The Ford Barn

russcc · 03-20-2012, 07:20 PM

Put an '53 8RT in a 29 roadster. The engine has an original generator I want to convert to 12V. Who makes 12V conversion field coils, and what else do you need to do to the generator, if anything ? I understand the other electrical issues, it is just the orig. generator conversion I am concerned with. Thank you Fordbarners.

Flat Ernie · 03-20-2012, 08:05 PM

You can get field coils for most '56 and newer Ford products. Patrick's used to sell them - don't know if they do or not. I used to see them pop up on eBay once in a while (I bought a NOS set for my last conversion).

You will also need a voltage regulator....I try to use a smaller 30A one with the field-coil-only conversions.

JM 35 Sedan · 03-22-2012, 07:14 AM

I have seen those coils advertised in several old Ford part suppliers catalogs. I have occasionally wound my own generator coils. Made an inexpensive wooden bobbin winding mold and wound new coils with modern high temperature insulated magnet wire. To wind 12v coils I wound twice the number of turns and half the wire size (diameter) used in the six volt coil. The advantage I had at the time was working for a company that made motors so I could get as much magnet wire in any wire gauge that I needed.

richard crow · 03-22-2012, 08:06 AM

i have read that the 6v gen will work without changing the feld coils as long as a12v voltage regulator is used. may be some one on this site has tried it .i never did try it

Flat Ernie · 03-22-2012, 08:24 PM

Quote:

Originally Posted by richard crow

i have read that the 6v gen will work without changing the feld coils as long as a12v voltage regulator is used. may be some one on this site has tried it .i never did try it

This can work depending on the resistance of the field coils...

Juergen · 03-22-2012, 08:34 AM

Sponsored Links (Register now to hide all advertisements)

An easy way is to get a 56 up generator and swap the field coils. The coils have a hard time going bad.

Karl Wolf · 03-22-2012, 11:04 AM

I just use a 56^ generator barrel, armature and rear plate- trimmed to the barrel size... Front plate bolts right on, watch the spacing- seems I had to put a spacer to keep the armature away from the front plate... I like having the ball bearing rear.

Have found 56 up generators at the swaps for $5 a few times, so I buy them when I can...
Karl

Straightpipes · 03-22-2012, 08:09 PM

I put 12 volt field coils in my 8BA generator. Then used a 12 volt Ford regulator. Works good. Remember that you will not have full amperage because you are still using the 6 volt armature which has fewer windings.

Ralph Moore · 03-23-2012, 08:35 AM

Here's the PN for the 12v field coils I'm using; B6AZ-10175-D

WRA · 12-10-2012, 07:24 AM

I picked up the following parts for my fan mount generator converion, should know more this weekend but initial review shows that the Armature is too short for the fan mounted application Im trying to build. May fit but wont be able to use the nut, just pully pressed on. Parts cost me arount $70 shipped.

1- C1TZ-10005-A ARMATURE
1- C1AZ-10069-A BRUSH SET
1- D6AZ-10175-A FIELD COIL
1- 8BA-10094 FRONT BEARING
1- B6A-10095-A REAR BEARING 1963 1964
1- C3AZ-10050-A Generator Rear End Plate and Brush Assembly

68HILLBILLY · 12-12-2012, 02:52 AM

GOT mine from certified auto electric in OH . www.certifiedautoelectric.com. they advertise in early v8 magazine.

03-20-2012, 07:20 PM	#1
russcc Senior Member Join Date: May 2010 Posts: 2,871	6V to 12V generator field coils Put an '53 8RT in a 29 roadster. The engine has an original generator I want to convert to 12V. Who makes 12V conversion field coils, and what else do you need to do to the generator, if anything ? I understand the other electrical issues, it is just the orig. generator conversion I am concerned with. Thank you Fordbarners.

