Author Topic: Voltage Regulator Stamping  (Read 1282 times)

Offline ChrisV289

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Voltage Regulator Stamping
« on: May 26, 2017, 07:27:04 PM »
What is the correct voltage regulator stamping supposed to be on a Oct 64 build fastback 289 w/ AC?  I see yellow Autolite, white Autolite, and white Fomoco script are offered. 
Chris
1965 Honey Gold Fastback (SJ 10/29/64)
1965 Caspian Blue Fastback (SJ 06/03/65)
2009 V6 Mustang Coupe

Offline J_Speegle

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Re: Voltage Regulator Stamping
« Reply #1 on: May 26, 2017, 08:09:42 PM »
Believe you will find the that yellow silver   printing was for standard (AF engineering number)  and silver yellow for the heavy duty (TF engineering number)  for cars with that option, bigger battery, larger alternator amps ...

There was a issue with the early voltage regulators sorry can't recall the month and year of the change)  Voltage regulators after that date were marked with a yellow paint daub on the cover. Will try and remember to find that info and post. Wrote an article for MCA decades ago that included that info
« Last Edit: May 27, 2017, 12:05:07 AM by J_Speegle »
Jeff Speegle

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Offline J_Speegle

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Re: Voltage Regulator Stamping
« Reply #2 on: May 27, 2017, 12:04:40 AM »
Opps got them reversed    :'(  Lucky someone else picked up on it and let me know.   THANKS

Post corrected
Jeff Speegle

Anything worth doing is worth doing concours ;)

Offline ChrisV289

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Re: Voltage Regulator Stamping
« Reply #3 on: May 27, 2017, 12:09:47 AM »
Thanks Jeff! Hopefully you find the info...
Chris
1965 Honey Gold Fastback (SJ 10/29/64)
1965 Caspian Blue Fastback (SJ 06/03/65)
2009 V6 Mustang Coupe

Offline J_Speegle

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Re: Voltage Regulator Stamping
« Reply #4 on: May 27, 2017, 12:21:45 AM »
Think it applies to later cars but will find it ;)
Jeff Speegle

Anything worth doing is worth doing concours ;)

Offline J_Speegle

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Re: Voltage Regulator Stamping
« Reply #5 on: May 27, 2017, 01:09:47 AM »
Since this is a general discussion of voltage regulators for 65-66 as a reminder from the TSB articles

Vehicles assembled after Oct. 26, 64 have a revised regulator that can be identified by either a

1- daub of yellow paint above the "A" in Autolite

2- the line under the word Autolite has been deleted.

The marked covers should be found starting Oct. 26 through mid 1965 when stock would have been purged of all stock.


So real close to your build period. Could go either way since we don't know when you car was built for sure

Hope this helps
« Last Edit: July 02, 2020, 06:16:11 PM by J_Speegle »
Jeff Speegle

Anything worth doing is worth doing concours ;)

Offline 66RavenGTCoupeAgain

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Re: Voltage Regulator Stamping
« Reply #6 on: February 23, 2018, 10:21:22 PM »
Believe you will find the that yellow silver   printing was for standard (AF engineering number)  and silver yellow for the heavy duty (TF engineering number)  for cars with that option, bigger battery, larger alternator amps ..

This is great info. How do I check if I need the silver (38 or 42 amp) or yellow (45 or 55 amp). Electrical is not my strong point!
66 Metuchen NJ  GT Coupe
Raven with Deluxe Black Int 289 A Code C4 PS Tinted Windows (Green) Dealer installed Rear Speaker
6T07A1612## Dec 65 Build
65 San Jose CA Convertible Rangoon Red with White Int and Power Top with plastic rear window 289 C Code C4 PS PB AC Fog Lights
5R08C1496## Oct 64 Build

Offline Bob Gaines

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Re: Voltage Regulator Stamping
« Reply #7 on: February 23, 2018, 10:44:52 PM »
This is great info. How do I check if I need the silver (38 or 42 amp) or yellow (45 or 55 amp). Electrical is not my strong point!
If you had A/C or the heavy duty battery option you got the yellow TF identified regulator. I am not sure about convertible or smog . All of the rest were base electrical systems and typically received the silver AF marked regulator. FYI the common replacement Ford kept in inventory was the yellow stamped TF heavy duty version because it would work regardless of alternator. It meant less inventory to stock. This is the reason why many of the yellow stamped regulators ended up on otherwise all original cars because they were replaced early in life with the de facto replacement.
Bob Gaines,Shelby enthusiast, Shelby collector , Shelby concours judge SAAC,MCA,Mid America Shelby

Offline 66RavenGTCoupeAgain

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Re: Voltage Regulator Stamping
« Reply #8 on: February 24, 2018, 05:17:59 PM »
Thanks so much Bob. Yellow it is!
66 Metuchen NJ  GT Coupe
Raven with Deluxe Black Int 289 A Code C4 PS Tinted Windows (Green) Dealer installed Rear Speaker
6T07A1612## Dec 65 Build
65 San Jose CA Convertible Rangoon Red with White Int and Power Top with plastic rear window 289 C Code C4 PS PB AC Fog Lights
5R08C1496## Oct 64 Build