Cruisers Forum

Join CruisersForum Today

Thread Tools Rate Thread Display Modes
Old 20-04-2017, 22:24   #1
Registered User

Join Date: Sep 2013
Location: Dubai
Boat: Bahia 46
Posts: 31
SD40 unususal Seal issues?

Good Morning Guys,

I haven't contributed to the flow of valuable expertise for a while now but now an issue baffles me and I can't seem to wrap my head around. Maybe I'll find an answer here.

A while ago I changed the oil in the SB saildrive using a sucking pump and this nipple to attach it to the SD
I connected this nipple to the lowest hole on the SD and had both Bolts removed from the Top Lid of the SD so air can go in while I suck out the oil. The job went very well and after I filled up the right amount, I was satisfied. After a week or two, of repeatedly checking the SD oil before using, I noticed the color and viscosity changing of the oil. BUSTED outer Seal is the diagnosis, which seems to happen OK.

But after the same procedure about a month later (I change the Fluids at different times but same intervals) on the Port SD and similar time later I had water leaking into that SD as well

Now my question is, does sucking out the oil damage the outer seal of the SD? The oil is quiet thick so maybe while sucking it out it creates a 'vacuum' inside the lower part of SD and the outer Seal gets 'sucked' inwards?

It is less about the water intrusion or seal itself, I just don't want to keep going with that oil change method and having to change the seals everytime too

Thanks a lot for any input

P.S. anybody ever changed both SD seals under water so far?

Soulflyer1980 is offline   Reply With Quote


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
Yanmar SD50 Forward Seal Service Interval and Engine Rear Seal? cdiversions Propellers & Drive Systems 4 24-12-2016 19:10
For Sale: Tides marine Sure Seal 2" x 3.5" shaft seal tkeithlu Classifieds Archive 0 25-06-2016 11:19
Raritan PHII shaft seal doesn't (seal) skipgundlach Plumbing Systems and Fixtures 0 14-03-2016 10:18
Shaft Seal - PSS or Tides Marine Lip Seal ? Lennie Construction, Maintenance & Refit 40 13-08-2015 09:36
Rub Rails: To Seal or Not to Seal ? rognvald Construction, Maintenance & Refit 3 12-11-2011 15:13

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 19:08.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.