Electrical refit - SailNet Community
 
LinkBack Thread Tools
post #1 of 4 Old 06-15-2004 Thread Starter
Junior Member
 
Join Date: Jul 2003
Posts: 20
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Electrical refit

Any thoughts on DIY electrical refitting of a 1976 Morgan 28OI ?
I think my boat has the original wiring!
If I do use a professional.... how much can I expect to spend?
Tequiza Terri is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
Advertisement
 
post #2 of 4 Old 06-17-2004
Senior Member
 
Join Date: Feb 2003
Location: New England USA
Posts: 261
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 13
 
Electrical refit

Being the ulitimate DIY''r, I always recommend doing it yourself. If you are not familiar with wiring techniques, get a copy of one of Nigel Calders books that covers marine electrical practices.

I have always been amazed at what people pass off as "Professional" grade marine wiring. My personal standards are pretty high, as I am an engineer, and spent a number of years working for defense electronics contractors and NASA suppliers, so I have a good idea of true "Mil Spec" wiring techniques.

Hiring sombody else is a waist of money, and would never be as good a job as a careful owner working on his pride and joy.

Older boats were strung with little more than household grade wires. The better ones used a product called THHN wire. But even though a "Mil Spec" wire, THHN was not tinned. Today''s best wiring is done using marine grade tinned wire. It costs more, is larger and may be a problem running wires in the same location as the skinny older wire, but it lasts much longer and is much better resisting corrosion.

When I re-wired Silmaril, I removed 25 years of previous wires. It was remarkable how many dead wires were lurking in the strangest of places!

Take your time to lay out how you want your panels to look, I prefer keeping AC and DC panels well separated and clearly marked.

Invest in quality hand tools, not the junk at the mass retailers. Look at a W.W. Graingers catalog or at Jensen Tool. Get top of the line crimpers, strippers, cutters, use quality lugs like T&B. Take your time. It''s really not that hard. The good tools and not trying to take short cuts makes all the difference in the world.
Silmaril is offline  
Quote Quick Reply Share with Facebook
post #3 of 4 Old 06-17-2004
Member
 
Join Date: Dec 2002
Posts: 30
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Electrical refit

Depending on the replacement materials and labour rates, as well as how much old material can be re-used will determine the cost.

Don Casey has a good book on small boat electrics worth reading prior to making a decision. Don''t be surprised if a contractor quoted up to 5000 or more.

Spend your money on the materials, and learn to do it yourself, or at least do the grunt work yourself and bring in a pro at the end to do the final test and hookups.
splitmind is offline  
Quote Quick Reply Share with Facebook
post #4 of 4 Old 06-17-2004
Junior Member
 
Join Date: May 2002
Posts: 29
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Electrical refit

I agree. Get Casey''s book and dyi. I rewired my 1970 Mogan 35 last year. All anchor tinned wire and Blue Seas panels. I ran all the wire in conduit and increased the gauge of wire on just about everything. Cheap insurance. About the only wires I didn''t touch were for the overhead lights. The wires run between the fiberglass headliner and the coachhouse roof. No clean way to run new. 34 years of spaghetti was removed. I was amazed. Dead ends; wires that change both color and gauge halfway through a run, etc. There is nothing particularly difficult, but you''ll get plenty sore contorting your body into some of the spaces!
williamjchampion 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
Electrical Power Recharging Options for Extended Cruise Stormer Cruising & Liveaboard Forum 9 10-10-2006 02:07 PM
Another electrical question wallm Gear & Maintenance 1 06-29-2005 04:08 PM
Strange Electrical Fire knewell General Discussion (sailing related) 3 12-15-2003 11:38 AM
Electrical Upgrade keitha Gear & Maintenance 25 04-11-2003 12:38 PM
charter boat refit jsh1997 Boat Review and Purchase Forum 1 09-08-2001 04:22 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