ConcoursMustang Forums
Restoring - General discussions that span across many different groups of years and models => Parts => Topic started by: 67gta289 on May 30, 2017, 10:14:18 PM
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I have a very nice original C5TF-10316-A voltage regulator and am wondering if there is a rubber stamp out there already made that I can loan. If not I'll pursue getting one made that can be shared.
Attached is a little something I put together that compares an original regulator with a reproduction, noting some differences. Also noted are what appear to be factory markings to denote passing of a functional test. I hope it provides value to someone.
Also as always if it spawns some discussion, whether due to an error on my part, or something I missed, etc. that would be good since I love to learn. If there is no discussion I'll be a bit surprised ;)
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John,
A scan or a straight down picture would be nice. Here's my progress on a regulator for a 1964 I-6 generator car. It takes time.
Jim
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John,
A scan or a straight down picture would be nice. Here's my progress on a regulator for a 1964 I-6 generator car. It takes time.
Jim
Jim I am surprised to see a generator regulator blue color given they were pre 65. Is that because it is a service part made post 67? I figured it would be black in the same way the alternator regulators transitioned from black to blue in 67. I have not studied generator regulators.
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John the inspection marks are interesting, I will have to check some of mine.
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Curious why your reproduction example looks to have WHITE ink stamping. (just an observation)
A quick search of reproductions from a few popular sites include these images. It looks like several use the AMK image in their online catalogs. I've only included one image of those examples.
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Curious why your reproduction example looks to have WHITE ink stamping. (just an observation)
A quick search of reproductions from a few popular sites include these images. It looks like several use the AMK image in their online catalogs. I've only included one image of those examples.
Most likely you are seeing silver and not white. C5AF is silver and C5TF is yellow. C5AF is for use with 38/42 amp alternator and C5TF is for 55 amp alt.
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Jim I am surprised to see a generator regulator blue color given they were pre 65. Is that because it is a service part made post 67? I figured it would be black in the same way the alternator regulators transitioned from black to blue in 67. I have not studied generator regulators.
+1 and also I would expect a FoMoCo script instead of Autolite. Also thought that generator Mustangs used a 30A regulator, but have not checked if 25A is correct for an I6.
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Jim I am surprised to see a generator regulator blue color given they were pre 65. Is that because it is a service part made post 67? I figured it would be black in the same way the alternator regulators transitioned from black to blue in 67. I have not studied generator regulators.
It's a service part.
+1 and also I would expect a FoMoCo script instead of Autolite. Also thought that generator Mustangs used a 30A regulator, but have not checked if 25A is correct for an I6.
I think you're right about the FOMOCO. The 64 Mustang Electric Assembly Manual lists C2DF-10505-A regulator for 6 cylinder engine generator applications, and a C2AF-10505-A regulator for V8 engine generators.
As I stated - it's "progress", and it has come to a halt. My initial thoughts were could I take a scan of the marking and make a stamp from it using my archaic 20 year old Photoshop software.
Jim
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John the inspection marks are interesting, I will have to check some of mine.
Not unusual (depending on year/time period) to find a date, one or more slashes, daubs and other markings other than the identification one
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A quick search of reproductions from a few popular sites include these images. It looks like several use the AMK image in their online catalogs. I've only included one image of those examples.
Pictures of my repro AMK purchased about a year ago. Notice the crappy alignment of the contact points >:(
Also, if compared to the images of the OE example in John's PDF, you will notice several other differences such as the head of the screws (smaller), relays, underside components and so on.
The cover looks good.
The base looks good at a glance.
I have to wonder how well it will last. Originals didnt last very well, perhaps why Ford switched over later service part replacements to the electronic/solid-state versions.
It is easy to understand the OP's desire to use an OE FoMoCo version as opposed to any of the repros available because we already know the repros are failing faster than you can change them. Like the starter solenoids...it would be nice to have somebody build a reliable, correct-appearing reproduction. I intend to occasionally drive my restored 67 more than on and off of a trailer, requiring a battery charger on stand-by to have it pass muster at a show.
If anyone in the Parts Business might be reading this...perhaps consider building an example that looks as good as this amk product does that perhaps has the solid-state internals of the later service Replacements that Ford was selling.
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.... Originals didnt last very well, perhaps why Ford switched over later service part replacements to the electronic/solid-state versions.
.......
Don't know about that I've had at least 200 over the years and can't recall having to touch or replace one except for consmitic reasons.
In any case thanks for the report
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John, did you have an accurate measurement for the diameter of the screw head? The image you provided looks to be off-centered a bit. (in your PDF image) I am trying to locate a couple of the correct dimension screws, trying first at a local hardware store. I see they are 1/2" long clearly. Looks slightly larger than 1/4" diameter in your image.
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We handle the AMK reproductions, and just about all versions/stampings now have electronic/solid state internals.
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John, did you have an accurate measurement for the diameter of the screw head? The image you provided looks to be off-centered a bit. (in your PDF image) I am trying to locate a couple of the correct dimension screws, trying first at a local hardware store. I see they are 1/2" long clearly. Looks slightly larger than 1/4" diameter in your image.
The original screw has a head diameter of 0.303" whereas repro is 0.253". Yes I checked the micrometer zero😉
Length of original and repro the same at 0.600".
Original had sheet metal type threads repro is machine thread #8-32
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Found two more regulators with inspection marks. However, for the first time I noticed that there are date stamps. These were both pulled out of 65/66 Galaxies. Obviously the blue Motorcraft is a replacement.
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Found two more regulators with inspection marks. However, for the first time I noticed that there are date stamps. These were both pulled out of 65/66 Galaxies. Obviously the blue Motorcraft is a replacement.
The inspection marks varied in placement and color from what I have seen. The date codes are fairly typical also. The date code on the Motorcraft replacement is most likely 1973,83 etc.
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The assembly date of the voltage regulators changed in the very early 70's if I recall correctly. Have seen three different colors used to apply these. Most of the time a blue or purple but have ones that were done in black though not as common. On early versions the date is located in a spot where it is not visible when the regulator is installled in the car
Often there was a colored mark often a number or letter to signified some unknown process of check. Sometimes two different colored marks are found on the base.
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I opened the original Ford container for a NOS voltage regulator early this year. I assume the container was sealed 55 years ago. It was in a FOMOCO labeled container, not Autolite, not Ford, with service part number C3DZ-10505-A. That part number is for a 6 cylinder VR (170 and 200 CID engines) with a generator. The date code is 3B26 (1963, February 26). That is based on the FOMOCO label. The marking is purple ink, about 24 point type (0.330 inch tall). The part number stamping on the VR is C2DF-10505-A. Its color is a flat, dull yellow. Its overall measurements are 1 9/16 X 2 13/16 inch. The word "REGULATOR" appears to be 12 point type.
Pic 1 - The VR and original container.
Pic 2 - Overall picture.
Pic 3 - Stamp.
Pic 4 - Date code location.
Pic 5 - Date code detail.
I posted this as a possible guide to period markings of early voltage regulators.
Jim