re wiring DC

rlambert
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re wiring DC

Postby rlambert » Fri Apr 13, 2018 9:33 am

Getting ready to re-do most of the DC wiring in our 73 28ft express. I have at least three places where wires are grounded to the hull!!!! the aft bilge, the trim tabs ,and the fuel gauge. I know theses need to be corrected among other things. Just looking for basic suggestions to get started such as wiring size to re run the grounds to a common ground. I assume I need a ground bus bar? and please clarify....do i ground the ground bus bar to the lug on the the bulkhead or the engine? what else might i put on my shopping list as i get started?

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shade2u2
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Location: Marietta, Ohio -mile marker 172

Re: re wiring DC

Postby shade2u2 » Fri Apr 13, 2018 10:03 am

I don't know the origin or accuracy of this - but I found it a while back. It might have come from someone here.
Maybe it will help.
http://www.geocities.ws/dougmrose/Marin ... eneric.pdf
John
1986 39 Sedan w/Crusader 454 & 1.92 drive.
1984 28 Express Hardtop FOR SALE
w/single 360 1.5:1 drive
Ohio and Muskingum Rivers (Marietta, OH)

jralbert
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Re: re wiring DC

Postby jralbert » Fri Apr 13, 2018 11:44 am

It looks like the geocities link just posted above by John (shade2u2) was created by Doug Rose. Doug used to be very active on the site and was regarded as very informed on electrical matters.
-joel-
former owner 1988 '32 FB Sedan
Chesapeake Bay
twin 318 / 240 hp
Potomac MD

rlambert
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Re: re wiring DC

Postby rlambert » Fri Apr 13, 2018 11:48 am

Wow that is amazing, I could have used this last year when I wired the inverter in our '32! Thanks!

javalin390
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Re: re wiring DC

Postby javalin390 » Fri Apr 13, 2018 8:50 pm

Awesome download. I found a single page copy for M's just surfing the net, but this one is great. Thanks John
Jim Elias
1974 37' SedanFlybridge
Twin 360 Chryslers.
Marblehead, Ohio

rlambert
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Re: re wiring DC

Postby rlambert » Sat Apr 14, 2018 5:25 pm

what gauge wire should i use for bilge and trim tabs?

MetalHead
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Re: re wiring DC

Postby MetalHead » Sun Apr 15, 2018 6:06 am

Electric or hydraulic?
1959 Family Cruiser - Sold - Gary Dick - 12/05/14
1963 Express 31x10 - Sold - Joe & Ginger Tabor - 01/21/2017
1963 Express 31x8.5 - In Dry Dock - Restore Underway
1987 Sportsman - On Rolling Slip - Ready To Go !!!
Big BigM 's Rule !!!
Columbiana, AL

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shade2u2
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Location: Marietta, Ohio -mile marker 172

Re: re wiring DC

Postby shade2u2 » Sun Apr 15, 2018 8:44 am

Here is another one from the same individual about wiring a 32 with perkins diesels. It looks much more detailed. I'm no electrical guy and have not reviewed it at all but maybe it could help someone.
http://www.geocities.ws/dougmrose/32_Ma ... inette.pdf

Does anyone know it the 32 with Perkins is still running around out there?
John
1986 39 Sedan w/Crusader 454 & 1.92 drive.
1984 28 Express Hardtop FOR SALE
w/single 360 1.5:1 drive
Ohio and Muskingum Rivers (Marietta, OH)

rlambert
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Joined: Sat Jun 17, 2017 1:06 am

Re: re wiring DC

Postby rlambert » Sun Apr 15, 2018 5:55 pm

hydraulic

railrunner04
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Re: re wiring DC

Postby railrunner04 » Sun Apr 15, 2018 7:16 pm

You never know what you'll find on a dc system once you start pulling wire I see a lot of dumbfounded head shaking in your future haha!

As far as the trim tab hydraulic pump we used 10 gauge wire Check out blue sea systems for panels if you happen to need any, really well worth the money cleans up the spaghetti of wires quite well.
Speaking of trim tabs the previous owner had wired them to the ignition power lead :shock: if you tried to adjust the tabs underway the port engine would just about die real exciting!
Moby Rick
FYC grosse ile mich
32ft F/B express
1971
T/318 Chrysler marine