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Old Dec 4, 2015 | 05:39 AM
  #1  
allyolds68's Avatar
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Open Face Alternator

Probably a reman. No Delco Remy on it, no numbers or date codes anywhere. Don't know if it works. $35



Old Dec 18, 2015 | 09:18 AM
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Ttt
Old Dec 18, 2015 | 10:11 AM
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For someone looking to at least get a more correct "look" on their '70 442, etc this would be a good deal.

>It's a 6 spoke front half design....same as the original Delco Remy open face alternators used in '69/70.

>It's a internally regulated alternator...again, that's what was used on a '69 or '70 442, W30, '69 442, W30, H/O, etc.

>Back half, while not having the raised cooling fins, otherwise looks like the original with the ridges around the side/perimeter of the back case half.

>Overall, the case appears to be clean....not corroded, pitted, etc...it will clean up and look VERY NICE once rebuilt/restored. Adjuster bolt hole threads look clean and not stripped, etc.

Put a more correct looking replated pulley and fan on it, have it rebuilt/refinished and it will look A LOT more real than an internally regulated "closed face" alternator on a '70 442, etc...and at a fraction of the cost of the real thing.

Last edited by 70Post; Dec 18, 2015 at 10:28 AM.
Old Dec 18, 2015 | 12:38 PM
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Old Dec 18, 2015 | 03:08 PM
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Sold,


Thanks Joe
Old Dec 20, 2015 | 05:56 AM
  #6  
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Originally Posted by 70Post
For someone looking to at least get a more correct "look" on their '70 442, etc this would be a good deal.

>It's a 6 spoke front half design....same as the original Delco Remy open face alternators used in '69/70.

>It's a internally regulated alternator...again, that's what was used on a '69 or '70 442, W30, '69 442, W30, H/O, etc.

>Back half, while not having the raised cooling fins, otherwise looks like the original with the ridges around the side/perimeter of the back case half.

>Overall, the case appears to be clean....not corroded, pitted, etc...it will clean up and look VERY NICE once rebuilt/restored. Adjuster bolt hole threads look clean and not stripped, etc.

Put a more correct looking replated pulley and fan on it, have it rebuilt/refinished and it will look A LOT more real than an internally regulated "closed face" alternator on a '70 442, etc...and at a fraction of the cost of the real thing.
Looks like a ford pulley and a ford insulator on the bat post. I think the back case could be correct for late model open faced alts. Show what it looks like when you are done Joe.
Old Dec 20, 2015 | 07:35 AM
  #7  
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Originally Posted by stellar
Looks like a ford pulley and a ford insulator on the bat post. I think the back case could be correct for late model open faced alts. Show what it looks like when you are done Joe.
I'm pretty sure this is actually a Pontiac/Cadillac alternator, which used the six spoke front but the non-"diamondback" rear. My 70 W-30 won't be a "paint dab and chalk mark" resto anyway, as I don't have paperwork on the car and I plan to drive it. I'd lose points for the headers and 2.5" exhaust anyway.

I'm hoping I can swap the guts from a 78 amp 12SI into this one.
Old Dec 20, 2015 | 10:50 AM
  #8  
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Many years ago (20+) an alternator caught my eye while walking around a wrecking yard down in La Grange, TX. "Open face" feature sort of glared at you and said "BUY ME". Did so and got it home and realized it was a 5 spoke design and more of what I now call a "semi open face" design.

There was a SLIGHT lip, maybe 3/16" wide, cast into the front half along the outside edge of each opening. They probably added that to give a little more strength/support around the outer ends of the spokes. Ended up taking a file, etc and removing the slight lip to give it the more complete "open face" look (see pic - red lines show general location of the extra lip I mention).

It's a Delco Remy alternator.....1102566 37A with a 5J16 date code (1975 is my bet).

I've found 5 spoke open face alternators on some early '70's Buick Electras.....they use the regular style back halves as well.
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Old Dec 21, 2015 | 03:01 PM
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Originally Posted by joe_padavano
I'm pretty sure this is actually a Pontiac/Cadillac alternator, which used the six spoke front but the non-"diamondback" rear. My 70 W-30 won't be a "paint dab and chalk mark" resto anyway, as I don't have paperwork on the car and I plan to drive it. I'd lose points for the headers and 2.5" exhaust anyway.

I'm hoping I can swap the guts from a 78 amp 12SI into this one.
Guts will swap, but the 12 SI rectifier is a bit different. It has an air scoop for better cooling of the rectifier and it has 2 ground screws where the 10SI has only 1. Be sure to swap the rotor also.
Old Dec 23, 2015 | 01:24 AM
  #10  
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FYI, on early 70's open face alternators there are different designs. The Olds used a alternating thick and thin 6 spoke design, whereas Pontiac's spokes were all thick. The only vehicles to use the diamond back design, were Oldsmobile, Pontiac, and Corvette from 1969-70.
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