Green driveshaft- how do I upload the photo? - SailNet Community
Reply
 
LinkBack Thread Tools
post #1 of 12 Old 11-14-2008 Thread Starter
Member
 
Join Date: Nov 2008
Posts: 96
Thanks: 2
Thanked 0 Times in 0 Posts
Rep Power: 7
 
Green driveshaft- how do I upload the photo?

Hello,
My driveshaft has turned green. I have owned my 30 year old boat for 4 years. This past year it has turned green. The stuffing box has also started leaking about 1 drop every 12 seconds, and I think that is the problem. There is also what looks like a mineral build up where the shaft goes into the stuffing box. I just want to make sure it isn't electrolysis. My diver says I have about 60% of my zinks left.
After I repack the stuffing box, should I worry about removing the
green. I don't want the bolts to seize up. How would I remove the green? I could brush the shaft, but I don't know if the geen build up is in the threads.

I tried to include a photo, but when I click the "insert image tab", I haven't been succesful. Can someone please tell me how to do that?

Thanks - Larry
justonemoreproject is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
Advertisement
 
post #2 of 12 Old 11-14-2008
Larus Marinus
 
Idiens's Avatar
 
Join Date: Jan 2007
Location: Brussels
Posts: 1,756
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
 
Green sounds like copper oxide deposited by electrolytic action. The copper probably comes from the bronze or brass in your stuffing box. I guess that means 1) your stuffing box is leaking and 2) there is a bronze to SS shaft contact, forming a nice little battery.

I suggest re-packing your stuffing box.

Jonathan-Livingston
Idiens is offline  
Quote Quick Reply Share with Facebook
post #3 of 12 Old 11-14-2008
Aquaholic
 
AjariBonten's Avatar
 
Join Date: Sep 2007
Location: Fingerlakes & Great Lakes New York
Posts: 1,139
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 8
 
You also did not specify what material your shaft is constructed of. Is it Bronze or Stainless? Most that I have encountered of that vintage have been Bronze.

As to photos, do a search, there is a GREAT primer on how to post photos using a hosting service.

I got an Old Fat Boat
She's Slow But Handsome
Hard In The Chine, but Soft In The Transom
I Love Her Well, And She Must Love Me
But I think It's Only For My Money
.
..... Gordon Bok
AjariBonten is offline  
Quote Quick Reply Share with Facebook
post #4 of 12 Old 11-14-2008
Telstar 28
 
sailingdog's Avatar
 
Join Date: Mar 2006
Location: New England
Posts: 43,290
Thanks: 0
Thanked 15 Times in 12 Posts
Rep Power: 14
         
Justonemoreproject-

If you want to post a photo, go read the photo posting instructions in the General Discussion forum.

Sailingdog

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

Telstar 28
New England

You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.

—Cpt. Mal Reynolds, Serenity (edited)

If you're new to the Sailnet Forums... please read this
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
.

Still—DON'T READ THAT POST AGAIN.
sailingdog is offline  
Quote Quick Reply Share with Facebook
post #5 of 12 Old 11-15-2008 Thread Starter
Member
 
Join Date: Nov 2008
Posts: 96
Thanks: 2
Thanked 0 Times in 0 Posts
Rep Power: 7
 
Photo attached

Hi,

Thanks for the directions on how to photo post. I am concerned about working on the stuffing box while the boat is in the water, since I have never re-packed one before. It may, of course it will, take a while to figure it out while water is coming into the boat. Ab

At what flow rate could I anticipate water entering the boat during this procedure? Would it help stop the galvanic action if I put a Zink temporaily on the shaft on the inside of the boat until I can haul?

Thanks for your support.
justonemoreproject is offline  
Quote Quick Reply Share with Facebook
post #6 of 12 Old 11-15-2008
Senior Member
 
johnshasteen's Avatar
 
Join Date: Aug 2002
Location: Houston, TX
Posts: 652
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 13
 
Zinc's won't be much help with oxidation. What you can do until you can haul the boat is to spray everything you can get to with a good corrision spray. The best I've seen is Corrision Block (it's made by Lear). You can get it at most marine stores.

s/v Paloma, Bristol 29.9, #141
Slipped in Bahia Marina, easy access to Corpus Christi Bay and the Gulf of Mexico.
johnshasteen is offline  
Quote Quick Reply Share with Facebook
post #7 of 12 Old 11-15-2008
Larus Marinus
 
Idiens's Avatar
 
Join Date: Jan 2007
Location: Brussels
Posts: 1,756
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
 
I would not risk unpacking the stuffing box with the boat in the water. Depends on the type of course, but even so, the bit you are replacing is stopping the water getting in.

Jonathan-Livingston
Idiens is offline  
Quote Quick Reply Share with Facebook
post #8 of 12 Old 11-15-2008
Senior Member
 
Join Date: Sep 2006
Location: Scotland
Posts: 2,364
Thanks: 0
Thanked 11 Times in 11 Posts
Rep Power: 9
 
Juston :

Don't re-pack it when it is in the water!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

The moment you pull out the old packing, you will be caught in a blast of freezing water that will make work impossible. You won't be able to see anything with water blasting everywhere.
You will not be able to get the new packing in there either as the pressure difference across it will keep blowing it out again. You will have to haul then or your ship will sink..... that's if your ship's pumps can keep ahead of the water entry rate until you can haul.

Don't even think about it.

You must haul for this procedure or at least try to do it between tides!!!!!

Don't do it Juston. Don't do it man.

Last edited by Rockter; 11-15-2008 at 06:50 PM.
Rockter is offline  
Quote Quick Reply Share with Facebook
post #9 of 12 Old 11-15-2008
Junior Member
 
Join Date: Oct 2008
Posts: 24
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
I've not redone a packing box while in the water - nor needed too - but I would think if you wrapped the thruhull with very light plastic sheeting (multiple layers) from the outside and used perhaps a hose clamp around the shaft over the plastic that the influx of water created by removing the packing would suck the plastic into place blocking the flow enough to restuff the box. ? I'd give it a try before paying $300 - $600 plus lay time to haul it. But I would do it in very... shallow water.

You can't have the binky

Last edited by MeCaptainBinky; 11-15-2008 at 09:02 PM. Reason: Needed to be more descriptive
MeCaptainBinky is offline  
Quote Quick Reply Share with Facebook
post #10 of 12 Old 11-15-2008
Wish I never found SN!
 
SimonV's Avatar
 
Join Date: Jul 2006
Location: Brisbane Australia
Posts: 2,061
Thanks: 8
Thanked 4 Times in 4 Posts
Rep Power: 10
 
I saw this done in Fiji, Suva harbour, use modeling clay to seal the outer shaft, simple.

Simon
Ericson 39B.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

I love my boat
S/V GOODONYA
Brisbane
present location Heading to the Whitsundays

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

DELIVERY SKIPPER
Drinking Rum before 10am makes you a Pirate NOT an alcohlic
SimonV is offline  
Quote Quick Reply Share with Facebook
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









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
Can't Upload Photo S/VNirvana Announcements and Suggestions Box 1 04-15-2007 11:41 PM
Photo, Photo-Giu!! Cruisingdad General Discussion (sailing related) 8 03-03-2007 12:20 AM
A Cal 20 photo on a trailer? hammerguy@mindspring.com Cal 2 12-13-2006 07:06 PM
Extra green time for smooth sailing over new bridge: Extra green light time sought Extra green light time sought over (Asbury Park Press) NewsReader News Feeds 0 04-23-2006 05:15 AM
The Green Flash Dan Dickison Cruising Articles 0 02-28-2002 07:00 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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

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