DIY alternator repair | AUTODOC tips

[@autodocuk]

What did you think of the video? Let us know in the comments 💬 Don't forget to subscribe to our channel and click on the notification bell 🔔

[@אלִיהו-ז8ס]

Excellent

[@seandeterman2499]

Super cool, but won't those bolts and screws be rusty within a couple of weeks? When you wire brushed them you took off whatever zinc coating (or other coating) they had. Cool stuff though 👍

[@byfunkyoid2917]

I would replace all the screws but other than that it’s great.

[@shimi9671]

Very nice video , I like your detailed videos and excellent work methods like with the freezing spray

[@PaulB__]

More of these please!

[@JoshHookerJoshhook123]

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

[@autodocuk]

Thank you for sharing your opinion with us.

[@JoshHookerJoshhook123]

@@superbeast8373 It’s just how there used to be radiator shops everywhere you look, people would just fix your radiator, now you just buy a new one

[@AntiqueMeme]

@@superbeast8373 yeah that's their point. you cant get it done anymore cuz no one wants to do it.

[@belsayshootingground]

They get shipped off to India and they rebuild them. They probably sell them back to us as new! 😂

[@hollow34]

Pretty sure we are sold reconditioned, they ask for old ones back or they charge you a fortune. Same for starter motors.

[@jwhmerica504]

20 years ago when I was in Highschool our auto teacher taught us how to rebuild alternators, brake 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.

[@autodocuk]

Thank you for sharing your story with us!

[@kd2239]

You were taught about maintaining cars in highschool? Thats very cool. Where i'm from (Ireland) they teach us religion, irish and latin. Absolute bollox nonsense.

[@jwhmerica504]

@@kd2239 lol, it’s very common in the US to have woodworking, automotive and small engine classes.

[@georgel3657]

I was excited to start woodwork in year 9, start of the class my friend and I were pretending to duel with dowel rod... teacher banned us from ever doing the class and we had to take cooking instead, "you will NEVER learn woodworking because you're silly and irresponsible!!" Fast forward 15 years and we realised I was the carpenter doing his loft conversion

[@aakudev]

Nice, do you think rectifiers and other parts need to be replaced? Or can be cleaned properly and the alternator would start working again.

[@nathannolan1593]

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!

[@kingchris1233]

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.

[@boobrowsky]

If you like having your cars in top condition and enjoy working mechanically you quickly find out that having tools and hobby is better than paying for gamble called mechanicall roulette. + no mechanic gives single sheet for tiny details... You can do it far more a better than some worker under time pressure. And no one gonna make things like replacing hardware with stainless where it makes sense

[@PaulB__]

@@boobrowsky 100% true.

[@CanadianPenguin_]

If you work on your own car your gonna have most of those tools. Soldering iron and multi meter you can get fairly cheap, you can get away with no press if you use a hammer carefully, a lot of parts shops offer rental for bearing pullers or ever let you borrow it for free for a day.

[@zZBucketsZz]

Was thinking the same thing, Maybe advanced diy

[@tommost1]

If you don't have a vise in your shop then go out and get one right away. They're indispensable.

[@johnjensen2217]

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.

[@kiyoponnn]

thanks for the tip, I will keep this in mind if I ever attempt this

[@autodocuk]

We are sure that your comment will be useful for many of our viewers.

[@RAIMAN-nc5ht]

на самом деле эти пластины и так закорочены но дело в том что они хоть и закорочены но они не создают толщу в которой могли бы наводиться большие токи и заусенцы неиграют большую роль

[@Gizmo1992]

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

[@autodocuk]

Thank you for your opinion, we will take your advice for future videos.

[@tcollogan]

@@autodocuk not a opinion when it is infact a earthing point that you've insulated... 😉

[@IndorilNerevar]

@@tcollogan some alternators have dedicated ground wires, but good point

[@davidparker9676]

@@tcollogan LOL! But it is orange, so that is worth an extra 100 horsepower.

[@masterprogrammer8332]

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.

[@autodocuk]

We are sure that your comment will be useful for many of our viewers.

[@Tito_lim]

Im a GSE mechanic when i was 18yrs old when my first rebuild alternator of aircraft TUG and now im 25 still rebuilding alternator... So glad to see someone rebuilding alternator 😌 you did a great job brother 😁

[@NightWear21]

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

[@autodocuk]

[@julianus_dux_bellorum9585]

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.

