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Old 10-08-2018, 08:45   #1
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1974 C&C Viking 28 Wiring Diagram


This is my first post. I'm looking for a wiring diagram for a 1974 C&C Viking 28.

I have asked Mr. Google with no luck.

Thank you in advance for assistance.

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Old 10-08-2018, 16:53   #2
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Re: 1974 C&C Viking 28 Wiring Diagram

Following as I have the same boat, a '73. Minimal electrical system, my lighting runs go through under berths and lockers. Breaker panel is starboard on companionway bulkhead. Batteries below it/below berth. You may have part of the galley there as layouts varied. Good luck.
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Old 11-08-2018, 04:21   #3
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Re: 1974 C&C Viking 28 Wiring Diagram

Greetings and welcome aboard the CF, Nicholas.

I doubt there is such a thing as a (typical) wiring diagram for the V-28.
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Old 11-08-2018, 04:48   #4
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Re: 1974 C&C Viking 28 Wiring Diagram

I think you can do your own wiring diagram in an hour or so, there is not much wiring and it is not particularly hidden. BTW, the Viking was designed by C&C but was built by Ontario Yachts. They are good little boats.
Have taken on the restoration of the first Nonsuch, which was launched in 1978. Needs some deck work, hull compounding, and a bit of new gear.
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Old 11-08-2018, 09:48   #5
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Re: 1974 C&C Viking 28 Wiring Diagram

^^^Hi, Bruce!

I had a look behind the panel of one a few years ago and owned a Viking 33 with the same basic, '70s setup. "Diagram" would be a generous description for a rat's nest. Glass fuses and little throw switches galore and a mess of common positive wiring held together with tape and solder. Not to current, no pun intended, code. I would suggest you get a six-breaker modern board (Blue Sea makes decent ones and rewire the power feeds from the battery with a proper battery 1-2-BOTH-OFF switch and then leads to supply the (probably max) 20 amps at 12 VDC you'd need to power the couple of LED strips, LED nav lights and USB/socket charger you'd need to brighten up a Viking 28's five foot tall cabin. Oh, and whatever instruments and VHF you'd need. You might be able to reuse the original 18 to 22 ga. wire runs to the nav lights, but they weren't always tinned and therefore may be hazardous. Getting rid of every incandescent bulb will help.

You should study general electrical wiring principles before tackling this and fuse for the wire size, not the load. Calder and Wing's books are good.
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Old 11-08-2018, 10:25   #6
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Re: 1974 C&C Viking 28 Wiring Diagram

I'll second Alchemeys post. Get a modern panel, preferably with a couple of cigarette lighter sockets. The portable fridges, hand held VHS radios, cellphones, etc etc all will have an adapter for those 12v sockets. Go LED lighting inside right away and later outside. Plan ahead, spare breaker for fixed radio, one for a spreader light, one for depth finder, V-berth fan and so on. Figure out where you'll connect in a solar panel, 80-100Watts would be fine. And buy the proper marine wire for your runs. The heavy high current runs are only needed to feed the starter. Use the both/2/1/none switch to select starter battery. A house battery and a starting battery are sufficient initially. Add another house battery if needed. My panel is wired/fused to the house battery, and is powered directly from it. As long as the main switch is never set to "both" I don't kill the starting battery. I can't access the starter battery to power the house otherwise. I never use the "both" selection as it will pull down the rpms on my little 9hp Yanmar diesel enough to notice at idle. Amazon has Perko and Blue Sea selectors if needed. And panels.
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