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Old Apr 16, 2012 | 10:51 AM
  #1  
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Default Alternator Rebuild Kit

Could anyone point me in the right direction to find a rebuild kit for a Duralast 7127-9M Alternator

The pulley spins smoothly : so looking for a basic kit without the bearings etc.

first time at rebuilding an alternator so any hints and tips welcome.

Across the pond, so dropping into the nearest autozone is not an option.

thanks
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Old Apr 16, 2012 | 11:47 AM
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duralast remanufacturers alternators, this is a Delco unit. You dont have access to Delco components?

http://www.autozone.com/autozone/par...ntifier=333377
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Old Apr 16, 2012 | 01:32 PM
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It doesn't look like there is a GM dealership in Ireland that you could order parts through either - http://www.chevrolet.ie/

I realize there isn't an Autozone in Ireland, but that is who sells Duralast components. I couldn't find a rebuild kit on their website. What year is your car?
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Old Apr 16, 2012 | 02:17 PM
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there are a number of suppliers in Ireland on this list

http://www.acdelco.eu.com/Distributors.asp
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Old Apr 16, 2012 | 04:16 PM
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Do you know which diodes need to be replaced? You need to disassemble the alternator. You do NOT need to remove the pulley/nut, since you are not changing the bearings.

Remove the rear housing, disassemble components until you can get down to the detail diode parts. Once you get the connecting wires disconnected, you can use a simple ohmmeter to check the resistance of each diode, separately. Check resistance of a diode, then swap the probes and check it again (reverse polarity). If the diode is 'good', it will check with very low resistance in one direction and very high resistance in the other direction. A 'bad' result would be something "other" than those results; usually, it would check with high resistance in both directions [open circuit diode].

If you have NAPA stores in your country, you can order parts from them. If not, you can order parts from them (or other store) via the internet.

You need to purchase any individual diodes or the "triad" set (as needed, per your testing). You should also order a set of (graphite) brushes for that unit. To make a proper order, the model and/or part number of that alternator needs to be included so they can send you the correct parts.

You might also take your alternator to a local "starter & alternator repair shop". They may have the needed parts or be able to get them.

Good luck!
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Old Apr 17, 2012 | 06:57 AM
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Thanks for all the help

where is the part number located? only the name on the back and a sticker with the duralast part number.

Did some searching would I be right to say that its a 10si 63 amp at 9'o clock?




Last edited by briaineo; Apr 17, 2012 at 08:00 AM.
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Old Apr 17, 2012 | 08:50 AM
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Victory Lap GMA-01 Alternator Repair Kit is probably what you need. It is a kit for the 10 and 12 SI alternators from GM.
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Old Apr 17, 2012 | 09:06 AM
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The "10 or 12 SI" designation is what you need when ordering repair parts. If you have access to the 'Victory' kit, fine. If not, see if generic parts for the SI alternators are available from another source.
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Old Apr 17, 2012 | 09:36 AM
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i bought my 10si rebuild kit thru ebay
http://www.ebay.com.au/itm/Alternato...item2c610cfc28

they sell many different kits, this was only a few $ more for the complete kit with bearings/rectifier etc.

rebuild was very easy, about 2hrs, pull apart, clean, replace parts and reinstall


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Old Apr 17, 2012 | 10:50 AM
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www.alternatorparts.com
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Old Apr 17, 2012 | 07:19 PM
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Call Nations Electric: http://www.nationsautoelectric.com/altparts.html

I recommend them highly. They are great to work with give great service and make quality products.

Dave
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Old Apr 26, 2012 | 04:11 AM
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Thanks of all the help

I ordered a rebuild kit. But since I order the kit i've opened up the alternator and tested the diodes and they are fine also the brushes have plenty of life left.

Question is how do I test the voltage regulator and rectifier?

Think I made a bit of a mistake when ordering the kit: it does not include a new rectifier or capacitor
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Old Apr 26, 2012 | 07:53 AM
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go ahead and replace them, actually everything that comes in the rebuild kit, saves doing it twice
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Old Apr 26, 2012 | 08:57 AM
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If you've checked the diodes and they test 'good', but you had problems with the alternator...then you need to replace the regulator module for sure.
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Old Apr 26, 2012 | 09:53 AM
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Going to replace everything thats in the kit.

But is there any way to check the rectifier and regulator?

Mainly the rectifier and capacitor because the kit I got doesnt contain them.
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Old Apr 26, 2012 | 10:24 AM
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this one,
http://www.google.com/url?sa=t&rct=j...fAP1yLUO9cqBMA
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