[@autodocuk]

Unfortunately, we do not have a service station and we do not provide auto repair services.

[@giffjp]

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

[@autodocuk]

Thank you for sharing your opinion with us.

[@boobrowsky]

Only thing AD can do perfectly xd

[@GrandePunto8V]

Painting "ground" connections is a lame thing to do. No "perfection" here.

[@georgegarside-dv6xy]

someone that knows how to treat a car right. love to see it. in a throw away society i salute anyone who wants to love fix and repair. good stuff auto doc

[@freedoms9961]

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

[@cap2c484]

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

[@autodocuk]

Thanks for your reply!

[@DogsOnAcid]

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

[@ReallionaireDad]

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.

[@MiniH0p]

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

[@davidparker9676]

I wonder why the video creator didn't "favorite" your comment? When your alternator is painted orange, you don't need grounds.

[@autodocuk]

In our video, we have demonstrated the basic steps to repair a generator. This video is for educational purposes only and does not guarantee a specific result.

[@davidparker9676]

@@autodocuk If it is for educational purposes, why don't you show how to do it right? Nobody needs an education of the wrong way to do things. To add insult to injury, inexperienced people will watch your video and repeat the process you demonstrated, resulting in poor grounding issues.

[@marcuswaterloo]

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

[@mummyjohn]

All the comments calling this a "lost art" or saying "nobody does this anymore" are obnoxious. I went online, searched "alternator shop," discovered one literally five minutes away, no shortage of business, and they did a bang-up job.

[@Chris-fj9ir]

We have 1 guy in town thay does this. Wait is about 1 hour. 90n bucks... saving me almost 200 bucks for a chineese inferior part. Always rebuild real jdm over commies parts

[@Doesntmatter-xc8ur]

Right shop labor is anywhere from $190 to $225 an hour now. It’s not that mechanics can’t it’s that it would cost to much to make this feasible. For what’s a 15 minute job on some vehicles.

[@mummyjohn]

@@Doesntmatter-xc8ur the slip rings were worn down. they repaired it and cleaned the hell out of everything (decades under the hood of a diesel don't leave it clean) all out the door for $125.

[@TorgeirBerge]

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!

[@autodocuk]

Thanks for the clarification, we'll think about what we can do with this in new videos.

[@peterharrell7305]

Once blew an alternator in shop class back in high scholl, like a big ol' dummy. My teacher made me go to an alternator shop to learn how to rebuild it. Was the best experience i had in high school. It began my love of all things electrical.

[@rigilkentaurus3313]

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

[@autodocuk]

We are glad that this video was useful to you!

[@austin702]

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

[@brokenworld1]

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.

[@davidparker9676]

Get outa here with your knowledge and facts.... you are interrupting the circlejerk! Who needs grounds on their charging system anyway? The Orange paint now makes it a racing alternator good for an extra 200hp.

[@brokenworld1]

@@davidparker9676 Please accept my sincerest apology. As you were mystery Autodoc mechanic.

[@davidparker9676]

@@brokenworld1 Apology accepted. But first you must post at least 10 glowing positive comments without mentioning the obvious problems. The circle-jerk must continue!

[@alexanderwoolley1623]

@@davidparker9676 man it's just bots in the comments of the video, nobody with absolutely any knowledge of cars would blindly be posting that he did an 'amazing job'

[@davidparker9676]

@@alexanderwoolley1623 The orange paint should have been the red flag for a quality build. Such tasteful mods.

[@danceHHmusic]

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

[@abeluna3973]

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

[@davidparker9676]

Skip all the other steps, just paint it orange.

[@autodocuk]

We are glad that you enjoy our work!

[@deepakmahtani3061]

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

[@autodocuk]

Thank you for sharing your opinion with us.

[@RaticaThePunta]

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

[@SethsPhone]

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

[@tullgutten]

Yep that's why we mechanic's replace more parts but we send them to be refurbished and get an refurbished back usually, much cheaper that way and the refurbisher stands for the part warranty

[@tedkeijzer8087]

rectify deez nuts

[@amhr58]

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!

[@nickaa827]

You can do it! I partially rebuilt my alternator on my 99 RAV4, I just mean replacing the brushes and regulator. Luckily my bearings were in fine shape but had I needed to replace them I could've. They sell kits online with everything you need .

