Rusted/Seized shaft coupling - SailNet Community

   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 > General Interest Forums > Gear & Maintenance
 Not a Member? 
  #1  
Old 04-29-2008
Junior Member
 
Join Date: Aug 2006
Posts: 18
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
jarod is on a distinguished road
Rusted/Seized shaft coupling

Hello All,

I have an older ericson 27 with an atomic 4. The shaft coupling is not of the split variety and the three bolts have been rounded off. I am seeking opinions on where i should go from here as i need to get it off to install my new dripless. I am to the point where i will likely have to grind the heads off the bolts and pull the shaft off that way. Please weigh in with any thoughts experiences that may help me out on this one.

will i need to drill out the keyway as well..as the set screw is just a hunk of rust...hoping i will not have to pull the motor....i am told worst case should be cutting off the coupling?

thanks all

jarod
Reply With Quote Share with Facebook
  #2  
Old 04-29-2008
Senior Member
 
Join Date: Sep 2006
Posts: 2,179
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 8
Rockter will become famous soon enough
If you have access to the rounded bolt heads, get your goggles out and butcher the nuts off with a grinder. A grinder will tackle anything. Wear your ear defenders too. Watch your fire risk if you have gasoline around. You really must wear eye protection.

The keyway lock screw should drill out, given some care with it. If you tear up the female thread, you can always re-tap with a larger thread once you get the coupling off the shaft.

Last resort is to take the grinder to the shaft as well, and cut it off aft of the coupling. Leave enough "stub" so that you can work with it a little. A hydraulic press will get the coupling oiff the shaft stub.

If the couplingis more valuable than the shaft, you can always grind the coupling off and save the shaft. It is not as easy, but it can be done.

With luck though, you may well get it off. Use lotsa WD40 also, where possible.
Reply With Quote Share with Facebook
  #3  
Old 04-29-2008
Senior Member
 
Join Date: Sep 2006
Posts: 2,179
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 8
Rockter will become famous soon enough
Yes, and use heat also. It helps. Again watch your fire risk.
Reply With Quote Share with Facebook
  #4  
Old 04-29-2008
Member
 
Join Date: Jun 2003
Location: Rockaway, NJ
Posts: 69
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 11
rheaton is on a distinguished road
What can be done to mitigate risk of fire. This is a gasoline engine. Would running a fan suffice.
Reply With Quote Share with Facebook
  #5  
Old 04-29-2008
Senior Member
 
Join Date: Jun 2007
Posts: 2,710
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 8
SEMIJim will become famous soon enough SEMIJim will become famous soon enough
While I think it would be a Good Thing to fix this problem, I'm wondering if it's worth it just for a dripless stuffing box? Regular packing isn't normally all that hard to deal with, and if you use the new Gore GFO or GTU materials you'd have a "virtually dripless" solution for all of about $15 and maybe an hour's worth of labour. Don't know how long they last, but one guy on the P30 mailing list said he installed Gore GFO three seasons ago, adjusted once after 30 minutes of motoring, and hasn't had to touch it since. Everybody to whom I've talked about these materials says the same thing: They definitely live up to the manufacturer's claims. I just put Gore GTU in this spring.

Jim
Reply With Quote Share with Facebook
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Shaft coupling loose bolts Edo Kazumichi Gear & Maintenance 8 11-24-2006 09:51 AM
Flexible shaft coupling zerubb Gear & Maintenance 1 08-18-2006 11:13 PM
prop shaft coupling kurt crowley Atomic 4 2 06-27-2006 03:45 PM
The Stuffing Box and Stern Tube Tom Wood Gear and Maintenance Articles 0 04-27-1999 08:00 PM


All times are GMT -4. The time now is 04:07 PM.

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