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Old 25 April 2014, 13:23   #1
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Advice needed on whether to self rewire boat

Looking at rewiring my boat completely as the boat has been bodged and unloved by previous owners.

I spent most of last weekend pulling wires out of the boat which have no use anymore but were just in situ by previous bodgers. Wiring in total probably 20-30 metres in length have been removed.
Old nav light wires, gps wires, sounder wires, fuel tank wires, vhf wires, etc etc.

So due to this and the poor attempt at wiring connections still in the console (halfords crimps and electrical tape) I'm looking at starting again seeing as I cannot guarantee the remaining wiring is even correctly installed.

Pics of current setup








My setup is

1999 Mercury 135 v6 with loom upto commander 2000 control with tilt control

Mercury Analogue Dials I currently have installed

Revs.

Speedo.

Trim.

Fuel level.

Temp.

Nav lights.

Also with the rewiring I'm also wanting to install my new purchases which are a

Icom M323 vhf dsc.

Garmin 451s plotter/sounder.

So my question is is the job do able with my current small knowledge of wiring and wiring diagrams. (I can follow motorbike diagrams and do some wiring on my bike)

And if it is what will I need wire wise, connectors, etc etc.

Do you need to solder as well as I have never soldered and always got round soldering with using crimps or superseal connectors.

Thanks Ross....
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Old 25 April 2014, 13:32   #2
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I would have ago yourself, it's not that hard to do as long as you're methodical, you can get any cable crimps etc you want from the likes of Vehicle Wiring Products, they can supply the crimp connectors with the heat seal ends or you can use standard crimps with heat shrink tubing, either will be better than just standard crimps, solder connections are the best but take a lot onager to do and if you're not used to it can end up proper than crimped connections. just leave yourself plenty of time, draw out what you want to do, leave extra cable so you can make up a loom outside of the console then just fit it in one go, leave the existing engine wiring loom in place if it's in good condition as that would be a hole different ball game to replace as a DIY job
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Old 25 April 2014, 13:56   #3
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Can't see a fuse in sight, argh!
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Old 25 April 2014, 14:04   #4
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fuses are for wimps Biff

I've just bought a Bluesea fuse block for my SR4, dead easy to fit n looks like it will do just what I'm after, good kit
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Old 25 April 2014, 14:09   #5
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Blue sea now makes breaker block too. Takes the snap in breakers. Very cool.

Jason
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Old 25 April 2014, 14:54   #6
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Quote:
Originally Posted by Solent Bombard View Post
Looking at rewiring my boat completely as the boat has been bodged and unloved by previous owners.

I spent most of last weekend pulling wires out of the boat which have no use anymore but were just in situ by previous bodgers. Wiring in total probably 20-30 metres in length have been removed.
Old nav light wires, gps wires, sounder wires, fuel tank wires, vhf wires, etc etc.

So due to this and the poor attempt at wiring connections still in the console (halfords crimps and electrical tape) I'm looking at starting again seeing as I cannot guarantee the remaining wiring is even correctly installed.

Thanks Ross....
LOL, looks like a typical ex-dive club boat!
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Old 25 April 2014, 16:31   #7
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Make sure you use tinned wire. It will cost you a little more (not to bad if bought from a trade supplier like Aquafax) bit will save a lot of problems down the line as it won't go green and corrode like conventional wire.
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Old 26 April 2014, 05:30   #8
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Does anyone have a wiring diagram for the setup with just the gauges as I could look because I could start to check if the boat is even wired up right.
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Old 26 April 2014, 10:41   #9
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This will help
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Old 27 April 2014, 16:28   #10
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Thanks for digging out those diagrams nugent i can certainly use them for rebuilding my wiring as it seems the wire colours are mostly the same.

here is my current wiring diagram of the current setup on my boat.
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