[@nehemiahjackson]

BRO ABSOLUTELY OUTSTANDING WORK U R THE BEST JOB WELL DONE

[@Olivaresluz]

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

[@not_heretoday]

The labour alone would be far more then the cost of a new alternator. But the knowledge of how to service one could be very beneficial in the long run.

[@caiohenrique-kh7on]

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

[@Javardo69]

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

[@autodocuk]

Thank you for sharing your opinion with us.

[@jackfraley9590]

What’s the name of that screwdriver tool used in the beginning? I’ve never seen anything like it but it looks super useful

[@autodocuk]

this is an impact screwdriver, you can find it at the link www.autodoc.co.uk/yato/13639278?search=YATO%20Impact%20Screwdriver%20(YT-2802)

[@omerfarukc.6261]

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

[@autodocuk]

We are glad that this video was useful to you!

[@ejaydc8198]

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

[@HelgiThorisson]

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

[@uranusneptun5239]

Isn't the body made of aluminium?

[@HelgiThorisson]

@@uranusneptun5239 indeed it is made out of aluminium alloy and often the engine block too which it is attached to. The engine is grounded with a wire and that is the only ground the alternator uses. All the contacting surfaces have to be fairly clean between the engine and the alternator and between all bolts and alternator.

[@bonifacijus11]

yes, exactly..at last someone nose shit;

[@unidentified-27]

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

[@autodocuk]

We appreciate your feedback! And we are pleased to know that you liked our video.

[@us7876]

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

[@autodocuk]

Muchas gracias por la reseña.

[@24hrs365]

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.

[@spy2light525]

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

[@kevinl3235]

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!

[@deedle6073]

Wouldn't painting it interfere with the heat dissipation?

[@alejandroperez5368]

Interesting question. This is mentioned when painting brake calipers too.

[@us7876]

Neither alternator housing or caliper have heat dissipation as a primary function. Since they are not static parts (internal rotation moves air plus the car is moving) there should't be a problem. Also painting a literal heatsing with several coats (~0,2mm) only worsen temps by 2-5°C increase

[@bigboy3jv]

This was really satisfying and fun to watch.

[@Omardottcom]

Great video. superb quality. Kinda of relaxing. But uh yeah, after see all of this,… I’ll just buy a remanufactured one with a lifetime warranty.😂 That was slot of work I’m not willing to do myself.

[@autodocuk]

Thank you for sharing your opinion with us!

[@suavepoipoi]

So satisfying seeing the body get cleaned ❤

[@georgehanganu6754]

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

[@autodocuk]

We are sure that your comment will be useful for many of our viewers.

[@roborovsky6950]

The thing is that most of the parts like this you find online are refurbished original parts. Usually if it requires the old part in exchange for the new part, it's definetly a refurbished one.

[@KekeeBlack]

Yes 100%. It is worth an attempt at repair for original parts because you know it worked at one point. The new parts you have no idea if they work or if they are going to go bad in 500 miles because manufacturing tolerances have gone out of whack these past few years. I also don’t want to wait months on a new OEM part. The 1 or 2 days this takes to do, to me at least, is worth it to avoid waiting 4 months on a $300 part.

[@justchris846]

The Wrench, Belt combination to hold the pulley in place is genius! Should work on all pulleys?

[@autodocuk]

We cannot tell for sure. You can find this information in the technical documentation for the repair of your car.

[@АрсенМозоль]

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.

[@bonifacijus11]

maladec;

[@frolovsi]

Ну хоть один человек понимающий в вопросе.

[@1esaus]

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

[@jaswats9645]

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

[@adityaunni3533]

Is it supposed to turn black that way?

[@Zi9makin9]

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

[@kristoffay1476]

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.

[@johntello8904]

Jesus Christ

[@ogi-wankenobi3638]

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

[@Kenshin_Tran]

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

[@bluewanderer9903]

Amazing. Would love to do this to mine if I could find bearings.

[@autodocuk]

We are glad that you enjoy our work!

[@gaspuu]

The bearings in alternators are standardized and can be found in hardware stores. You just need to find the specific bearings for your alternator. I mean, it doesn't have to be a car parts store.

[@bluewanderer9903]

@@gaspuu thank you 👍

[@boksaboki]

There are markings on bearings, find them, write them down and go to shopping

[@MadLadCustoms]

Look for the number pressed into the place. ALSO your pulleys for the belt are serviceable as well, as long as you know the number!

[@C.J_the_Goat]

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

[@davidparker9676]

I love not wasting time or money on special tools I will only use once or twice in a lifetime. Buy a rebuilt exchange unit with a guarantee.

[@C.J_the_Goat]

@@davidparker9676 Good for you bro. No one asked.

[@davidparker9676]

@@C.J_the_Goat Maybe you can work on reviving your brain next. Just spray paint it orange and you'll become a genius!

[@syafiqdante]

Over here, the alternator is changed due to diminished carbon brush. Very rare case for the bearing to spoiled first than the carbon brush.

[@OtherDalfite]

Wow, the carbon brush wore out? Here in the US, it seems like most of the time the diode packs go out before anything, even the brushes.

[@syafiqdante]

​@@OtherDalfite Yes, there are times where the diodes would go out... Its either the diodes or the carbon brush.

[@mundocpc]

Nice video! Ironically, most people that have the tools to disassemble and rebuild an alternator already know how to do it, but it is great content anyway.

[@autodocuk]

Thank you for your comment! We are pleased that you liked our video.

[@shaagealgareb9189]

very nice...thank you

[@StefanCiob]

NICE

[@Tuxlion]

Great video but poor job on actually showing how to repair. Things aren't explained and while Im all for showing instead of telling, I wouldnt know what Im checking for in the electronics or why you needed to replace those parts or what I would do if I need to replace or fix any of the other parts.

[@autodocuk]

Thanks for the clarification, we’ll think about what we can do with this in new videos.

[@masterchiefer25]

I loved the video. Thought y'all did an exceptional job showing everything to do. For the electrical part, that other commentor could just look up a wiring diagram.

[@Tuxlion]

​@@masterchiefer25well sure a diagram would help but that still doesn't fix the issue of diagnosing the problems in the first place nor would a wiring diagram include anything about bad bearings or a damaged housing. These may seem obvious but they really aren't as obvious to everyone as they seem.

[@TheUniqu3]

Yea kinda would’ve been nice to get some explanation of what’s going on. And what’s the purpose of each part. As far as showing us how to take stuff off and put it back on alternator great video.

[@johnrus7661]

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

[@autodocuk]

We hope our videos were useful.

[@brinnie95]

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

[@MattyH64]

Not all alternators can be bought new.

[@أ.محمدمشهدي]

Nice 👌

[@YouNameItGaming]

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

[@autodocuk]

This video is for informational purposes only.

[@SaycoPworrell]

awesome, wish he did a complete rebuild doing a full rewind of the coils.

[@Blozoozozoz]

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?

[@autodocuk]

The cleaning agents used are not aggressive and do not affect the varnish.

[@catchthepug8171]

Definitely gonna save this so I can try it on my 335i alternator.

[@warmaster1001]

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

[@autodocuk]

Hello GrungeRock, Thank you for commenting our video. We are sorry you received faulty generator and we would like to help you. Please, specify your customer and order IDs on [e-mail] and don't forget to mention what issue occured (faulty generator). We will request pictures of it and we also need to know if it was mounted. Don't be worried about it, we will find a solution together! Best regards, Your AUTODOC Team

[@bruz9591]

You can pry and tap the rear housing and stator assembly first before you remove the pulley, this way you can hold the rotor and rattle off the pulley and you wont need a puller to remove the rotor from the rear housing. I would have replaced that slip ring instead of machining it unless you had a spare rotor, also get a bigger soldering iron. Even now i come across units that i rebuilt 15+ years ago i can tell they're mine because of the colour i would paint the stator, there will no mistaking your work in the future. Good job👍

[@autodocuk]

Thank you for the clarification. We are sure that your comment will be useful for many of our viewers.

[@dwaynehead3154]

What a lost art let's help keep this type of information prevalent and acknowledge the vast wealth of knowledge it takes to be a professional.

[@datsnoiper]

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.

[@ShySaMeSy]

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

[@cephasgunn1993]

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.

[@bluewanderer9903]

If you work on your car you will have most if not all of these tools, incl bearing puller, not expensive anyway. And tool collection grows with times.

[@cephasgunn1993]

@@bluewanderer9903 sooo true man, I'm currently building my range and am looking forward to when i can say yup got all of em, instead of now where I'm like damnit, refer to comment above. :P Appreciate your response lad.

