Go Back   The Ford Barn > General Discussion > Model A (1928-31)

Sponsored Links (Register now to hide all advertisements)

Reply
 
Thread Tools Display Modes
Old 11-11-2019, 11:44 AM   #21
The Master Cylinder
Senior Member
 
The Master Cylinder's Avatar
 
Join Date: Aug 2012
Location: SoCal
Posts: 296
Default Re: 8 volt battery in 6 volt car

Click on his name and it brings up more videos.Not all about Model As but 'interesting'.
__________________
The Master Cylinder

Enjoying life at the beach in SoCal...

Last edited by The Master Cylinder; 11-11-2019 at 11:51 AM.
The Master Cylinder is offline   Reply With Quote
Old 11-11-2019, 12:05 PM   #22
Bob C
Senior Member
 
Join Date: May 2010
Location: So Cal
Posts: 6,496
Default Re: 8 volt battery in 6 volt car

What an idiot that guy is.
Bob C is offline   Reply With Quote
Sponsored Links (Register now to hide all advertisements)
Old 11-11-2019, 12:13 PM   #23
captndan
Senior Member
 
captndan's Avatar
 
Join Date: Nov 2015
Location: Tennessee
Posts: 694
Default Re: 8 volt battery in 6 volt car

I ask the same question awhile back. The replies were a resounding DONíT DO IT!
captndan is offline   Reply With Quote
Old 11-11-2019, 12:23 PM   #24
Magicbox51
Senior Member
 
Magicbox51's Avatar
 
Join Date: Jun 2017
Location: Walla Walla, WA
Posts: 572
Default Re: 8 volt battery in 6 volt car

Quote:
Originally Posted by The Master Cylinder View Post
Click on his name and it brings up more videos.Not all about Model As but 'interesting'.
Oh my. Pretty 'interesting', all right. Kind of nutty.
__________________
-Bill G
Magicbox51 is offline   Reply With Quote
Old 11-11-2019, 03:32 PM   #25
sofield
Member
 
Join Date: Aug 2013
Location: Long Island NY
Posts: 40
Default Re: 8 volt battery in 6 volt car

I am just looking for a knowledge based cause and effect of this set up has on the various electrical components of a Model A.
Sofield
sofield is offline   Reply With Quote
Old 11-12-2019, 01:19 PM   #26
JoeCB
Member
 
JoeCB's Avatar
 
Join Date: Nov 2018
Location: Farmington MI
Posts: 55
Default Re: 8 volt battery in 6 volt car

Change this , change that , boost up whatever??? I don't know! , I guess that I have just been darn lucky. Drain the water in the fall, push it in the garage, roll it out in the spring add water ( the WPL) and starts right up … every time for the last 49 years. All stock , like Henry built it. Only one road incident in all that time and 13,000 miles - stopped … bad condenser.

Joe B 31 Coupe
JoeCB is offline   Reply With Quote
Old 11-12-2019, 02:56 PM   #27
DD931
Senior Member
 
DD931's Avatar
 
Join Date: May 2010
Location: PA Poconos
Posts: 692
Default Re: 8 volt battery in 6 volt car

Millions of Model A's (and later v-8's) were built and ran very happily on 6 volts. It ain't broke!! It doesn't need to be fixed!! Going to higher voltages masks problems. It doesn't fix them.
DD931 is offline   Reply With Quote
Old 11-12-2019, 05:04 PM   #28
Chuck Sea/Tac
Senior Member
 
Chuck Sea/Tac's Avatar
 
Join Date: May 2010
Location: Between Seattle & Tacoma
Posts: 1,778
Default Re: 8 volt battery in 6 volt car

I would have to say, stick with 6 V, clean all your connections, make sure your battery cables are good, and it’ll crank over like crazy. In my opinion eight volts is just a Band-Aid fix to cover up another problem.
PS. I’m going to install a bolt in my vacuum port to adjust my timing.
Chuck Sea/Tac is offline   Reply With Quote
Old 11-12-2019, 05:20 PM   #29
Magicbox51
Senior Member
 
