PSS shaft seal - Page 2 - SailNet Community
 3Likes
Reply
 
LinkBack Thread Tools
post #11 of 17 Old 10-26-2016
Senior Member
 
Join Date: Jan 2013
Posts: 100
Thanks: 0
Thanked 4 Times in 4 Posts
Rep Power: 8
 
Re: PSS shaft seal

Regardless of whether you use a split coupling or solid coupling, it should be fit to the shaft by a machine shop and faced to run true with the shaft.
sesmith is offline  
Sponsored Links
Advertisement
 
post #12 of 17 Old 10-26-2016 Thread Starter
Senior Member
 
jvlassak's Avatar
 
Join Date: Sep 2009
Location: Boston area
Posts: 424
Thanks: 47
Thanked 24 Times in 24 Posts
Rep Power: 11
 
Re: PSS shaft seal

Quote:
Originally Posted by sesmith View Post
Regardless of whether you use a split coupling or solid coupling, it should be fit to the shaft by a machine shop and faced to run true with the shaft.
That is what I originally assumed and that would require removing the shaft. I wonder if there is even enough space to slide the shaft back into place without removing the gearbox once the coupling has been fitted - that takes us back to a flexible coupling that can tolerate minor misalignment.

Is there anyone who has experience with flexible couplings?


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


1995 Pacific Seacraft 34
Iphigenia
jvlassak is online now  
post #13 of 17 Old 10-26-2016
One of None
 
deniseO30's Avatar
 
Join Date: Nov 2006
Location: Bristol pa
Posts: 8,044
Thanks: 85
Thanked 193 Times in 181 Posts
Rep Power: 15
   
Re: PSS shaft seal

"drive saver" is the shortest one as it just fits between the flanges. The alignment still needs to be close or any flex coupling will have a shorter life.

Most of the worry and pre project anxiety is worse then the work. Even dropping a rudder is not that difficult.
Is the cutlass bearing loose?

"Next best thing to not having a boat? The knowledge from having one!" Denise, Bristol PA, On Tidal Delaware River, Anchor Yacht Club.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

My last project!
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
deniseO30 is offline  
 
post #14 of 17 Old 10-26-2016 Thread Starter
Senior Member
 
jvlassak's Avatar
 
Join Date: Sep 2009
Location: Boston area
Posts: 424
Thanks: 47
Thanked 24 Times in 24 Posts
Rep Power: 11
 
Re: PSS shaft seal

Quote:
Originally Posted by deniseO30 View Post
"drive saver" is the shortest one as it just fits between the flanges. The alignment still needs to be close or any flex coupling will have a shorter life.

Most of the worry and pre project anxiety is worse then the work. Even dropping a rudder is not that difficult.
Is the cutlass bearing loose?
The cutlass bearing is pretty tight, little or no motion in the shaft. I get it about the pre project anxiety - you're dead right on that one.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


1995 Pacific Seacraft 34
Iphigenia
jvlassak is online now  
post #15 of 17 Old 10-26-2016
Senior Member
 
Join Date: Aug 2016
Posts: 165
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 4
 
Re: PSS shaft seal

Probably 20 years on our PSS shaft seal. It still looks good but we will replace this year along with the cutlass bearing. It lasts a long time but considering the litigious society we live in it probably drives the maker to build in a VERY healthy safety margin.
gonecrusin is offline  
post #16 of 17 Old 10-26-2016
One of None
 
deniseO30's Avatar
 
Join Date: Nov 2006
Location: Bristol pa
Posts: 8,044
Thanks: 85
Thanked 193 Times in 181 Posts
Rep Power: 15
   
Re: PSS shaft seal

Knowing a bit about drives, seals, pumps etc the way PSS doesn't leak is still amazing to me

"Next best thing to not having a boat? The knowledge from having one!" Denise, Bristol PA, On Tidal Delaware River, Anchor Yacht Club.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

My last project!
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
deniseO30 is offline  
post #17 of 17 Old 12-17-2016
Junior Member
 
Join Date: Feb 2009
Location: Liveaboard SV Yankee
Posts: 22
Thanks: 5
Thanked 2 Times in 2 Posts
Rep Power: 0
 
Re: PSS shaft seal

I have not been on the forum for more than a year. I sail #274 PSC34. Three years ago I changed the prop, the cutless bearing, the stuffing box into a PSS, and the coupling into a split coupling. I did not drop the rudder. I prepared a detailed work plan and if you are interested to have it, PM me. I did not use a workshop for coupling/shaft alignment.
YankeePSC34 is offline  
Reply

Quick Reply
Message:
Options

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

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:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
PSS Shaft Seal DCSailor1 Gear & Maintenance 9 09-09-2015 03:30 PM
Pss Shaft Seal Magic1 Gear & Maintenance 16 10-07-2010 01:03 AM
Who has PSS shaft seal installed? orientalnc2010 Pacific Seacraft 6 04-25-2010 06:03 PM
PSS shaft seal Windborn Gear & Maintenance 26 02-01-2009 10:10 PM
Packless Shaft Seal (PSS) bkdehuff General Discussion (sailing related) 4 04-20-2004 05:41 PM

Posting Rules  
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome