Proper voltage regulator/

[767Jockey]

Anyone know where to get one? What's the part number, what does it look like? Is the cover black or blue? Does it have a big "Autolite" stamp on it? Where exactly is it mounted on the footbox? Any and all info is appreciated. Thanks.

[RICK LAKE]

767 Jockey You need the voltage regulator to match the output on the ALT. There are heavyduty and regulator ones. Look for a 60 amp atl and go with that regulator. Try F-250 trucks for Ford squire wagons. You might want to look at a 1 wire Alt setup. It svaes alot of problems. I do have my regulator mounted on the flat side of the L/s fender. This is where ERA mount thiers. ERA mount there Alt on the r/s of the motor, mine is on the L/s because of the P/S setup I run. If you are running alot of electricial things, a 60 amp is boarder line for keeping the battery charged at Idle for a long time. Add up the total amps used with everything on, Fans, blower motor, lights, MSD ignition( this is a big drainer)Fuel pump if electric. You may want to look at the MAD setup. Try looking at old threads on charging systems. A couple of the guys are running 100 or 140 Alts. I have an old Autocraft 100amp Alt and the thing weights about 12 pounds and is huge. Rick L. Would they let you borrow a generator off your plane Doug?

[767Jockey]

Originally Posted by RICK LAKE

767 Jockey You need the voltage regulator to match the output on the ALT. There are heavyduty and regulator ones. Look for a 60 amp atl and go with that regulator. Try F-250 trucks for Ford squire wagons. You might want to look at a 1 wire Alt setup. It svaes alot of problems. I do have my regulator mounted on the flat side of the L/s fender. This is where ERA mount thiers. ERA mount there Alt on the r/s of the motor, mine is on the L/s because of the P/S setup I run. If you are running alot of electricial things, a 60 amp is boarder line for keeping the battery charged at Idle for a long time. Add up the total amps used with everything on, Fans, blower motor, lights, MSD ignition( this is a big drainer)Fuel pump if electric. You may want to look at the MAD setup. Try looking at old threads on charging systems. A couple of the guys are running 100 or 140 Alts. I have an old Autocraft 100amp Alt and the thing weights about 12 pounds and is huge. Rick L. Would they let you borrow a generator off your plane Doug?

Maybe I should go with an alternator off one of the big Rolls Royce RB-211's on my plane!
All joking aside, I just found a local place run by absolutely super folks. It's one of the last electrical rebuild houses around here, and he's a hot rodder at heart. This guy gets the whole Cobra thing. He's taking my original style Autolite 3 wire 60 Amp alternator and is rebuilding it and upgrading the internals for 100 amps. He's checking into original colors for the case, pulleys, vane on the front, etc. When he's done it will look exactly like an original, but it'll put out 100 amps. The cost? A measly $119.00! This guy took an hour working with me, and it seemed he enjoyed every minute of it, just a great guy.

I brought my old parts house generic regulator with me. He said it's better than an original because it's an electronic rather than mechanical regulator like the original (whatever that means). I may have the terminology wrong there, but that's the basic idea. He said for me to look for an original looking regulator, and to bring it to him. He'll swap the cover off the original one and put it on my better working new one, which is fully compatible with the higher output of the alternator. Now, all I have to do is find an original looking one with the "Autolite" name on the front. Anyone?

Sal, are you out there?

[Power Surge]

You know, there's lots of detailed pics of my car (and others) on the csxinfo site .

http://www.csxinfo.net/web/modules/x...s.php?album=87

[767Jockey]

Originally Posted by Power Surge

You know, there's lots of detailed pics of my car (and others) on the csxinfo site .

http://www.csxinfo.net/web/modules/x...s.php?album=87

I know! Where'd you find the regulator?

[Jim Maxwell]

Good question regarding the correct voltage regulator. I have seen the following on 289 Cobras:
C4TF, C4UF, C3XF
On 427 and 428's: C5AF, C5TF(original to COB 6026 in written document), C6TF (original to 3288)

Jim

[767Jockey]

Great info - thanks, Jim!

[rokndad]

At shows, I've been seeing a lot of Autolite C5AF's on cars with 55 amp alternators that have silver stamping on black covers. I have yet to see a C5TF, which is the matching regulator for a 55 amp Autolite alternator, but it has yellow writing on a black cover. I'm assuming it's the matching 4-wire external regulator, and I have a 55 amp output alternator. What's correct?

[Jim Maxwell]

Well, I must issue a retraction. I blame it on failing eyesight and the fact I lost one of my bifocal contacts. The regulator is not original to CSX 3288, being a C8TF, not available in 1966, I think.
rokndad, I agree with you that the C5TF makes more sense and I think is correct for 55 amp alts. The Shelby American parts book dated 12-23-66 lists the regulator as C5AZ, so I wonder if that is where the C5AF idea came from? I don't have photos of the details of any original unrestored 427s in my files. Can anyone else help out here?

Jim

[computerworks]

Here are some notes I have:

Parts listings show:

C5AF-10316-A 1965-67 Autolite Voltage Regulator Black/Silver
C5TF-10316-A 1965-67 Autolite Voltage Regulator Black/Silver - with A/C

"C5AF" units were originally intended for use with 38A & 42A alternators while "C5TF" units were for 45A & 55A alternators.

I have C5AF-10316-A Autolite as the correct p/n

I think the above are OEM and the C5AZ were replacement (OTC) parts

[rokndad]

Thanks Jim and Ron. So I guess that sort of solves my mystery. I now just have to find a C5TF-10316-A (or C5AZ) regulator rated for 55 amps that has the silver and black cover. So far, I've run into block walls and have seen only the ones with the yellow lettering. Anyone know out there where one of these silver and black beasts might be found?

[rokndad]

Found it! Mustang Depot, $29.95. 1965-67 C5TF-10316-A with A/C. This site is great.