Magicbox51's Avatar
 
Join Date: Jun 2017
Location: Walla Walla, WA
Posts: 572
Default Re: 8 volt battery in 6 volt car

In my opinion, converting to 8 volts is either a band-aid or it is dinking with something that ain't broke just for the sake of doing it.
__________________
-Bill G
Magicbox51 is offline   Reply With Quote
Old 11-12-2019, 05:21 PM   #30
Magicbox51
Senior Member
 
Magicbox51's Avatar
 
Join Date: Jun 2017
Location: Walla Walla, WA
Posts: 572
Default Re: 8 volt battery in 6 volt car

Quote:
Originally Posted by Chuck Sea/Tac View Post
.....PS. Iím going to install a bolt in my vacuum port to adjust my timing.

Now, why didn't Ford think of that?
__________________
-Bill G
Magicbox51 is offline   Reply With Quote
Old 11-12-2019, 10:54 PM   #31
30 Closed Cab PU
Senior Member
 
Join Date: Aug 2018
Location: Wisconsin
Posts: 1,607
Default Re: 8 volt battery in 6 volt car

Think of using an 8v battery as the 6V components have to run at voltage and power d1ssapation up to 25 % more than they were rated for. Example - the starter spins faster with more power and the bendix smacks into the flywheel with more force - can it take it? Maybe or maybe not, but they were not designed for the extra force.
30 Closed Cab PU is offline   Reply With Quote
Old 11-13-2019, 07:59 AM   #32
Keith True
Senior Member
 
Keith True's Avatar
 
Join Date: May 2010
Location: Epping N.H.
Posts: 2,409
Default Re: 8 volt battery in 6 volt car

Were 6 and 8 volt bulbs marketed separately? This has got me to thinking,I have some NOS bulbs,and they are marked 6-8 volt.I have an old Tung-Sol bulb display,that just says 6-8 volt also.While I've never actually looked,I can't recall seeing any 8 volt specific bulbs.I have a big Marquett battery charger,I know it says 6-8 volt on the tag so I gave it another look.there is no switch for the 6 or 8 volt.I drove a 50 Ford pickup for a couple of years that had an 8 volt battery in it.An old mechanic told me that if I took the time to check I would probably find that the battery was being maintained at 6 volts by the stock charging system.He said the 8 volt battery was most likely a feel-good thing by the previous owner.
Keith True is offline   Reply With Quote
Old 11-13-2019, 09:46 AM   #33
Badpuppy
Senior Member
 
Join Date: Dec 2017
Location: Guthrie, OK
Posts: 515
Default Re: 8 volt battery in 6 volt car

I suspect the 6-8V spec was a feel-good thing pushed by Edison and Westinghouse. They're 6V bulbs. Obviously, running them consistently at 8V will shorten their life.
Badpuppy is offline   Reply With Quote
Old 11-13-2019, 11:01 AM   #34
eagle
Senior Member
 
eagle's Avatar
 
Join Date: Aug 2011
Location: Eagle Bend, MN
Posts: 1,506
Default Re: 8 volt battery in 6 volt car

If you want to run an 8 volt battery its simple enough to build a 2 volt voltage reducer with 3 power diodes in series. Check the maximum current draw, then use diodes that are rated for at least double that. Ex: 70 amp diodes are about $5 each on ebay. I don't see any need myself to use anything besides 6V but if its your car, do as you want. Maybe if you have a leaky carb the 8 volt battery will seal it up?
__________________
"There are some that can destroy an anvil with a teaspoon and shouldn't be allowed to touch anything resembling a tool."
eagle is online now   Reply With Quote
Old 11-13-2019, 04:28 PM   #35
Magicbox51
Senior Member
 
Magicbox51's Avatar
 
Join Date: Jun 2017
Location: Walla Walla, WA
Posts: 572
Default Re: 8 volt battery in 6 volt car

