Ryan, Just a quick note that your clock position on an alternator can be
changed in about 3 minutes. Better if you don't have to, but sometimes
beggers can't be choosers.
Patrick
At 01:09 PM 10/31/98 PST, Ryan Smith wrote:
>Ok guys here's the deal on Delco replacement alternators. Barry
>wondered yesterday if there was a direct bolt on replacement in part
>stores computers. Well I can't swear to all part stores but NAPA does
>not list a GM style alternator for triumphs. (I looked up several years
>of spits and TR-6's) However I did happen upon a footnote for a voltage
>regulator for a car with a Delco alternator. I'm assuming that
>somewhere along the line Triumph used a few delco alternators (low amp
>37A or so) along with the Lucas units.
>
>Now on to the 7127 model that dan suggested. I interchanged this and it
>came up to 2 "families" of GM alternators. The 2 families basically had
>the same housing but one was rated at 42A and the other 63A. This leads
>me to believe that #7127 is housing style not a specific alternator.
>Within the 42A and 63A families my dad stocked 6 different alternators
>that all interchanged to the 7127. The different alternators were very
>similar but the connections were rotated, what in the industry is
>referred to as clock position.
>
>Ok so what do you guys ask for if you want to buy one of these things.
>Like Barry said, if you're in a store with real books and ppl who know
>how to use them just asking for a GM 63A alternator should get you the
>right one (with various clock positions). I searched the books through
>the Chevy line and that alternator was used for nearly 30 years in
>almost every Chevy car. There is the possibility of getting a double
>pulley version but the books should point this out. The NAPA number is
>13-4011 (with A & B variants for clock position) for a 63A alternator.
>The 42A family is 13-4010 (A & B).
>
>Whew (getting long winded here)...
>Hope this helps. And if anyone would like that number interchanged to
>practically any part store or brand just let me know.
>
>Ryan Smith
>72 Emerald Green Spit
>VT 27 WVU 13
>
>
>>On all three of the alternators I have, there is a decal or a sticker
>on the
>>side with some form of 7127 on it- something like M7127S-5, or
>14-7127-P, or
>>some such (these are all fictitious numbers), not stamped on the case.
>The
>>three came from two different stores, and three different re-builders.
>Also,
>>when I bought the last one, the clerk I first dealt with didn't know
>what to
>>get for me, so he asked one of the more experienced clerks, who
>answered "oh,
>>yeah, that'd be a 7127."
>>
>>From that, I assumed 7127 may be a universal number of sorts.
>Never-the-less,
>>I will be interested to see what you learn from your Dad. This is one
>of the
>>most common questions I get about the conversion. If you can get some
>good
>>part numbers, it would be a great help.
>>
>>On two of the units, the amperage is stamped on the side, but whether
>that
>>means anything or not, I don't know.
>>
>>Sorry your not feeling well, hope you get better soon.
>>
>>Dan
>>
>
>
>
Patrick Bowen
'79 Spitfire
Jacksonville FL
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