SailNet Community - Reply to Topic

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > On Board > Gear & Maintenance > Prop shaft / cutlass bearing overhaul
 Not a Member? 


Thread: Prop shaft / cutlass bearing overhaul Reply to Thread
Title:
  

By choosing to post the reply below you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Message:
Trackback:
Send Trackbacks to (Separate multiple URLs with spaces) :
Post Icons
You may choose an icon for your message from the following list:
 

Register Now

In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Click here to view the posting rules you are bound to when clicking the
'Submit Reply' button below


Additional Options
Miscellaneous Options

Click here to view the posting rules you are bound to when clicking the
'Submit Reply' button below


Topic Review (Newest First)
07-31-2013 05:56 AM
Kutter
Re: Prop shaft / cutlass bearing overhaul

Quote:
Originally Posted by SchockT View Post
I pressed the new bearing in with a length of reddi rod and some fender washers on each end. Then it was just a question of winding it in. Initially I used 2 washers on each end. but they started going concave with the force it took, so I stacked 4 washers on each end! At least I know it's not going anywhere!
Next time you could get a shaft bearing finished as a clearance in the carrier (strut/Pbracket/stern tube) then you just coat in epoxy and slide it in, removal just heat the carrier, or if it's a stern tube in GRP you can split some bearings with a sharp shisel. This method is used on commercial boats so it does work, it can also allow you to check the carrier alignment as you can a dry run installation. With shaft chocked you should be able to slide the new bearing up the shaft and spin it in the carrier, if you can the carrier is aligned.
07-11-2013 04:02 AM
Kutter
Re: Prop shaft / cutlass bearing overhaul

You can instal shaft bearings as a clearance fit just using a low temp epoxy as a bedding, securing method. This can help with alignment check of bearing carriers as well. By doing a dry run installation with shaft supported/chocked you should be able to slide the new bearing up the shaft and spin it in the bearing carrier, once this is achievd you know carrier and shaft are aligned (many P, V strust, brackets aren't). Coat in epoxy and insert.

Removal is easy in metal carriers as you just heat the carrier and epoxy softens, or if in a GRP tube then bearings can be coated in release agent and they will split away with a well placed sharp thin wood chisel.

Clean up the bore with a piece of coarse sand paper/cloth on the end of a rod attached to a drill.
05-27-2013 01:19 PM
SchockT
Re: Prop shaft / cutlass bearing overhaul

Quote:
Originally Posted by Ritchard View Post
I wouldn't post that picture of the coupling on my boat. That area is so far out of reach that it looks like the Pit of Despair, filled with unreachable crud. If only my teenagers would fit in there. Oh wait, they would! They would just think me the stupidest man on earth for asking them to go in there with some cleaner and a rag.
Oh don't worry, I cleaned the whole area up while I was down there. The stuffing boxe is no longer green, and the rusty coupler is now volvo green. I can't do all that work and not have it LOOK better too!
05-27-2013 11:56 AM
Ritchard
Re: Prop shaft / cutlass bearing overhaul

I wouldn't post that picture of the coupling on my boat. That area is so far out of reach that it looks like the Pit of Despair, filled with unreachable crud. If only my teenagers would fit in there. Oh wait, they would! They would just think me the stupidest man on earth for asking them to go in there with some cleaner and a rag.
05-27-2013 11:07 AM
eherlihy
Re: Prop shaft / cutlass bearing overhaul

Congrats on completing the job!

I went down this same path a year ago, and ended up cutting the shaft out (in several pieces). You can read about it here; http://www.sailnet.com/forums/gear-m...-overhaul.html

It wasn't pretty, but I am confident that the job was done right. If not, I know who to blame.
05-27-2013 10:53 AM
deniseO30
Re: Prop shaft / cutlass bearing overhaul

Pain of taking it all apart is so easy to forget .. But then, the pain of putting all together WITHOUT a hammer is another memory best forgotten....
05-27-2013 10:47 AM
Faster
Re: Prop shaft / cutlass bearing overhaul

Nice work!.. and good patience too!
05-27-2013 09:28 AM
JimsCAL
Re: Prop shaft / cutlass bearing overhaul

Congrats. I'm sure you have a real feeling of satisfaction after all of that. One trick that would have made putting the bearing in easier is to chill it in an ice bath before installing it. It reduces the diameter and makes sliding it in easier.
05-27-2013 04:33 AM
SchockT
Re: Prop shaft / cutlass bearing overhaul

Well, it took several hours contorted in a locker to implement my unistrut puller, but in the end I prevailed! (the harmonic balancer puller was a no-go because I couldn't find short pusher screws.) I had to use 3 different length pusher bolts stepping up by 1/4" each time due to the limited clearance, and the damned thing fought me until the end! I am still feeling the pain from the extended contortion act I had to go through to get enough power to the wrenches!



Here is a better look at the puller and the defeated coupler! Note the hard earned celebratory beer!



The Cutless bearing also gave me some trouble. The brass part of the bearing was so thin that getting a puller on it wasn't going to happen, so I took a hacksaw apart and reassembled it inside the bearing and cut it in several places. Even after being cut it didn't want to come out until I went at it with a pin punch and a cold chisel to get it peeling up. I pressed the new bearing in with a length of reddi rod and some fender washers on each end. Then it was just a question of winding it in. Initially I used 2 washers on each end. but they started going concave with the force it took, so I stacked 4 washers on each end! At least I know it's not going anywhere!

Hopefully that is the last time I have to do that job on the boat!
05-23-2013 01:47 AM
SchockT
Re: Prop shaft / cutlass bearing overhaul

Thanks for the suggestions!

I got my hands on a harmonic balancer puller that should do the trick if I can get a shorter pusher screw for it. I only have 2.5" to work with!



my plan "B" is a short piece of shallow Unistrut with a 3/8 bolt and captive unistrut nut for the pusher.

I didn't have time to work on it today since I had to get the bottom paint on between weather systems!
This thread has more than 10 replies. Click here to review the whole thread.

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


All times are GMT -4. The time now is 04:03 AM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.