Alternator 3G Upgrade Wiring Diagram Question(s) |
Post Reply |
Author | |
Plan B
Groupie Joined: April-23-2013 Location: Clearwater, FL Status: Offline Points: 48 |
Post Options
Thanks(0)
Posted: April-07-2015 at 8:34pm |
Hello Guys!
I'm upgrading my alternator to a 1 wire setup...my boat has had 30+ years of backyard garage work done to it so I took sometime and drew up how I intend the final outcome to be before I reconnect the battery. Please let me know if this looks correct or if my boat is going to burn down to the bottom of the sea. Any help or conformation would be greatly appreciated. I have a 1981 SN w/ 351W RH Mallroy dizzy - YLU554DV with Mallory ballast resistor Upgrading my battery cables to 1guage..I hope this isn't overkill in an unproductive way. Cable from alt is a 4 gauge wire. I have a stereo with 2 amps pushing 1200w max. |
|
Bri892001
Grand Poobah Joined: September-27-2008 Location: Boston MA Status: Offline Points: 4945 |
Post Options
Thanks(0)
|
As far as the gauge wire, there is no such thing as too thick, as long as it's not too cumbersome to fit throughout the openings it needs to fit through.
|
|
Plan B
Groupie Joined: April-23-2013 Location: Clearwater, FL Status: Offline Points: 48 |
Post Options
Thanks(0)
|
Woohoo! I got one thing right...correctcraftfans, do I have TWO things right?!
|
|
Bri892001
Grand Poobah Joined: September-27-2008 Location: Boston MA Status: Offline Points: 4945 |
Post Options
Thanks(0)
|
Let's see here, I'll post the standard diagram and do some comparisons:
|
|
Bri892001
Grand Poobah Joined: September-27-2008 Location: Boston MA Status: Offline Points: 4945 |
Post Options
Thanks(0)
|
I would say you're good as long as the alternator doesn't need additional grounding (it's probably covered through the bracket but just to mention).
I don't see anything obviously wrong. You'll know for sure when you start it up and put a VOM on your battery. |
|
Plan B
Groupie Joined: April-23-2013 Location: Clearwater, FL Status: Offline Points: 48 |
Post Options
Thanks(0)
|
Thanks for the reply Brian,
I'm guessing it's grounded through the frame as well, it's truly a one wire hook up like it claims. I've read of a few others doing this upgrade (hopefully an "upgrade") but haven't heard of any horror/success stories in the boating world, many success stories in the auto world. I can say I really like the way it cleans up the engine compartment, removed external voltage regulator all together, which does away with a lot of wiring. I've been battling voltage spike issues since I've had the boat. I also installed Mallory 29371 Circuit Guard inline with the distributor feeds. All is ready to rock, just waiting on my battery cables which should be here friday. My fingers are crossed, I want to ski SO badly! |
|
Mountain Man
Senior Member Joined: May-09-2014 Location: Brevard, NC Status: Offline Points: 124 |
Post Options
Thanks(0)
|
This forum continues to amaze me with the wealth of information. The timing is perfect as well. I am preparing to rewire a Fish Nautique using a 100A one wire alternator and one wire Davis Unified Distributor (two wires counting the tach output). Anyway thanks to the contributors of this posts as both of these diagrams are most helpful.
Steve |
|
Plan B
Groupie Joined: April-23-2013 Location: Clearwater, FL Status: Offline Points: 48 |
Post Options
Thanks(0)
|
After replacing new module in my dizzy, removing voltage regulator, and updating to a 1 wire HO alternator, she turned over and ran great first turn of the key (what a great feeling). I get a constant 14.5 at the battery at idle and higher RPM's. Hopefully this will fix all the electronic issue I've been struggling with over the past couple years, time will tell.
Ryan. |
|
Bri892001
Grand Poobah Joined: September-27-2008 Location: Boston MA Status: Offline Points: 4945 |
Post Options
Thanks(0)
|
Good news. That sounds like good output. Hopefully it all works out.
|
|
Post Reply | |
Tweet
|
Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |