Coduit Through the Mast - SailNet Community
 
LinkBack Thread Tools
post #1 of 8 Old 03-22-2009 Thread Starter
sailor
 
Join Date: May 2007
Location: Texas
Posts: 11
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Coduit Through the Mast

Hello Everyone,

I have gleaned countless tips and strategies from the contibutors of these forums about refitting my 1973 Columbia 8.7. The time has come for me to pull new wire through the mast and I want to install pvc electrical conduit. The problem is the mast has a solid styrofoam core. Does anyone have experiance or words of wisdome for pushing conduit through a 42' styrofoam packed mast?

Working On The Dream,
zeph

"Some Day Never Comes" -John Fogerty
solzephyr is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
Advertisement
 
post #2 of 8 Old 03-22-2009
Senior Member
 
Join Date: Jul 2008
Location: chesapeake bay
Posts: 1,942
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 7
 
okay, you want to cut saw teeth on the end of the pipe, push and turn to saw your way thru. you will need to pull it out a few times to clear it. but even better is to get electrical metal tubing and do it with that. its the same out side dia and its thinner so it will be easier to push thru. after you get it thru, pull it out and then put the pvc in place
scottyt is offline  
Quote Quick Reply Share with Facebook
post #3 of 8 Old 03-22-2009
Senior Member
 
Join Date: Apr 2003
Posts: 4,192
Thanks: 50
Thanked 38 Times in 37 Posts
Rep Power: 15
     
Quote:
Originally Posted by solzephyr View Post
Hello Everyone,

I have gleaned countless tips and strategies from the contibutors of these forums about refitting my 1973 Columbia 8.7. The time has come for me to pull new wire through the mast and I want to install pvc electrical conduit. The problem is the mast has a solid styrofoam core. Does anyone have experiance or words of wisdome for pushing conduit through a 42' styrofoam packed mast?

Working On The Dream,
zeph
The first question that comes to my mind is, why are you installing the conduit?

Isn't it possible to simply pull the new wire through using the old wires as messengers?
Unless you plan to remove the Styrofoam, you won't have a problem with wires slapping.
Sounds like you may be making more work for yourself than you need to.

If you really want to install the conduit, then remove the Styrofoam. I can't think of what purpose it could serve anyway.
knothead is offline  
Quote Quick Reply Share with Facebook
post #4 of 8 Old 03-22-2009
Senior Member
 
billyruffn's Avatar
 
Join Date: Sep 2004
Location: Massachusetts
Posts: 1,292
Thanks: 5
Thanked 28 Times in 19 Posts
Rep Power: 11
 
I have always considered what goes on inside my mast as one of the grand mysteries of life.

Good luck and please report back when you've discovered the secret.
billyruffn is offline  
Quote Quick Reply Share with Facebook
post #5 of 8 Old 03-22-2009 Thread Starter
sailor
 
Join Date: May 2007
Location: Texas
Posts: 11
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Thanks knothead, it would be great to use the existing wires as a mesenger cable, but they are packed so tightly with the styrofoam that they won't move without breaking. How would you remove tightly packed styrofoam from this 42' long tube? Scottyt's method of sawing through the styro stuff by turning jaged metal conduit might work. Has anyone ever done this before? There should be a brace between the spreader brackets and also between the shrould conections. Getting around those might be a challenge. Yes, billy the inerworkings of our masts are best left a mystery until we trully need to know there secrets. I appreciate everyones feedback.

"Some Day Never Comes" -John Fogerty
solzephyr is offline  
Quote Quick Reply Share with Facebook
post #6 of 8 Old 03-22-2009
Senior Member
 
timebandit's Avatar
 
Join Date: Sep 2002
Posts: 928
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 13
 
Lacquer thinner will desolve styrofoam.

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

Mac 25
Copernicus
Southern California
I am not a prejudice racist sexist bigot. I just hate stupid people.
timebandit is offline  
Quote Quick Reply Share with Facebook
post #7 of 8 Old 03-23-2009
Senior Member
 
Join Date: Apr 2003
Posts: 4,192
Thanks: 50
Thanked 38 Times in 37 Posts
Rep Power: 15
     
Quote:
Originally Posted by solzephyr View Post
Thanks knothead, it would be great to use the existing wires as a mesenger cable, but they are packed so tightly with the styrofoam that they won't move without breaking. How would you remove tightly packed styrofoam from this 42' long tube? Scottyt's method of sawing through the styro stuff by turning jaged metal conduit might work. Has anyone ever done this before? There should be a brace between the spreader brackets and also between the shrould conections. Getting around those might be a challenge. Yes, billy the inerworkings of our masts are best left a mystery until we trully need to know there secrets. I appreciate everyones feedback.
Sounds like someone used expandable foam. The masts that I've seen that have Styrofoam it usually is cut to fit and the pieces slide out rather easily.

I have made a "drill bit" with a long pipe to cut through a rubber dam in a
Selden mast once but you might have a little problem with the core. You are basically making a long hole cutter.

Bottom line is, Styrofoam isn't too hard and you should be able to break it up or something.
Good luck
knothead is offline  
Quote Quick Reply Share with Facebook
post #8 of 8 Old 03-23-2009
Telstar 28
 
sailingdog's Avatar
 
Join Date: Mar 2006
Location: New England
Posts: 43,290
Thanks: 0
Thanked 14 Times in 12 Posts
Rep Power: 14
         
A lot of petro-chemical solvents will dissolve styrofoam. Do you just want to punch a hole in it or remove it entirely?

If you're putting in a conduit, I would remove the foam entirely.

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
Reply

Quick Reply
Message:
Options

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
Deck stepped Mast-Always Bad ? Mrs Mutiny Boat Review and Purchase Forum 24 10-05-2009 07:55 PM
which 38ft boat? bluewaterdreamer Boat Review and Purchase Forum 10 10-03-2007 12:54 PM
Southern Cross 31? db27513 Boat Review and Purchase Forum 35 09-24-2007 10:58 PM
30ft Catalina BigRuss Boat Review and Purchase Forum 3 09-09-2006 05:33 PM
Is one better than the other? gandydancer Gear & Maintenance 7 07-11-2002 06:08 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