We buy all these neat old cars and want to experience the unique-ness of having a Model A. Isn't it kind of baffling that one of the first things many of us want to do is mess with some of the basic parts?
__________________
-Bill G
Magicbox51 is offline   Reply With Quote
Old 11-23-2019, 10:26 AM   #36
DHZIEMAN
Senior Member
 
Join Date: Dec 2016
Location: Sunrise Beach, Mo
Posts: 356
Default Re: 8 volt battery in 6 volt car

I have used an 8 volt battery on an old 6 volt tractor, just because it was an easy choice to keep the tractor starting well. But on a Model A, considering, there is a reason 6 volts is not doing the job. I would venture the light bulbs will take the extra voltage but, my choice on my model A would be to figure out why 6 volts was not functioning right. Got a lot investing this ole girl and 6 volts should work.
DHZIEMAN is offline   Reply With Quote
Old 11-23-2019, 12:02 PM   #37
Purdy Swoft
Senior Member
 
Purdy Swoft's Avatar
 
Join Date: May 2010
Location: Alabama
Posts: 7,466
Default Re: 8 volt battery in 6 volt car

Six volts will work , there really doesn't have to be a problem . There is such a thing as an improvement . My reason for setting up my roadster on twelve volts was that I p[refer a more powerful twelve volt system for the same reasons that most vehicles changed to twelve volts over sixty years ago .

Twelve volt bulbs are readily available . I have NEVER had a problem with the original MODEL A generator or starter when used on twelve volts . I run mine positive ground and no wires will need to be changed or reversed . The biggest thing is installing a twelve volt battery and either using a three OHM coil or installing a resister at the six volt coil . I am now using the Fun Projects twelve volt can style voltage regulator with good results . I have also used the original type cut out on twelve volts . My repro horn blows strong enough on twelve volt to be a good warning device when needed Most six volt accessories will need a voltage resister .

If a person wants to run negative ground It will be necessary toi reverse the wire connections at the ammeter and the coil . Of course the battery will also need to be hooked up negative ground .
Purdy Swoft is online now   Reply With Quote
Old 11-23-2019, 12:09 PM   #38
Y-Blockhead
Senior Member
 
Y-Blockhead's Avatar
 
Join Date: Jul 2011
Location: Redondo Beach, CA
Posts: 3,952
Default Re: 8 volt battery in 6 volt car

Quote:
Originally Posted by Magicbox51 View Post
We buy all these neat old cars and want to experience the unique-ness of having a Model A. Isn't it kind of baffling that one of the first things many of us want to do is mess with some of the basic parts?
Isn't that the way it has always been with the Model A? Look at all the accessories that where available "back in the day".

If you get a chance, check out the book "Those Wonderful Unauthorized Accessories for the Model A Ford". https://www.snydersantiqueauto.com/P.../model-a-books Fun read.
__________________
Y-Blockhead
'30 Briggs Town Sedan
'55 Ford Ranchwagon
_________________________________
And once again that is just my 1Ę worth.


https://www.youtube.com/watch?v=aH2TvmjxIFM

Last edited by Y-Blockhead; 11-23-2019 at 12:16 PM.
Y-Blockhead is offline   Reply With Quote
Old 11-23-2019, 12:53 PM   #39
1931 flamingo
Senior Member
 
1931 flamingo's Avatar
 
Join Date: May 2010
Location: new britain,ct 06052
Posts: 8,214
Default Re: 8 volt battery in 6 volt car

I've got a 40 coupe, still 6 volt, hi-comp heads, dual 97's, headers, electronic ign., a proper grp 2 battery. Spins over just fine ! !
I cleaned ALL the grounds and cables and added another ground strap from the intake to body ground. No problems. FWIW 8V is a bandaid. JMO
Paul in CT
1931 flamingo is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Sponsored Links (Register now to hide all advertisements)


All times are GMT -5. The time now is 07:30 PM.