Replacing the cutlass bearing on a 1996 Beneteau 351

keven

.
Dec 1, 2011
12
BEY62105H596 351 etobicoke
My cutlass bearing top hat and about 25 mm of the cutlass Bearing rubber has moved down the shaft to the propeller.Looks like I will have to remove the prop shaft to get at the remaining cutlass bearing out To replace it.Has this happened to anyone else and if so do you have to drop the rudder to pull the shaft
 

jssailem

SBO Weather and Forecasting Forum Jim & John
Oct 22, 2014
24,827
CAL 35 Cruiser #21 moored EVERETT WA
Keven. I have played with cutlass bearings. I do not clearly understand what you are facing. Can you provide images of what you discovered?
 

PEBI

.
Sep 30, 2026
39
Homebuilt 35 muck
I'd be interested to know too. I'd assume you could remove the propeller and push the shaft into the boat to remove the bearing (once you disconnected the shaft inside the boat from the trans/engine).
 

PEBI

.
Sep 30, 2026
39
Homebuilt 35 muck
Jan 4, 2006
7,814
Hunter 310 West Vancouver, B.C.
I'm making an educated guess here.
And I'll make an even more educated guess :

1792597881227.png



1792597559144.png


1792598899389.png


As far as removing the transmission I'd rather pull the shaft and rudder any day rather than pull the Xmission. My Xmission looks pretty compact and it's doubtful it would give you room to pull the shaft far enough. As far as removing the rudder goes, maybe I'm lucky but IIRC, this took about 1/2 hour to pull and less time to install.

In brief then, pulling the rudder and then shaft should be a small fraction of the time to remove and replace the Xmission. Even if you did remove the Xmission, the shaft is still goingto be so close to the cutless bearing you're not going to be able to access the bearing from the forward end. And if you can't access it from the forward end, removing the Xmission accomplishes nothing.

Maybe that's why most people remove the shaft unless they're really smart like Greg Johnson of @Tally Ho and design and fabricate you're own cutless bearing puller. He has one of his A+++ instructional videoes posted on here somewhere.
 
Jan 4, 2006
7,814
Hunter 310 West Vancouver, B.C.
if so do you have to drop the rudder to pull the shaft
Can't say as I'm not familiar with the underside of your boat.

I know mine required dropping the rudder to remove the shaft and dropping the rudder was quick and easy. Your rudder may differ. I was lucky to be on a gravel lot as I had to dig a small hole to lower the rudder an extra few inches. If your hard is ashphalt, that may not go over too well.

You remove the transmission coupling or transmission, and this gives you room to pull on the shaft.
Trust me, you don't want to remove the transmission just to remove the shaft.
 

PEBI

.
Sep 30, 2026
39
Homebuilt 35 muck
And I'll make an even more educated guess :

View attachment 240215


View attachment 240214

View attachment 240217

As far as removing the transmission I'd rather pull the shaft and rudder any day rather than pull the Xmission. My Xmission looks pretty compact and it's doubtful it would give you room to pull the shaft far enough. As far as removing the rudder goes, maybe I'm lucky but IIRC, this took about 1/2 hour to pull and less time to install.

In brief then, pulling the rudder and then shaft should be a small fraction of the time to remove and replace the Xmission. Even if you did remove the Xmission, the shaft is still goingto be so close to the cutless bearing you're not going to be able to access the bearing from the forward end. And if you can't access it from the forward end, removing the Xmission accomplishes nothing.

Maybe that's why most people remove the shaft unless they're really smart like Greg Johnson of @Tally Ho and design and fabricate you're own cutless bearing puller. He has one of his A+++ instructional videoes posted on here somewhere.

Very informative post. I stand corrected. You are really knowledgable as well as smart R. Johnstone.

cutlass bearing top hat and about 25 mm of the cutlass Bearing rubber has moved down the shaft to the propeller
tally ho tool or the strut pro tool. Could it still work with the bearing down the shaft?
 

jssailem

SBO Weather and Forecasting Forum Jim & John
Oct 22, 2014
24,827
CAL 35 Cruiser #21 moored EVERETT WA
There is too much at stake to know what to suggest. The reason images of the problem are needed. On my boat, the shaft can be slipped by the rudder once the prop is removed. Not all boats are the same.
 
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Likes: PEBI
Jan 4, 2006
7,814
Hunter 310 West Vancouver, B.C.
tally ho tool or the strut pro tool
Holy crap :yikes: ! Jusy had a quick look at the the "strut pro tool". If I'm looking at the right tool, those things are bloody expensive. Cheaper to hire someone who owns the tool and get him to pull the bearing

Could it still work with the bearing down the shaft?
Can't say I'm crystal clear on kevin's description. Don't know why he won't post a pic. I'm just curious.

After seeing just what a cutlass bearing top hat is, I see it's what I've always referred to as a flanged cutless bearing:

1792621116986.png


If this wild guess is correct, I don't see why he can't hang a gear puller off of the end of the prop shaft and pull on the flange to remove the bearing moving aft. I always thought that was the purpose of the flange ............. to make the removal of the bearing easier.

Fortunately, I've never had to remove my bearing after some 2,000 hrs. of motoring. Still 0.000" of play. Just one shaft removal to replace the hose.

I'm with @jssailem in that "nobody should say nuttin" until we see a picture of the strut, shaft, and bearing.

@Kevin J (if that handle is correct), send a photo and we'll tell you exactly what you need to pull that bearing.
 
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Likes: PEBI

jssailem

SBO Weather and Forecasting Forum Jim & John
Oct 22, 2014
24,827
CAL 35 Cruiser #21 moored EVERETT WA
No, just an intelligent build on part of CAL.

Not all boat builders are the same. Some plan for the inevitable demands of active boating adventures. Some expect that their boats will provide a queen-like experience, safely tied to the dock.:facepalm:
:biggrin:
 

keven

.
Dec 1, 2011
12
BEY62105H596 351 etobicoke
Keven. I have played with cutlass bearings. I do not clearly understand what you are facing. Can you provide images of what you discovered?
Attached a photo of the top of the cutlass bearing, the rest im hoping to pull out after I’ve removed the shaft. Thanks in advance for your help
Keven. I have played with cutlass bearings. I do not clearly understand what you are facing. Can you provide images of what you discovered?
 

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jssailem

SBO Weather and Forecasting Forum Jim & John
Oct 22, 2014
24,827
CAL 35 Cruiser #21 moored EVERETT WA
Ok. You have one that is mounted in the keel. Same design as I have on my boat.
You should be able to pull the prop. Then slip the old bearing off the shaft and the new cutlass bearing onto the shaft and back into place, without pulling the shaft out of the boat unless you are replacing the shaft.

These bearings are not more than a snug fit around the shaft. Lube the shaft with water and soap or a water-soluble lube, and you can get lucky. :biggrin:

That set screw helps to hold the cutlass bearing in place. Sometimes there are two set screws on top of each other. When you remove the first check to see if there is a second deeper in the hole.