Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 22-12-2014, 12:23   #1
Registered User
 
Strait Shooter's Avatar

Join Date: Aug 2010
Location: Straits of Juan De Fuca
Boat: Ingrid
Posts: 786
Norscot shaft seal question

Alright, first off, Merry Christmas and or a Happy Holidays everyone. If you don't celebrate at all, well, have a great day anyway.

I need help again!

My boat has a Norscot shaft seal, and it has developed the habit of leaking water into my bilge, but only when underway. It doesn't leak a drop when sitting at the dock, only when motoring. It has continued to increase the amount of water and I need to deal with it now.

I've searched for, and read everything I can about seals and understand that this is a lip seal. I can't find anything published (so far) that tells me; 1) why it's failing this way. 2) what the fix is.

Can anyone help me out here?
And it's kinda like, "can I keep doing it until I need glasses" kinda thing.
Or am I looking at the possibility of catastrophic failure?

John
__________________
"Waste your money and you’re only out of money, but waste your time and you’ve lost a part of your life.” (Michael Leboeuf)
Strait Shooter is offline   Reply With Quote
Old 19-01-2015, 00:02   #2
Registered User
 
Boatyarddog's Avatar

Join Date: Nov 2014
Location: Olympia, wa.
Boat: Mariner Ketch 32- 1979- hull 202
Posts: 632
Re: Norscot shaft seal question

I'd off hand say that torsional thrust is changing the angle of the shaft underway or under thrust.
Kicking it to the side, and wearing unevenly.
Look for failing or soft engine mounts, excessive movement of the engine underway.


Sent from my iPad SV Cloud Duster
__________________
Boatyarddog is offline   Reply With Quote
Reply

Tags
shaft seal

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not 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 Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Shaft Seal - PSS or Tides Marine Lip Seal ? Lennie Construction, Maintenance & Refit 40 13-08-2015 10:36
PSS Shaft Seal; any tricks to finding the center of the shaft in the stern tube? Wireless1 Propellers & Drive Systems 31 03-04-2014 18:39
For Sale: New PSS Shaft Seal for 1" shaft and 2" stern tube. funjohnson Classifieds Archive 1 02-02-2013 19:37
For Sale: Norscot shaft seal - 1" shaft mlydon Classifieds Archive 0 27-06-2012 10:25
Rub Rails: To Seal or Not to Seal ? rognvald Construction, Maintenance & Refit 3 12-11-2011 16:13



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 17:45.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.