Ac delco alt help

anyone know the ac delco part no.for the alt. on a 90 348? Sent it out for a rebuild and they think they lost it. Can't find one with the correct ears

Thanks for any help
Bob

You may look here. I think they have them. Call them if it is not on the site.

http://www.allferrariparts.com/

Thanks ian d,
they just have the newer style. I emailed ac delco they said they don't and never did make a alternator for a 348 f-car, 1990 doesn't seem that long ago. Any other ideas out there?
Thanks Bob

I thought it was a japanese alt. (nippo? nippso? nippmo?)

Early 348s had delco alts. and later they used Nippon Densos. Some earlier 348s were upgraded. I think the delco is 105A and the Nippon is 140A.

Okay I did a little searching. The part number for the Delco alternator is #10479969. Another owner ordered one from NAPA auto parts for $84. Oh yeah and it had a life time replacement warranty.

Some more info. It seems that the AC Delco is the same alternator found in a '92-'94 Camero Z28.

And some more info. The NAPA part number is 13-4553. This owner payed $144 for it.

Thanks to all, you guys are great and smarter than ac delco gang.

Thanks again Bob

I reanimate this thread as it basically helped me a great deal and I have to ad some pieces of information.

When my Delco first failed, I took off the pulley, as it is the only Ferrari specific part on it and took the alternator to a GM dealer. Told him I didn’t now its origin, cause it was from some kit car, never mentioned the "F" word!

We found by number a identical unit, GM No. 1101267 with 105Amps. Its plug and play for the Mondial T and should be identical to 348 which also have the Delco (don’t mix with NipponDenso!)

Now, after only 1200 miles, it failed again. The car lit the charge lamp any time I exceeded 1500 rpm and the car broke down 10 minutes later.

I recharged the battery, car runs fine again, but the alternator does not charge although the lamp goes out when the engine is running!

Checked all wires that are fine, so I removed the alternator. Even on the garage floor with the car jacked up on one side it is only a 15 minute job. First switch off the battery, then metric 10, 13, and 17mm tools are needed, plus a 8mm hex key.

When I disassembled it I found some of the diodes shot and the regulator melted at the B+ terminals nut. On the back oft the diode pack where only traces of thermal compound and the base plate was really thin and had no cooling fins as they are found on different pictures of this part.
The regulator has no thermal contact to the alternators case and the cooling surface only sees the air trough 4 tiny holes.

In fact this unit was build to fail on the first hot day with high rpm, and that’s exactly what it did!

This remanufactured unit was bought at a regular GM dealer and had only the Delco numbers on it.

On the internal parts the regulator is “made in Costa Rica” and has 35-127-7 0107-7 on it, the rectifier says CARGO 131880 M090 RD-02T A14938. That’s all. No manufacturer name.

I have now found out same facts about the alternator that sure help.

It is from a 1992 Dodge Monaco V6 3.0L gas engine.

There are different order numbers for it, here are some:

GM 1101267
Delco 334-2388
NAPA BSAAL656X


These are 100% compatible with all connections except the pulley which is a 30 second job to change with a impact wrench.

The internals are from the CS 130 family. Dependent on purpose they can have various ratings, this one is 105 Amps.

There are repair kits for it with brushes, bearings, rectifier and regulator starting at $ 25. To fit them a soldering iron is needed plus the usual tools.

Rectifier
http://www.elreg.com 311-618HD

Regulator
Elreg 101-670HD

Or look here, but link may be out of date later, kit should consist of the CS130 HD parts:

http://cgi.ebay.com/ebaymotors/ws/eB...PcY_BIN_Stores


I think it is better to repair this unit with high power rectifier and diodes from the CS 130 range than to go for the next exchange unit. A good repair shop should understand this and be able to fit the right parts without problems. If you are not known as a Ferrari owner there, it will sure be far less than $200 to do this upgrade repair.
I ordered a set and will try to improve it for the use on a Ferrari. Basicaly it is not a problem of the car drawing to much current, as it is rated 1470 watts, what is really enough, but caused by heat plus high rpm. As it does not fail instantly, it can be suspected the electronic components inside are dimensioned just at the edge. So the upgrade to the available stronger rectifier and regulator should be successful and make more sense than putting even more Amps in the same size package.

I hope this may help other victims, as this problem sooner or later seems to hit anyone with a 348 or Mondial T.