[@bluewanderer9903]

@@cephasgunn1993 it will all add up you'll see, you dont need to go mad spending neither, buy as you need or as job requires. And even cheaper tools will last you forever since you wont be taxing them every day all day long. I have some tools that are over 15yrs old and they are still in great/like new condition and it feels good to use them again and again. If you have interest in cars or general diy and you know you will be doing it then its good to have tools. I am at stage now where I can maintain all our vehicles incl my job van and it feels great to be honest. Of course if you can afford it go for a better equipment, but my point is you wont need top of the range latest pro tools. When it comes to sockets I would highly recommend quality impact set rather than cv if you use impact gun, which again can be gotten cheap enough.

[@cephasgunn1993]

@@bluewanderer9903 I'm based in the uk, do you have any brand suggestions for the quality end of budget there man, I know what you mean as far as using tools for multiple jobs though, I rebuilt and replaced my rear subframe on my 02 passat and originally bought the tools i needed to do the brake rotors and pads, luckily the 18mm was also what i needed for the subframe bushings felt great i didnt need to get more for that job. most of my kit is teng tools but they can be pricey so i am tryna get other proven companies by suggestion of folks who love to do their own work like myself.

[@Juppie902]

@blue wanderer I work on my car but I don't have a bearing puller yet or bushing press out. how do you press a bearing in without a hydraulic press ?

[@GrahamCrannell]

I'm never, *ever* going to rebuild my alternator when I can just swap it. But *hot damn* this video is interesting. Super well done 👌👌

[@autodocuk]

Thank you for your comment! We are glad to know that you liked our video.

[@CalligraphywithAnas]

Sir which things you are using to clean alternator parts?

[@autodocuk]

There is a list of everything we used in the video in the comment to the video. You can see the cleaner at this link. www.autodoc.co.uk/liqui-moly/9576747?KZbin&

[@stco2426]

Lovely. I like the trick to hold the brushes back. Very good and a great video. What were the cleaning solutions, please?

[@autodocuk]

Thank you for your feedback! In the description of the video, you will find all the links to all the products in the video.

[@ducluong5860]

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

[@FitzroySymisterArt]

We still repair them in Jamaica 🇯🇲 most people just can’t afford a new one 😅and its better for the environment to rebuild something rather than throwing it away and polluting.

[@BenyaminMentchale]

Hi Thank You. What type of solderind was used?

[@jackmessina7709]

Buongiorno se volessi rigenerare l'alternatore della mia mk5 2017 ? Cosa spendo?

[@HOVREDDY]

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.

[@autodocuk]

Thank you for sharing your story with us!

[@Phatdaddy917]

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

[@jesusfreakpl]

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

[@HakimiYT403]

Bruhh.. Is it painting the alternator body not making the grounding worst?, THX

[@Xiltch]

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.

[@Tonyv1951]

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

[@TechBrewGamer]

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

[@Arexodius]

Love it! Came out super clean. One question: Did you not use any anti-seize or dielectric grease when re-assembling? If you go through all of that trouble restoring it, would you not want to prevent future seizes and hiccups? Swapped the alternator on my 1989 Toyota Celica couple of years after I got it. Looked half decent but didn't work. Got a new one for 200 euros. If that one ever fails I might try this instead.

[@autodocuk]

This video is for informational purposes only and does not guarantee a specific result. This video only contains tips and recommendations that may be useful when performing car repairs or replacing parts. It is recommended to entrust the repair / installation to highly qualified specialists to ensure the best result.

[@alexanderk6888]

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.

[@autodocuk]

Thanks for your feedback! We are glad that you liked our video.

[@pawpatina]

1:05 impact driver it set wrong way. can snap bolts over tightening them.

[@RobertYayo]

So only the regulator guts get changed, once gutted, is that what you took off/ installed with the soldering gun?

[@autodocuk]

Thank you for your feedback! Please clarify or rephrase your question.

[@Mohsrz]

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

[@autodocuk]

Thank you for sharing your opinion with us.

[@edwinmalan5142]

Man...if you have the tools , the time and the working area , there's nothing you can't do... excellent workmanship...!

[@seselapaz]

Primer is not necessary before painting? or you can just pait the alternator after cleaning it?

[@Inquiringmindswannaknow]

This guy is good new techniques to all car enthusiasts

[@travisrevis1084]

Was there an actual savings buy rebuilding vs buying a reman?