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This is actually a super interesting lost process. When you needed an alternator in the Old days, mechanics used to rebuild them now they just replace them. Super cool to see this guy do it

20 years ago when I was in Highschool our auto teacher taught us how to rebuild alternators, break calipers and starters. Pretty good chance one was gunna go bad on our cars and we had no money. Im glad he did, I do it to this day.

This is beyond most people's ability. In fact most do not have all the tools, the press or the vise. I appreciate the work that went into it.

Good video to be fair it's nice to see something rejuvenated instead of buying new so props to you for that the only slight thing is should of masking tape the mounting bracket as cars use the bracket as the ground, other than that it looks great though, I don't understand the folk that saying bad things , keep up these restoration type videos they are good to watch, and make a different change of pace

Cool video but I would offer one recommendation. When cleaning the stator core iron laminations always run your cleaning tool parallel to the laminations. If you run the tool across the laminations and accidentally smear some metal across the laminations you will short the laminations together potentially creating a hot spot in the core.

This saved me on a 1990s rare alternator that could not be bought or replaced on an old JDM vehicle, I even found out I could use a different regulator in the body thanks to you and how to dissasemble it!! Thank you!

Good work. I did something very similar with mine. Just a note, the mounting point where it's connected to the engine bracket is actually a negative terminal, so you may want to sand off the paint from there. Otherwise, it will give negative through the bolts, which is not always good.

Very nice work. Thanks for taking the time to edit this to perfection!

"My alternator is broken!" "What's wrong with it?" "It's not orange!"

cool restoration, but id like to see a ground side voltage drop test under load on that puppy.

Thanks for showing me that buying a new alternator is an amazing value.

It's the small things in life you can really appreciate and this is one of them. Love this

Bravo mate. Love these style videos; no stupid music. No long back story. No bullshit. Just straight to the point. Fantastic amsr sounds. Excellent filming. Attention to detail. Love it. I would love to speak with you about possibly having you rebuild an alternator for me.

Wow! The repaired alternator looks expensive than the original.. "Sana All"!

What I am really starting to love about this crazy rebuild journey I am on “M54 E46” is when I want a rebuild video for a part it is there. Nice video Autodocs

This is so cool for you to make and share. The work shows that it's possible to repair, but also shows why it's a rational thing to purchase new. Not many part shops would show you in detail how to save cash, instead of just explaining why it's difficult, you show how and why. Thanks!

this video makes me feel i can do a rebuild myself. saving me a ton of money.

Wow, the art of making shit better. That alternator is never going to die. This is so inspiring. A job well done.

I came here to study rebuilding an alternator for my Dodge Ram 1500 work truck. While I can afford a new one, I just knew there was a more affordable way cost wise; not sure if it’s more efficient time-wise. Nonetheless, I think I will buy the new alternator, and learn to rebuild the old one using this video and others. I’m even considering pulling the new one after the rebuild, and just use the new one as a backup. This was a satisfying watch start to finish. I think the only skill I like at this point is soldering which I can acquire with some training as well. Lastly, I’d need to acquire a few of the tools he used that I don’t have, but most everything else is covered. Thanks for the vid brother; straight to the point, and great visuals and title guides, oh AND NO TALKING 😂!!! Gained another subscriber.

Both the craftsmanship and the video editing skills were on point, very entertaining to watch! Also very informative, I have to replace the bearings on my alternator soon, this will be a good reference

What is the average cost of having someone repair an alternator, and how long will a repaired one last on average? Great to watch this man work.

I think it was more fun watching you do it. Cant see myself rebuilding an alternator anytime these days anymore

This is complete overkill but very educational and interesting. Loved it.

The Alternator is like a neglected child under the hood

I really wish you would say what products were being used (like the detergents)

And now it does not work since the ground is through the alternator body and it is covered in paint?

Excellent work but this is work for a professional not for DIY , better to buy a new one :)) Thanks for the video!!!

3:10 looks like some Star Wars space crap you’d find on Tattoine

The amount of work, skills and parts that when to this. It probably cost more than a new one

That’s pretty dope, now I want to do that to my alternator.

Виглядає гарно, але ви зробили цей генератор не робочим. Ви завфарбували геть всі точки масси). Регулятор не запустить генератор бо він не отримає мінус. При нагріванні генератора краска злетить. Відео як інструкцію , як відреставрувати генератор, не можна дивитись. Відео лише для зорового кайфу.

Extremely intricate. Needs a lot of practice and accuracy. Thanks for this presentation

I wish there was a place where I could get the same quality service where I live :(

Alot of parts arent available anymore for old alternators. Had to source a complete replacement for mine since the rebuildable parts are non existent!

Now this is a true and real car mechanic. Everyone can replace part but only true mechanic can repair it.

WOW - a 10 of 10 !!!! Great Work!

I also love bringing ‘broken’ items back from the dead. This was so good!

I love that ya'll do these videos but its almost like it would be cheaper to buy a new alternator if you don't have these tools to do the job.

This was cool to watch. Seems a bit beyond my DIY ability. I'll definitely check this channel out more, though. Might be other useful vids for my VW. Thank you!

it was a blast watching the whole video, very well done editing congratulations.

Aye! This was very interesting! I've been using your videos for my VWs for quite a few repairs now. Respect from Daytona Beach Florida!

He fix the contact and gave a treat to the shell. Thats why it worth. If he had to rewire the coil probably it wouldn’t compensate

I wish this would become the norm again, instead of just throwing away ur old worn stuff, refurbish it! Dx This was an amazing video

So satisfying seeing the body get cleaned ❤

Great video thanks for all the effort. I was wondering why you didn’t use grease when pressing in the new bearings?

Some people really have plenty of time to restore their alternator 😊

Alternator Story Time: Had a 1986 Pontiac Firebird once. One evening going down the highway, the faster I went, the brighter the lights became. I limped the car home, going slow, as to not burn everything up. I took the alternator out, replaced the voltage regulator and the same thing happened? NAPA said the "new" voltage regulator I just bought from them was bad 🤔 so I purchased another voltage regulator. The alternator worked just fine after that. Definitely time consuming doing the repair twice!

Looks really smart... there is a positive terminal, how does the alternator ground to the battery? Generally through the engine block via the alternator mount then the earth strap. Here it has to go through a layer of nice orange paint. ie) mask the mounting faces before painting if you want the alternator to work.

This had to have taken 3 hours, with a shop rate of $75/hr that's $225 plus rectifier cost, bearing cost, nrw hardware. This is an enthusiasts job

I'm watching this and I don't even have an idea what's an alternator is, KZfaq just recommended this to me, even though I don't own a car.

very insightful

Ahhh This video is super relaxing. It's pretty much ASMR😁

Дружище попробуй пескоструем сбивать грязь и ты удивишься на сколько это быстро и легко.

My grandfather used to work at a gas station/auto repair shop back in the 70’s. He said when someone drove in with a bad alternator, they’d tell the customer “No problem! I’ll get you a new one. Be back in 30 minutes.” They’d take the bad one out back into the shop, disassemble it, clean it up like this video, and paint it with silver rally wheel paint to make it look brand new. 15 minutes to take it apart, clean it, and spray it after making sure it works. 15 minutes for the paint to dry. They’d come out to the customer with the old alternator and sell it as a brand new one. That’s one of the ways the shop made extra money.

Sick turbo you got there

Love watching this but given the amount of time, it's cheaper to pay a mechanic to replace it. This guy just made that look super easy when most people struggle just to change a tyre.

Beautiful work

I mean an alternator is so cheap already that if youre gonna replace the internals for 70% of the cost of a new one, you might as well just swap the whole thing so some other small piece among your old internals doesnt force you to have to do this job again.

is this really worth it if i can buy a new one, i mean the parts to do this must be more expensive than a new one or just as much

this is just pleasing to eyes, but in reality replacing would be more cost effective!

Amazing thank you for help!!!

Amazing job sir....realy fascinating to watch you do that....

Great video idea! Especially since the alternator I ordered from Autodoc was defective right out of the box!

This is pretty good... If you are doing a resto mod and trying to have your engine look like a piece of art... knowing this things sure helps. On a pratical stand for todays days it just isnt feasible as is more cost effective to buy a new one and put it than repairing or refurbishing an old one unless its one of a kind and you cant find new ones or used ones. A great video nevertheless.

Worked on a line that made rotors, don't miss seeing alternators broke down lol

Stunningly good work, enjoyed watching it!

Wooooow! Just wow!

Great detail.

I don't even have a car, but i enjoy this 😂

Great video! DIY repair for AC compressor if possible please!

not a practical repair for most (requires pressing, soldering, not a guaranteed repair) and even if one has the required tools and skills a replacement may be more than worth their time. having said that, i love the idea of keeping something usable out of scrap, the video is great, and i love the black and orange paint! keep up the good work

Nice job I always prefer to repair the original part instead of replacing it with an aftermarket even more if it's the alternator or starter motor

Neat i like it when parts get re-used :)

Awesome video! Makes me wanna rebuild by alternator. lol.

This was one of those "satisfying to watch" videos. I was also wondering how the brushes were going to be kept out of the way.

Brilliant. So much better than throwing it in the trash.

1:45 safety glasses would be a good idea.