03-20-2012, 08:05 PM	#2
Flat Ernie Senior Member Join Date: May 2010 Location: 74FL Posts: 323	Re: 6V to 12V generator field coils You can get field coils for most '56 and newer Ford products. Patrick's used to sell them - don't know if they do or not. I used to see them pop up on eBay once in a while (I bought a NOS set for my last conversion). You will also need a voltage regulator....I try to use a smaller 30A one with the field-coil-only conversions. __________________ Daddy always said, "If yer gonna be dumb, you gotta be tough" and I'm one tough sumbitch! T5 Tech

03-22-2012, 07:14 AM	#3
JM 35 Sedan Senior Member Join Date: May 2010 Location: Near Rising Sun, Maryland Posts: 10,876	Re: 6V to 12V generator field coils I have seen those coils advertised in several old Ford part suppliers catalogs. I have occasionally wound my own generator coils. Made an inexpensive wooden bobbin winding mold and wound new coils with modern high temperature insulated magnet wire. To wind 12v coils I wound twice the number of turns and half the wire size (diameter) used in the six volt coil. The advantage I had at the time was working for a company that made motors so I could get as much magnet wire in any wire gauge that I needed. __________________ *John* *"Never give up on what you really want to do. The person with big dreams is more powerful than one with all the facts". Albert Einstein*

03-22-2012, 08:06 AM	#4
richard crow Senior Member Join Date: May 2010 Posts: 1,863	Re: 6V to 12V generator field coils i have read that the 6v gen will work without changing the feld coils as long as a12v voltage regulator is used. may be some one on this site has tried it .i never did try it

03-22-2012, 08:34 AM	#6
Juergen Senior Member Join Date: May 2010 Posts: 527	Re: 6V to 12V generator field coils Sponsored Links (Register now to hide all advertisements) An easy way is to get a 56 up generator and swap the field coils. The coils have a hard time going bad.

03-22-2012, 11:04 AM	#7
Karl Wolf Senior Member Join Date: May 2010 Location: Mill Valley,Ca. Posts: 1,539	Re: 6V to 12V generator field coils I just use a 56^ generator barrel, armature and rear plate- trimmed to the barrel size... Front plate bolts right on, watch the spacing- seems I had to put a spacer to keep the armature away from the front plate... I like having the ball bearing rear. Have found 56 up generators at the swaps for $5 a few times, so I buy them when I can... Karl

03-22-2012, 08:09 PM	#8
Straightpipes Senior Member Join Date: May 2010 Location: Ballston Spa, NY Posts: 789	Re: 6V to 12V generator field coils I put 12 volt field coils in my 8BA generator. Then used a 12 volt Ford regulator. Works good. Remember that you will not have full amperage because you are still using the 6 volt armature which has fewer windings.

03-23-2012, 08:35 AM	#9
Ralph Moore Senior Member Join Date: Oct 2010 Location: North Pole, Alaska Posts: 1,470	Re: 6V to 12V generator field coils Here's the PN for the 12v field coils I'm using; B6AZ-10175-D

12-10-2012, 07:24 AM	#10
WRA Senior Member Join Date: Sep 2010 Location: Texas Posts: 394	Re: 6V to 12V generator field coils I picked up the following parts for my fan mount generator converion, should know more this weekend but initial review shows that the Armature is too short for the fan mounted application Im trying to build. May fit but wont be able to use the nut, just pully pressed on. Parts cost me arount $70 shipped. 1- C1TZ-10005-A ARMATURE 1- C1AZ-10069-A BRUSH SET 1- D6AZ-10175-A FIELD COIL 1- 8BA-10094 FRONT BEARING 1- B6A-10095-A REAR BEARING 1963 1964 1- C3AZ-10050-A Generator Rear End Plate and Brush Assembly

12-12-2012, 02:52 AM	#11
68HILLBILLY Member Join Date: May 2010 Location: kingston ky Posts: 99	Re: 6V to 12V generator field coils GOT mine from certified auto electric in OH . www.certifiedautoelectric.com. they advertise in early v8 magazine.