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6 volt to 12 volt conversion
Just popping in
Joined:
5/28 19:39:40
From NORTHERN CA.
Posts: 2
I have 50' standard 8. Having trouble starting it, engine is laboring..Starter, generator and carburetor rebuilt..

It was suggested to convert to 12 volt system to give it more kick.

planning on changing out voltage regulator, coil, generator and bulbs. Keeping starter at 6 volt.

Do I have to change out wiring too? or can I leave it?

Posted on: 11/18 23:40:55
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Re: 6 volt to 12 volt conversion
Just can't stay away
Joined:
2012/2/18 13:14
From Boone, North Carolina
Posts: 80
Probably just causing yourself more problems changing voltage, adding additional problems rather than solving the present ones.

Generally 6 volt uses heavier wire than 12 volt as it carries more amps at the lower voltage.

Check battery cables to be sure that the terminals on both ends are clean and check that you are not using a light weight 12 volt cables. 12 volt cables appear to be maybe 3/8 inch around while 6 volt are closer to 5/8 - 3/4 in size to carry the load.

Just a suggestion, check the timing, hard to describe, but when you say laboring, timing can give that feeling that the engine is fighting itself when cranking.

Posted on: 11/19 4:35:32
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Re: 6 volt to 12 volt conversion
Home away from home
Joined:
2013/5/23 12:44
From Tampa Bay, Florida
Posts: 116
I'm in the process of converting my "49 Club Sedan to 12 volt. It's not a simple conversion to do it right. I've seen a lot of hacked up conversions where people try to mate 12 volt to old wiring and components. My car is currently 6 volt positive ground and has an 6 volt alternator and all new wiring. I'm converting it to set it up for a Vintage Air AC system, Newport electric windshield wipers and a modern gauge set for the speedometer and four gauges. I'll post the conversion on the Packard Club Forum.

Posted on: 11/19 5:51:14
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Re: 6 volt to 12 volt conversion
Home away from home
Joined:
2013/5/7 13:42
From Scottsdale, Arizona, United States
Posts: 483
Good Morning...You should have double 00 size cables.


If you have old ones, they can have corrosion inside them that will mess up the power coming through them.


A humble suggestion is to purchase three new cables and take the third one from the positive ground to the frame...You can use Marine Terminals,from Napa, to make it easy to attach the second ground cable...

The extra ground cable really makes a difference. I have one on both my 49 Packard and 31 Ford. They both start easy...

also the above comment regarding timing is right on the money... Have a great Packard day. Ernie in Arizona

Posted on: 11/19 7:15:00
_________________
Caretaker of the 1949-288 Deluxe Touring Sedan
'Miss Prudence' and the 1931 Model A Ford Tudor 'Miss Princess'
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Re: 6 volt to 12 volt conversion
Forum Ambassador
Joined:
2007/5/20 1:34
From Bowral, Southern Highlands of NSW, Australia
Posts: 10246
G'day ORAYA,
to PackardInfo and, I invite you to include your '50 Packard Eight in the Packard Owner's Registry.

Posted on: 11/19 11:57:34
_________________
Mal
/o[]o\
====


"Out of chaos comes order" - Nietzsche.

'38 Eight Sedan 38's are great! (Sold July 2009)
'41 120 Club Coupe 41's the One! (Sold October 2017)
'48 2222 "Almost" Rolling Limo Chassis and Engine (Sold Sept 2019)
'50 Eight Touring Sedan

Project Blogs:
'41 120 Club Coupe - Locked
Wade's Workshop - Locked
'50 Eight Touring Sedan

What's this? >>>>>> FAQ - Add your Packard to the Owners Registry
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Re: 6 volt to 12 volt conversion
Home away from home
Joined:
2007/3/30 7:53
From Kansas City, MO
Posts: 1588
Just be aware that there have been a few reports over the years of 6 volt starters breaking the snout off when the bendix gear slams into the end under the additional speed caused by 12 volts. This may not happen to you but... it has happened.

Attach file:



jpg  Broken Nose.jpg (27.66 KB)
188_5dd5cb202ec56.jpg 500X375 px

Posted on: 11/20 15:24:26
_________________
JD
1941 180 Limousine
1949 Custom Sedan (22nd Series)
1950 Custom Sedan
And... when they're runnin'... I drive 'em!
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Re: 6 volt to 12 volt conversion
Forum Ambassador
Joined:
2007/3/14 16:01
From New Jersey
Posts: 15719
ORAYA, the 6-volt system was completely capable and competent when new and unless you are planning on adding A/C, I suggest you bring the 6-volt system back to specification and avoid the problems that often arise with incomplete or incorrectly done conversions.

Posted on: 11/20 15:43:05
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Re: 6 volt to 12 volt conversion
Home away from home
Joined:
2013/5/23 12:44
From Tampa Bay, Florida
Posts: 116
Also adding 12V electric windshield wipers.

Posted on: 11/21 5:34:59
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Re: 6 volt to 12 volt conversion
Just popping in
Joined:
5/28 19:39:40
From NORTHERN CA.
Posts: 2
Thanks for all the replies. Going to try this first:
I am putting in new 6 volt ignition coil, replacing the original. Switching out battery to new 6 volt Optima Red Top battery (800 cold cranking amps), and putting in 00 size cables...(Had 1 gauge) Engine hasn't started in 40 years, sat garaged. BUT it did run when it was last parked..

Posted on: 11/22 23:20:46
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Re: 6 volt to 12 volt conversion
Forum Ambassador
Joined:
2007/5/20 1:34
From Bowral, Southern Highlands of NSW, Australia
Posts: 10246
for including your '50 Eight Sedan in the Registry.

Posted on: 11/23 0:48:36
_________________
Mal
/o[]o\
====


"Out of chaos comes order" - Nietzsche.

'38 Eight Sedan 38's are great! (Sold July 2009)
'41 120 Club Coupe 41's the One! (Sold October 2017)
'48 2222 "Almost" Rolling Limo Chassis and Engine (Sold Sept 2019)
'50 Eight Touring Sedan

Project Blogs:
'41 120 Club Coupe - Locked
Wade's Workshop - Locked
'50 Eight Touring Sedan

What's this? >>>>>> FAQ - Add your Packard to the Owners Registry
Transfer the post to other applications Transfer







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