This guy is good new techniques to all car enthusiasts

Piece of art

This is a complete blast!!!

One of the best and most helpful KZfaq channels out there.

Un trabajo minucioso y excelente! Solo haría algo así para un coche de exposición, aún así muy buena atención al detalle 👍

Nice, just ordered my parts for my original Honda alternator. an aftermarket one i have on now works but gives a dashboard light so i'm going to try replacing the bearings and brushes on mine, it did still charge just rattle. Seeing an alternator being painted here never crossed my mind, it looks nice, might try it. replacing some parts comes out insanely much cheaper than getting a new one. the difference is 20€ vs around 1000€ excluding labour of course.

I changed the alternator for my 2006 car several times in the past year, always buying used and reparing it, they always looked very dirty, only lately I ordered a new one Bosch online, everything has been expensive. When i watched this video now i was thinking how were they repairing it and why don't they repair the ones they sell as good as in this video... Bravo

This was awesome

Satisfying to watch. Silence is under rated.

Excellent job and inspiring ❤

For those of you that don’t know. This is what we call a remanufactured or “remaned” alternator

This is my fathers line of work He is retired now but occasionally he rebuilds things like this I asked why, and he answered: "to keep my mind sharp" Actually right now he is working on a generator and an alternator for a small fishing boat Behind him is my cousins motorcycle, waiting to be repaired

More work than I would ever do on an alternator. But can't argue with the end result. It looks great.

love this video rather than the parts exchange video. 👍🏻👍🏻

What is that drip/ tray they you were cleaning parts over?

The coils have lacquer on them to prevent them from shorting out. Is there any concern with using cleaners on the coils that might degrade the lacquer and lead to an electrical short later on?

great job

Professional guy

And it's better to recycle, re use, repair vs discarding and buying another alternator. Better for the environment. More sustainable and less shit in landfills. Again bravo.

bit concerned about painting the stator from the outside. is that cool?

This particular brand of altenator (Mitsubishi) is a very common system used by many manufacturers like Suzuki, Honda, Mitsubishi, Mazda, etc. with different regulators, communication protocols and mounting ears , and it can have four main weakness: regulator, stator, rotor, and contact points. Regulators: all D-P pin marked regulators (com. protocol introduced by Mazda in the very early times) with the three pin layout connector are sensitive, and commonly die if the brushes making arcs, because of the wear and grooves of the sliprings. It's the same with the honda three pin connector C communication protocol regulators. The toyota type two by two pin connector regulators with P-D or C data communication and all other regulators with lamp outlet are very reliable and mostly survive the harsh conditions like induction and high voltage peaks from the slipring sparks. Stator: They use a special thin surface impregnation (black epoxy) on the stator dynamo plates, instead of insulating sheets. 1 of three of this altenators need a stator rewinding, because, as the plates corrode, they expand and getting closer to the winding loops at the edges and making a ground short circuit. Faulty, expanded, corroded stators are valuable, because there are no other good alternative for them to replace. Chineese, aftermarket stators has very bad quality, low quality copper and non ferromagnetic steel plates which gets them overheated and burnt all the time. The factory stators can be burnt out, cooled down on a supporting cylinder, corrected on the lathe and rewinded by specialist using insulating sheets inserted into the grooves. Rotor: the slipring-brush pairment is overall optimal on this altenator system, so sliprings often need just to be turned and polished on the lathe to remove the grooves. But, as the sliprings are bigger diameter then usual, they have a higher tangetial velocity so even small grooves on the sliprings can lead into brush sparking and popping, and that small thing makes the altenator bad. Always check brush twisted connecting wire for fatigue. In 1 out of 10 altenators the rotor coil outlet wires around the slipring soldering or inside the insulator tube corrode (green corrosion product is visible) and the rotor coil gets a wire break, which is often invisible, because it can happen inside the coil too. First case can be easely repaired if there is enough wire lenght left to make an extension. Always use FBS glue fillout to take off the centrifugal loads from the the soldered connection. Contact points: Inside the altenator the negative power diode bridge and the ground point of the regulator are making the ground contact directly through the internal aluminia surface of the back case. This promotes the contact corrosion of the backcase and it leads into regulator malfuncion and high internal voltage drop (low voltage charge output on the vehicles grid), so in mani cases the altenator needs to be cleaned at this contact surfaces to resurrect. Older Mazdas have the windscreen washer fluid filling hole near the altenator connector, so small leaks slowly corrode the altenator connector wires. My opinion on the video: rust removal and painting the stator is necessary to prevent the corrosion and expansion, but painting the inside oft the back cover is a mistake, and the ground contact surfaces will never make contact again.

Good job👍