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Re: Why upgrade to 12 volt?
SavannahDog #1260049 Sun Mar 25 2018 01:59 AM
Joined: Mar 2010
Posts: 9,390
5
Master Gabster
Originally Posted by SavannahDog
Yet, No one has addressed the simplicity of the Alternator (diodes, Regulator) inside. Compared to the Dynamo using brushes and a external voltage regulator.

That is the only reason I went to 12 volt alternator on my daily drivers. I am not smart enough, nor patient enough to troubleshoot a generator/voltage regulator.

Last edited by 52Carl; Sun Apr 01 2018 11:24 PM.
Re: Why upgrade to 12 volt?
AaronW #1261144 Sun Apr 01 2018 03:39 PM
Joined: Apr 2005
Posts: 2,596
C
Shop Shark
The reason I go to 12v on EVERYTHING is I'm cheap and I'm lazy. I don't have to do any special search for whatever part I need and the big box stores have them dirt cheap. Not so for a generator/regulator/battery for 6v application. Everything from fuel pump to cooling fan can be bought from the local FLAPS or cheap online.


Evan
Re: Why upgrade to 12 volt?
AaronW #1261167 Sun Apr 01 2018 08:44 PM
Joined: Apr 2005
Posts: 1,753
R
Shop Shark
I agree with Evan and Carl, it's the simplicity of the whole 12 Volt system and not having to worry about it going forward.
I did some work on a 41 Willys MB a couple of years ago. The family had owned it for 30 years and took it with them for camping & hunting trips. The current owner said they had starting and charging issues with it as long as he could remember. He said his dad parked it on a hill everywhere they went so they could be sure to get it started. I did a 12 volt conversion with a 10SI alternator along with a major tune up, brake work, and some other maintenance work and it has been going strong since.
Fred

Re: Why upgrade to 12 volt?
AaronW #1261171 Sun Apr 01 2018 09:16 PM
Joined: Sep 2001
Posts: 30,295
ace skiver
I used to park my 6v vehicles on hills (40 years ago), until I learned about incorrectly-sized battery cables AND straps, and until I learned about bad grounds/connections due to rust/corrosion.

My guesses regarding the cause of starting problems "unique/common to 6v":

75% of 6v starting problems - wrong straps/cables
20% of 6v starting problems - bad connections (there are 6-8 cable/strap connection points)
5% of 6v starting problems - bad/weak/old battery - one of my 6v Optima batteries has lasted over 14 years

I have no problems now starting my 6v vehicle, even after winter hibernation.

OF COURSE: if you need 12v devices that draw a lot of current, you would most likely want to completely convert 12v.


Tim
1954Advance-Design.com [1954advance-design.com]
1954 3106 Carryall Suburban [stovebolt.com] - part of the family for 49 years
1954 3104 5-window pickup w/Hydra-Matic [1954advance-design.com] - part of the family for 15 years
- If you have to stomp on your foot-pedal starter, either you, or your starter, or your engine, has a problem.
- The 216 and early 235 engines are not "splash oilers" - this is a splash oiler. [chevy.oldcarmanualproject.com]
Re: Why upgrade to 12 volt?
AaronW #1261187 Sun Apr 01 2018 11:33 PM
Joined: Mar 2010
Posts: 9,390
5
Master Gabster
I am as lazy as Even, but stupid to boot. One day I would like to build one of these trucks just as designed and maintain it just to be able to say that I did. I had one at one time, but plans got changed mid-build due to someone coming along with a pile of money to build it "his" way.

Re: Why upgrade to 12 volt?
AaronW #1261198 Mon Apr 02 2018 01:31 AM
Joined: Dec 2012
Posts: 208
E
Shop Shark
My '46 6400 is still 6v and will probably stay that way. I converted one of my farm tractors because everyone said that was the way to go, but it would have been easier to just replace the corroded battery cables. Granted the engine cranks faster than it idles, but my other tractor starts just as well on 6v as does the truck. The only downside I see is trailer lights, but most towing is done with my modern van.

Re: Why upgrade to 12 volt?
AaronW #1261199 Mon Apr 02 2018 01:33 AM
Joined: Sep 2001
Posts: 30,295
ace skiver
Ed,

Regarding: "The only downside I see is trailer lights, . . "

What is the downside regarding trailer lights?
What are the bulb size/code (sizes/codes)?


Tim
1954Advance-Design.com [1954advance-design.com]
1954 3106 Carryall Suburban [stovebolt.com] - part of the family for 49 years
1954 3104 5-window pickup w/Hydra-Matic [1954advance-design.com] - part of the family for 15 years
- If you have to stomp on your foot-pedal starter, either you, or your starter, or your engine, has a problem.
- The 216 and early 235 engines are not "splash oilers" - this is a splash oiler. [chevy.oldcarmanualproject.com]
Re: Why upgrade to 12 volt?
AaronW #1261234 Mon Apr 02 2018 10:34 AM
Joined: Sep 2013
Posts: 1,038
M
Shop Shark
Tim, the trailer light issue for me would be my trailers being pulled by multiple trucks (12 volt). Also most have 12v electric brakes. That said, I have considered building a light 2 axel trailer with 6v LED's and surge brakes for the 51 and it's 6 volt system.

RonR


1951 3600 with Clark flatbed, T5, 4.10 rear
1970 340 Duster
1990 5.0 V8 Miata (1990 Mustang Gt Drivetrain)
1951 Farmall Super A



Re: Why upgrade to 12 volt?
AaronW #1261240 Mon Apr 02 2018 11:54 AM
Joined: Sep 2001
Posts: 30,295
ace skiver
RonR,

I understand your concerns with trailer lights.

Superbright LEDs had almost all the side/marker and rear lights for my 54/55 6v (positive ground) COE flatbed.

The only lamps they did not have were various bright, mutli-LED lights/lamps, like back-up lamps (they might have them now).

https://www.superbrightleds.com/search/led-products/6v+led/

Also, there are dependable and inexpensive 6v to 12v power-converters that work quite well and reliably with 12v leds. The LEDs are easy power-draws for any voltage converters.



Tim
1954Advance-Design.com [1954advance-design.com]
1954 3106 Carryall Suburban [stovebolt.com] - part of the family for 49 years
1954 3104 5-window pickup w/Hydra-Matic [1954advance-design.com] - part of the family for 15 years
- If you have to stomp on your foot-pedal starter, either you, or your starter, or your engine, has a problem.
- The 216 and early 235 engines are not "splash oilers" - this is a splash oiler. [chevy.oldcarmanualproject.com]
Re: Why upgrade to 12 volt?
AaronW #1298283 Sun Feb 10 2019 02:32 AM
Joined: Oct 2018
Posts: 105
K
Shop Shark
My concern for my trailer which has all LED lights is the electric brakes on it which requires 12v. I would like to keep it 6v cause it starts right up and I haven't had any issues. Will an up converter from 6v to 12v work for the brakes or should I stick with my plan for 12v all together?

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