Alternator Rebuild

Having switched out my OEM alternator for a high output replacement it is a good idea to keep a spare in good working order for when the need may arise. In this video, I'll tear down the old OEM alternator and rebuild it with new parts to keep it in like new conditions. The idea being to keep this in the truck in case the non-OEM HO alternator decides to fail in an inopportune time.

Notes:
22mm nut on pulley torqued to 81 ft-lbs

List of all part numbers:
27370-75060 Brush Assembly
27388-42010 Brush Cover
27443-63020 Bearing Cover
90099-10140 Bearing (rear)
90099-10192 Bearing (front)
27064-42010 Seal Sub-assembly
27384-50030 Washer
27387-42021 Insulation Washer
27389-42010 Terminal Insulator (need 4)

[KefirTView]

I'm not even looking to rebuild and alternator and you had me watching from start to finish with your EXCELLENT step-by-step instruction with very helpful commentary all along the way. Practice this method and your channel and you'll grow exponentially, as others are lacking in this type of quality production.

[jordainian]

Gunna be doin this myself pretty soon. All the parts are showing up sometime this week. Thanks for the walkthrough!

[NancyBobWieking]

Please try electric heat gun or penetrating oil before you reach for the hammer and pry bar! Nice demo!

[franciscocastaneda]

Can you show us how testing and ready to install it, very good video and professional.

[denzelcrocker]

Hello,
I rebuild My alternator. When Spinning it, it makes a weire noise

[doradean]

Hi! I have pretty old car and started hearing whiny noise from the alternator. I would like to have my alternator fully rebuild while it gets disassembled. What should i ask to get done when i go to a alternator rebuild shop?

[StockDude]

Great video bud! I did notice a leftover screw on the bench tho.
JK. 😆
How much will I generally spend for all the parts to do a complete rebuild like this? Is it a kit you buy?
And how long does it take generally, about 3 hours?
These questions will determine if it's worth it to me to spend the time to rebuild one myself.
And what is the most common problem as to why an alternator even "goes out"? Is it the brushes? or can it be the rectifier or the regulator? Don't those need to be tested to find out if that's the actual reason it croaked?

[unkjason]

How did you know if the other parts were still good. It seems like the main reason to take it apart was the bearings. Obviously you replaced a few washers and insulators.

[petrhoward]

Process of elimination. Replace everything you can and hopefully it will work once you have done that. Personally, I would troubleshoot the alternator and fix whats wrong with it.

[patricklim]

check wirings and terminals before replacing the alternator as well.
mine was cracked battery terminal, why it didn't get charged

[klaromio]

Will a 6 ton press work for the press work or does it have to be the 12 ton you have? Thanks

[alejandrojofre]

Great job there! I'm currenly replacing both bearings on an alternator a lot like yours if not the same....I root caused an annoying sound to those bearings...but now I dunno...Anyways, my question to you if I may is what is the purpose of that little washer you replaced in front of one of them bearinngs? I mean, I don't have it new and wonder if that was the source of the annoying sound at start up....would it be ok not to place it at all? I could always reuse the old one anyhow... Cheers!

[ronmann]

Where can I find parts to rebuild the alternator for a 03 Honda S2k?

[jdmDCftw]

You all used OEM replacement parts? Any recommendations on aftermarket replacement parts that work "just as well" like from denso/aisin or something?
My 4runner is just a DD beater type of vehicle. I don't need everything to be best of the best if you know what I mean

[collinskhosana]

Great video and straight forward, thanks.
Where do you get all replacement parts?

[JoyLong]

Are the parts used for rebuild universal for any alternator?

[FactsMattersUSA]

If you have a huge press machine, you’re in business lol

[Surroundnutz]

How much did this kit cost? Where can i buy the kit

[davidvalens]

do you have the model number for your press?

[davidvalens]

which website did you order your replacement parts from?