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Author Topic: ac delco voltage regulator part number for 68 L34?  (Read 8524 times)
ferenc
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« on: February 05, 2006, 09:33:21 AM »

hi, anyone have a part number for this thing?  111951?
tx,
ferenc
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Ed Bertrand
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« Reply #1 on: February 05, 2006, 12:23:58 PM »

Ferenc,

The original part number for most GM cars from 62 up (using the externally regulated alternator) was 1119515. There were a few exceptions like Transistorized Ignition or 62 amp alternators, but for the most part, that's what you want.

Ed
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ferenc
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« Reply #2 on: February 05, 2006, 12:46:31 PM »

great! thanks.  i was a bit concerned as the '515 # was more square than the one in the photo of the service manual.
ferenc
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ferenc
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« Reply #3 on: April 14, 2006, 12:02:24 PM »

hi, is that crossed to a D632 or D635?  Another source points to number 1119507.
ferenc
« Last Edit: April 14, 2006, 12:13:11 PM by ferenc » Logged
Ed Bertrand
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« Reply #4 on: April 14, 2006, 12:42:28 PM »

1119515 is the GM P/N for the AC Delco P/N of D635.

1119507 is the GM P/N for the AC Delco P/N of D632, and was used on early 60's Buicks, Pontiac, Olds and International trucks.

HERE'S an NOS 1119515 (D635) on ebay and HERE'S an NOS 1119507 (D632) on ebay.

They probably interchange just fine, but I can't be sure of that.

Ed
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rich69rs
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« Reply #5 on: April 14, 2006, 12:58:47 PM »

It may just be old age, but in both pictures, the top (black) covers appear to be bolted to the base.  From what I've seen, original ones had the top riveted to the base..
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Richard Thomas
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Ed Bertrand
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« Reply #6 on: April 14, 2006, 02:24:24 PM »

Rich,

Scouring wrecking yards over the last 35 to 40 some odd years, I've seen both "riveted" and "screwed on" AC Delco covers. I'm not sure why since (I believe), AC Delco was the sole supplier. I could see variances if there were more than one supplier, but I don't understand why the two versions from one source. Of course, one or the other (riveted or screwed on) could have been an "over the counter" replacement, so I'm not sure which one is correct. Riveted? Screwed on? John Hinckley, I'm sure this has been chewed up many times on the Corvette forums. What's the consensus?

Ed
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JohnZ
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« Reply #7 on: April 16, 2006, 10:00:56 AM »

Ed, almost all midyear Corvettes used the 1119515, and I've never seen a production 515 with anything but a screw-attached cover; have never seen one with rivets.
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Ed Bertrand
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« Reply #8 on: April 16, 2006, 11:15:46 AM »

Thanks John. THen I'll assume that the riveted ones are "over the counter" replacements. Which would make sense since I've not seen very many of those...

Ed
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ferenc
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« Reply #9 on: April 16, 2006, 07:28:55 PM »

1119515 is the GM P/N for the AC Delco P/N of D635.

1119507 is the GM P/N for the AC Delco P/N of D632, and was used on early 60's Buicks, Pontiac, Olds and International trucks.
...
i may be getting too picky here, but is there a generic date code chart for delco?
thanks,
ferenc
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Ed Bertrand
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« Reply #10 on: April 16, 2006, 08:39:11 PM »

Ferenc,

If you mean a date code for Voltage Regulators, yes there is. It will be in a format like "8E" which would be "Year & Month". In this example, "8E" would be May, 1968. However, it could also mean May of 1978, May of 1988 or May of 1998. Voltage regulators were still available from the dealer long after these cars were built and AC Delco continued to be the supplier. I don't think they're available "new" any longer though.

Ed
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ferenc
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« Reply #11 on: April 16, 2006, 09:41:57 PM »

great, thanks.  that make good sense, A-L for the months.  i had a high pressure power steering hose burst while my wife had the car out many years ago, and when the replaced the burnt wiring components, they stuck in a philco, alas.  i should have done the work myself ...
ferenc
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68rsssrag
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« Reply #12 on: April 22, 2006, 10:42:06 PM »

where is the datecode stamped and how in these units?

Arno
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Ed Bertrand
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« Reply #13 on: April 23, 2006, 12:09:37 AM »

Arno,

here are two pictures showing the location of the stampings. The first is a full shot showing the whole regulator, and the second a blow up of the stampings. (Don't worry, you're not seeing things. They are 2 different regulators with the first being a May, 1969 unit, and the second being a June, 1968 unit.)

As for "how" they were stamped, I'm assuming they had some kind of gang stamp like used on the engines/transmissions, etc... Much smaller but basically the same concept.

Ed




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68rsssrag
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« Reply #14 on: April 25, 2006, 11:27:38 PM »

Ed

Thanks for the info.

Arno
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