Other Applications for the 1100544 Alternator
This might be one for Joe to answer, regarding the 1100544 alternator. I believe the application was for 70-73 Vettes with A/C. The one I have is a 1L2 which I believe is 71 Nov 2. Are there other Vette or GM applications for this 1100544? I would like to locate an earlier date to possibly trade for but it appears these have become very difficult to locate. Is it correct to say 71's and early 72's had relative fewer A/C cars and thus fewer 1100544's produced?
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Re: Other Applications for the 1100544 Alternator
That would work for my Feb 71 with a/c! send me an email if you wand to get rid of it. thadlejeune@yahoo.com -
Re: Other Applications for the 1100544 Alternator
Thad..... would love to sell it to you, but I don't think it will work for your application. If the build date for your car is Feb 71, and if I'm correct that the 1L2 date on the alternator is the "build date" for the alternator, ie 71 Nov 2, that would result in the alternator was built 9mos AFTER your car was built. Hopefully others will chime in if I am correct. If so you would be looking for 0 H-M (70 Aug-Dec) and or 1 A-B (71 Jan-Feb) depending on how late in February your build date is.Comment
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Re: Other Applications for the 1100544 Alternator
You are correct! For a second I thought it was Nov 70
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Re: Other Applications for the 1100544 Alternator
Norm-----
There were only TWO original applications for the GM #1100544 alternator. 1971 Corvette with 61 amp alternator was, of course, one of these. The other was 1971 International Harvester Corporation Truck with 61 amp alternator.
GM #1100544 was once available in SERVICE through the Delco parts system. It was never available through the GM parts system.In Appreciation of John HinckleyComment
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Re: Other Applications for the 1100544 Alternator
Joe.... thanks for the quick response!! Can you expand your answer as to which years did they use the 1100544 for Corvette. I know they did for 71-73 as I've seen those dates on other 1100544's but not clear as to when they started and ended using them?? Thanks in advance Joe for your assistance!!!Comment
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Re: Other Applications for the 1100544 Alternator
Norm,
I've been looking for a 544 for my June-built 1971 for years. I lucked upon a January built one several years ago and purchased it, but still am holding out for an April or May date.
In my searching it seems like 1971 MY dated 544s are very, very uncommon. I have seen many more starting with July of 1971 which would be correct for an early 1972 MY build. As with many components I'm sure these were batch-built, so there may be limited possibilities with regard to dates.
Keep looking. I've only been at it over 15 years.
PatrickVice-Chairman (West), Michigan Chapter NCRS
71 "deer modified" coupe
72 5-Star Bowtie / Duntov coupe. https://www.flickr.com/photos/124695...57649252735124
2008 coupe
Available stickers: Engine suffix code, exhaust tips & mufflers, shocks, AIR diverter valve broadcast code.Comment
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Re: Other Applications for the 1100544 Alternator
I have been following the 544 for quite a while. Having a 72 with A/C, I turned in my original for a core back in the 80's. Having made that wonderful move I have kept my eyes open to see what is out there.
Over the years I have noticed that the 544 with a 72 date on it is reasonably easy to come by. I even ended up buying one, for a very reasonable price, with a date a few months after my car was built, just to have one. Since then I ended up with a December 71, and March 72, again for a very reasonable price.
It seems that anything earlier than 72 is almost impossible to come by. This too made me wonder if there was another application for that alternator. I see a lot of June of 72 and later dates out there, for some reason.
Now knowing there is not another application for the 544 means that this is just the luck of the draw, like many other parts. Maybe in time the 70 and 71's will start showing up and the 72 and later will be the ones difficult to find.
It is not uncommon to find a June of 72 and later offered for $50.00. Any date before that seem to hit the $200.00 mark. Best of luck in your search. Now that you got this out there, we will keep our eyes open for you.Comment
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Re: Other Applications for the 1100544 Alternator
Monte-------
What is the drive end case configuration of the '544's you have? Do they have 5 thin ribs that extend all the way to the perimeter of the case half?
Like this: DSCN1171.jpg Or Like this: DSCN0621.JPGIn Appreciation of John HinckleyComment
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Vice-Chairman (West), Michigan Chapter NCRS
71 "deer modified" coupe
72 5-Star Bowtie / Duntov coupe. https://www.flickr.com/photos/124695...57649252735124
2008 coupe
Available stickers: Engine suffix code, exhaust tips & mufflers, shocks, AIR diverter valve broadcast code.Comment
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Re: Other Applications for the 1100544 Alternator
Patrick------
Yes, it probably is. Here's the deal: the photo on the left is the drive end of an NOS GM #1100543 alternator I have [not for sale]. This alternator is dated "0 G 2" (July 2, 1970). I believe that similarly dated examples of the 1100544 would have used the same drive end case. Just when the case half was changed to the design shown in the photo on the right, I do not know. However, I believe it occurred sometime in 1971. Unfortunately, it can't be discerned from the part number of the drive end case half because the part number never changed. This would imply that the change was accomplished via a revision to the drawing for the part. So, I think that most, if not all, examples of the 1100543 and 1100544 used for the 1971 model year probably used the "open" case half (left side photo).
Unfortunately, the 5 spoke, "open" design case halves were quite fragile and fractured rather easily, especially when they were rebuilt. I would not be surprised if most commercial rebuilders just junked these case halves when they ran across them. That may be why the 1971-dated 1100544's are hard to find.
By the way, the original SI series alternators used for the 1969-70 model years used a 6 spoke, "open" design drive end case. These cases used even thinner (and thus more fragile) spokes. They were replaced by the 5 spoke, "open" design with somewhat thicker spokes for the 1971 model year. Very late 1970 might have used the 5 spoke design, too.
While the 1969-70 and 1971 drive end case halves were quite fragile, they did have one advantage: they allowed more cooling air into the alternator. It's my belief that this is why they were designed that way in the first place. When those designs didn't work out for fragility or other reasons, Delco-Remy reverted to a "closed" design very similar to the design that had been used for 1962-68 DN series alternators.In Appreciation of John HinckleyComment
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Re: Other Applications for the 1100544 Alternator
Joe,
If your explanation is indeed the case, it makes a lot of sense. All the 544 cases I have are between December 71, and July 72. They all have what is in the second picture.
I have pictures of a large number of 544 cases. All late 71 and later. They all have the thicker web case. I will take a look and see if I have any pictures of earlier cases to see when and if the case change seems to follow your explanation of not. I will PM you with what I find.
Joe, like always, "Thanks" for taking the time and the great information.
MonteComment
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Re: Other Applications for the 1100544 Alternator
Joe,
Going through all my cases I found a May of 71 case. It has the second design. My guess would be there is a transition period where you might find both cases in production/assembly line. When do you think the change over started or ended? I know these kind of things are very difficult to figure out without asking for some kind of input from the members, but I was wondering if you had any idea when the change started.
MonteComment
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