Re-hooking up electronics

Narfa

Recruit
Joined
May 27, 2011
Messages
3
Thanks in advance to anyone that reads this, I've been a pretty avid browser of the forums for the past few months but I am now having some difficulty where I can't find answers.

(Long story)
My dad and my brothers and I have been pretty avid boaters since we were young. Last year, however, my dad passed away. My brothers and I are in the process of getting our boat in the water for the summer, but my father had usually been the one doing all the spring time preparations and maintenance as he was retired and spent most of the time up at the lake as soon as weather permitted. That means while my brothers and I know a lot about taking care of our boat (and what we didn't know we have filled in a lot with help from this website), there are somethings we are still learning).

(Cut to the chase)
When he died, friends at our marina did a lot of the work of winterizing our boat since we are all at least 3 hours from Lake Erie. One of my father's friends unhooked and took home the batteries. While that was helpful, no one seems to remember exactly how they were hooked up in the first place. We have them properly connected to the rest of the boat, as our bilge pump/horn/lights/blower etc work fine, our engine turns over etc]. However, the two problems we still have are:

1. We cannot raise or lower the outdrive
2. We cannot get our GPS/Radio/Depth Finder to power up

We figure it has to with the two sets of stray wires, one which I am fairly positive is a ground and a set of 3 wires. My brother and I are fairly smart and have had no trouble whatsoever until now, but I figured it would be better to ask for some advice before we tried anything.

I took some pictures in the hope this would explain more:

CIMG0092.jpgCIMG0093.jpgCIMG0094.jpg

Feel free to treat me with kid gloves and talk to me in complete layman's terms, I'm not too proud. If this is too risky to try to on our own, don't be afraid to tell me. We can always get a mechanic out here, but it seems like such a small, simple problem and we get a small measure of joy thinking our dad would be proud of us for doing it our own. However, he'd also get angry if we fried any of his gear :eek:

Thanks again!
 
Joined
Aug 4, 2010
Messages
61
Re: Re-hooking up electronics

It is impossible to tell what those wires go to from your pictures. Your best bet is to put a multimeter on them, figure what is power and what is ground. Then chase them back to where they connect, and go from there. Be sure there are fuses on all your power leads if they dont go through a fuse block or circut breaker. Good luck.
 

Fireman431

Rear Admiral
Joined
Sep 17, 2007
Messages
4,292
Re: Re-hooking up electronics

The third pic certainly appears to be a ground wire which is large enough to feed a 12v- bus bar. To be sure, if you're not comfortable using a multimeter, I suggest tracing them back thru the harness to find their attachment point.
 

Narfa

Recruit
Joined
May 27, 2011
Messages
3
Re: Re-hooking up electronics

I know for a fact that the lead with the three wires goes to the front circuit board in the dash of the boat. The thicker wire that I originally thought was a ground for the electronics goes to the hydraulic system in the back of the boat, but after checking the fluid levels I think that was the reason it wasn't going up or down (after originally hooking up the wire I heard the "wirring" of the motors moving but nothing was happening).
 

Silvertip

Supreme Mariner
Joined
Sep 22, 2003
Messages
28,771
Re: Re-hooking up electronics

Picture #1:
The big black cables are typically GROUND (negative) cables and therefore should be installed on the NEGATIVE post of the battery.

Picture #2:
Black and green are normall both associated with ground. Yellow may be the station memory/clock feed for the radio and as such would go to the POSITIVE terminal of the battery.

Picture #3:
Again, large black cables are typically GROUND cables. It and its corresponding red (POSITVE) cable should attach to the same battery.
 

Narfa

Recruit
Joined
May 27, 2011
Messages
3
Re: Re-hooking up electronics

You guys are lifesavers (possibly literally:p).

I wasn't aware the green wire would be a ground. Everything is up and working! Thanks so much for the help.
 

Rick.

Captain
Joined
Jul 30, 2006
Messages
3,740
Re: Re-hooking up electronics

If I were you I would buy a roll of red electrical tape and put some on every positive terminal wire and a black roll and do the same for each ground wire. From then on, no matter which brother does the job, it will be self explanatory. A wrong guess could be very expensive and/or frustrating. Best of luck. Rick.
 

Fireman431

Rear Admiral
Joined
Sep 17, 2007
Messages
4,292
Re: Re-hooking up electronics

Or create a wiring diagram/list of notes to keep with the boat papers (you should be keeping a log of any/all repairs on the boat). Glad everything worked out for you...now get on the water and have a toast to your dad!
 
Top