.

Ray
 
I recently replaced all of my cutlass bearings on both struts each side and the rudder shafts.

Right after the boat was launched I heard a whistle sound over the starboard intermediate strut at low rpms only. The sound has since gone away. I thought it was probably due to the tight fit of the rubber and being new.

Or gremlins...

Jon
 
kingsley_oasis said:
I had same issue on starboard going astern at low speed. All checked out OK with cutlass bearing. Noise went as mysteriously as it appeared. That was 150 hrs ago. Yard though paint from recent bottom job may have been cause. They used a stethoscope to listen from inside, and identified lower strut by prop. Which they though could have been cutlass bearing or the spurs line cutter.Ray
Click to expand...
I often regret not taking enough care of my hearing. Other times it can be a blessing.
 
Now I think it must be something besides the cutlass bearings...they look ok and when I turn the props by hand I hear a squeak but the sound I can't figure out is a definite whistle right when I put it in gear...sounds like a flute.
 
I have a video but can’t figure out how to load on this site...I can email
 
I have the same noise after spending two weeks in the yard doing the rudder shafts, bottom paint and running gear. There was no noise before. My noise is similar to when you rub a wet finger on a wine glass. I hear it at 550 rpm and it goes away once I advance the throttle, no noise at high idle of 750 rpm. Many have suggested that paint may have gotten in there and nothing to worry. Cutlass bearings are only a year old and solid at survey last November and when I was in the yard.
 
Sounds like the same problem...my last haul out was October 2016...it just started doing it one day to no reason I can determine. I wonder if the folks at Hatteras know anything?
 
There has been about a 5deg drop in water temp recently in my area...could that be a possible cause?
 
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