A "correct looking" alternator for 1969?

[John D.]

Re: A "correct looking" alternator for 1969?

I once went to one of the large chain type auto parts store and they let me nose around comparing the rebuilt water pumps. I actually found a correctly dated 326 casting although it had the larger bypass fitting.

They might also let you compare the rebuilt alternators until you find one thats looks close enough....just an idea

[Jeffrey S.]

Re: A "correct looking" alternator for 1969?

Jay:
The '69/'70 rear cases do show up at swap meets like Bloomington and Carlylse and generally are not outrageously priced (of course, it depends on what your definition of "expensive" is).
Jeff

[Jay G.]

Re: A "correct looking" alternator for 1969?

I don't know if 'reproduced' is the correct term, but service replacement front case castings WERE available at one time... This version of the case was prone to having legs/spokes crack.

You'd know if a 'replacement' front case was genuine or aftermarket by looking for a Delco Remy logo emboss...

Jack,

I looked at the part I have and don't see any indication of Delco Remy on the part. Where is the most likely place for such an embossing?

I have attached a picture of the part I have in case another set of eyes is better than mine.



Regards,

Jay

[Joe L.]

Re: A "correct looking" alternator for 1969?

Jack,

I looked at the part I have and don't see any indication of Delco Remy on the part. Where is the most likely place for such an embossing?

I have attached a picture of the part I have in case another set of eyes is better than mine.



Regards,

Jay

Jay-----


Usually, if the Delco-Remy logo is present it will be on the mounting "ear" of the case with the tapped hole. I do not see it on this case half. It's quite small, though. Not all the case halves have the logo, but all the earlier ones usually do.

This piece looks good, though.

[Jay G.]

Re: A "correct looking" alternator for 1969?

Joe,

Thanks for the speedy reply. Your invaluable insight and comments are always appreciated.

Regards,

Jay

[Joe L.]

Re: A "correct looking" alternator for 1969?

I don't know if 'reproduced' is the correct term, but service replacement front case castings WERE available at one time... This version of the case was prone to having legs/spokes crack.

You'd know if a 'replacement' front case was genuine or aftermarket by looking for a Delco Remy logo emboss...

Jack-----


Yes, they were available. In fact, I've been looking for one for about 25 years now and I've come up dry. I've actually found and purchased several of the correct part number but I've been disappointed every time. Why? Here's the deal, as best I can tell:

The original part number of the 1969 drive end case half for the SI series alternator (i.e. the "6 leg" style) was GM #800135.

The original part number of the 1970-E71 drive end case half for the SI series alternators (i.e. the "5 leg, OPEN style) was GM #800135.

The original part number for the L71-79 drive end case half for the SI-series alternators (i.e. the "5 leg" CLOSED style) was, you guess it, GM #800135.

If there ever was another part number for the early cases, then it was a "super secret", internal, PRODUCTION-only part number. From what I can tell, there wasn't. Instead, the specifications for the GM #800135 case half were, apparently, heavily revised on several occasions.

I expect that the GM #800135 that one could purchase in SERVICE during about the 1969 model year would have been the "6 leg" style. I also expect that the GM #800135 that one could have purchased during about the 1970-E71 period would have been the "5 leg", OPEN style. And, the GM #800135 that one could purchase after about L1971 would have been the "5 leg" CLOSED style. However, every one that I've ever purchased was the "5 leg" CLOSED style. I can tell you that I have some in some pretty old (but unfortunately undated) Delco boxes but, apparently, I don't have any older than about late 1971.

By the way, the only reason I've been looking for one of these case halves for so long is to confirm that the "6 leg" style and "5 leg" OPEN style case halves were, indeed, GM #800135. Since the old "nemesis" of "no part number embossed on the piece" applies here, the only way I have to confirm that the original style case halves were of the same part number is to find one in a box with that part number on it. Try as I may, I have been unable to obtain the ultimate "holy grail" I seek; the original blueprint for the GM #800135. I would DEARLY love to have that. It would "tell-all-tales".

So, isn't this sort of situation involving what amounts to a massive change in a part without a part number change very unusual? Yes, it ABSOLUTELY IS. But, that's what I'm pretty sure happened here.

[Anthony C.]

Re: A "correct looking" alternator for 1969?

Tom
What alternator are you looking for i have 3-882's and 2- 825's what date are you looking for?
Tony