Maintenace Surprises - SailNet Community
LinkBack Thread Tools
post #1 of 3 Old 11-30-2007 Thread Starter
Senior Member
davidpm's Avatar
Join Date: Oct 2007
Location: Madison
Posts: 4,493
Thanks: 360
Thanked 76 Times in 67 Posts
Rep Power: 10
Maintenace Surprises

Boat maintenance is a continual balancing act between perfect and affordable and good enough. I’m sure you have lots of examples of maintenance choices you made that had unexpected results. I’m not interested in expected results. We have all done something bone headed in either putting something off or did a bad job with the wrong materials and suffered the expected results. I’m looking for unexpected results either good or bad.
Did you use an automotive product against all advice and get away with it?
Did you just ignore something and it still worked long after the sages said it would break?
What maintenance sins have you committed with no consequences?
What maintenance did you do perfectly according to the book that didn’t work out right?
davidpm is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
post #2 of 3 Old 12-04-2007 Thread Starter
Senior Member
davidpm's Avatar
Join Date: Oct 2007
Location: Madison
Posts: 4,493
Thanks: 360
Thanked 76 Times in 67 Posts
Rep Power: 10
On the subject of maintenance surprises the newest soundings has a very funny piece about a guys fight with his head. A head water intake would block even though he:
1. Rebuilt the head twice
2. Checked the hoses, they would draw from a bucket no problem and were not collapsing.
3. Checked the seacock it was working properly.
4. Dived and put a wire in from the outside and the thru hull was not blocked.

In every case it would work for a couple of flushes then block. Sometime he would try it later and it would be fine then block again.
Try to figure it out.
No fair people who have read the article.
davidpm is offline  
Quote Quick Reply Share with Facebook
post #3 of 3 Old 12-05-2007
Senior Member
Sasha_V's Avatar
Join Date: Feb 2004
Posts: 459
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 14
I needed to rebuild the rudder bearings. Stripping the old ones out of the rudder tube was not difficult, but there was not much of them left. Measuring the new rudder shaft told me everything I thought I needed to know. I machined up the bearings form Vesconite and, in a fit of "intelligent design" decided to make the bearing surface greater (why not, I already had the vesconite slug, why not use most of it?)
Anyway...Made the bits up, fitted them to the shaft and found everything rotated nice and smoothly, took them to the boat and installed them into the tube. Then it came time to install the rudder and it was not easy....But in the end it was in place and.....Took about 6kg or more of force to swing from side to side?!?!?

Turns out the rudder tube (which is after all only a length of copper pipe that had been glassed over) was not perfectly straight...The 1inch solid stainless rudder shaft WAS....This meant the bearings were sitting at a bit of an angle to the shaft and were acting as brakes. The reason the old bearings were so crushed and crumbled when we removed them became clear.

I thought about the ten possible ways to fix the problem (we had about three hours left on the slip)....None of the PROPER methods would fit the bill....So I dropped the rudder as much as possible so that some bit of the shaft still projected above the deck. I checked that the rudder could, in this possition spin a complete 360...and then I attached an electric drill to the top of the shaft. Ten minutes clockwise, ten minutes anti-clockwise (I think five would have done, honestly). The drill was a slow, hi-torque thing mostly used for it's jackhammering ability...But it certainly did the trick and loosened the rudder up in the limited time we had. It now works perfectly and has no knocking, rattling or other "issues" at all.

The first one was the whoops example you asked for...The way we fixed it was the "getting away with it".

Sasha_V is offline  
Quote Quick Reply Share with Facebook

Quick Reply

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:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


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.

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
Maktoum Sailing Trophy 2006 - surprises to start @ Sail World Australia NewsReader News Feeds 0 04-20-2006 09:15 PM
Dee surprises herself, watermaker battle continues @ Sail World Australia NewsReader News Feeds 0 04-12-2006 07:15 AM

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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

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