Alternator repair : Noisy Bearings replacement

[@bmw-e30]

Clear explanatory video without need for silly loud music and unnecessary chat. Well done.

[@michaelovitch]

Thank you : )

[@olddavid4]

That was the best "how-to" video I have ever seen. You deserve some kind of award for doing it w/o words. Loved the smiley face when the hot-cold to shrink and expand worked.

[@michaelovitch]

+olddavid4 Thank you very much : )

[@valdemarzanini6477]

O que presizo e pecas pra alternador tampas mancal rotor estator o rotor cuase reponho novo por causa do balancimento a maioria nao bate com recondicionado

[@Nuriil]

this is what true mechanic looks like. he fix the problem not just throw away parts that actually still working fine, usually a lazy mechanic just throw away this alternator and charge costumer to pay the new one. i respect this guy so much

[@red2g]

Yea im gunna charge you still to do this though, you realize labor is not free right? Lol

[@Nuriil]

@@red2g yes, and?

[@BellesetBeauxDad]

This is the best how-to video I've seen. Very informative, with no blabbering, bad music, or cussing. Thank you very much!

[@michaelovitch]

+BellesetBeauxDad Thank you : )

[@TopFlightSoldier]

This has to be my absolute most favorite KZbin video on replacing bearings

[@michaelovitch]

+Fernando Medina Thank you very much : )

[@vipulsenjaliya3584]

@@michaelovitch

[@marakeshg8112]

heat up the case, freeze the shaft... Dude, you're a genius!!!

[@HUBBABUBBADOOPYDOOP]

Hey, Bro- I just finished a *full rebuild* of my 1989 CS144, and I used your "freezer trick" for the Rotor and *outer* bearing. It worked perfectly! *Thank you so much!* I will be posting a slideshow of my work to my channel in a couple of days.

[@michaelovitch]

+HUBBABUBBA DOOPYDOOP Yeah ! I'm happy it worked well for you : )

[@DavetheRaveDinkum]

Wow Ive been a mechanic for 20 years, Ive seen all sorts of tricks to remove bearing from shafts, but never has an angle grinder been involed lol. Ur freakin awesome to not have caused any damage thats hectic. Nice one mate 👌 I'll stuck with my pullers haha.

[@michaelovitch]

The copper race seats on a plsatic bushing on this one,it's weak as possible,so i didn't even try the puller. It was a sunday afternoon and it had to run ,so i went wold on it lol I'm quite delicate with angle grinders : ) Thanks : )

[@petrocksgarage]

Great video. One tip: a small two or three jaw puller would have made short work of that bearing. They can be rented at most auto parts stores. A lot easier then using a grinder to cut the bearing off, and less chance of damaging the shaft or cooling fins.

[@michaelovitch]

Thank you : ) I have jaw pullers but i didn't even tried it because of the plastic cage where the copper race is fit on. The grinder was the less risky here. If i broke the plastic cage it was done for the alternator and the car was not able to run the monday morning....

[@petrocksgarage]

michaelovitch, I think you are talking about the Alternator’s Slip Ring (with the copper rings that the brushes slide on). Those are replaceable too and available at most auto parts stores fairly inexpensively. Judging from the grooves worn into yours by the brushes, you will need to replace the slip ring in the next year or two.

[@michaelovitch]

Pet Rock's Garage Yep the "slip ring". Thank you : ) this one is only 50 000 kilometers and it should last the same. at least the old ones without the plastic cage did. I didn't know it was replaceable. Here peoples do not even touch the inside of the alternators,i don't even know where to buy parts like this one. I don't know where you are but here they just replace them and dump the "old". peoples are not mechanical work innclined....

[@richfuller]

Around here they let you borrow the tools with just a deposit.

[@petrocksgarage]

@@richfuller, yeah, the deposit is the cost of the tool. You get your money back when you return it on time. But if you don't return it they are still OK because it counts as a sale for them. They don't lose money either way.

[@sponiebr]

Loved it! Seriously, this was a great how to. Even though it made me cringe when I saw the angle grinder I have to hand it to ya, we work with what we have. I LOVE IT! Well done dude.

[@michaelovitch]

Thank you : )

[@mi2tobecontinued]

Gracias por el tutorial hermano! Pensaba que era difícil cambiar los rulemanes. Me ahorre AR$2000!!! Genioooo!!!

[@michaelovitch]

Muchas Gracias !

[@Santoshraj-un6eh]

Farukkhan marliy

[@viczak6307]

Congratulations! You've got serious skills. Ingenuity, skills and patience. A great mix for a successful mechanic.

[@kbzipper]

Nicely compressed into video without sacrificing any details of the job. Thanks!

[@lewishughes7740]

My alternators just gone and I don't see why I can't do what he's just done, great video!

[@riquerod8594]

AWESOME VIDEO, No yapping and right to the point.

[@michaelovitch]

Thank you : )

[@georgestyer2153]

I agree no yap..but a wonderful feeling of pride for a job well done. Anyone can spend money on a new one. Top job..Top man

[@navamani577]

Thank u

[@fixcar111]

awesome video,i have a noisy alternator that i bought bearings for and hadn't got inspired to do anything about. i especially love the components heating and freezing with the bearing essentially falling in place.thank you!

[@michaelovitch]

+fixcar111 Thanks to you : ) Just do it !

[@arthurch9580]

Great mechanical skills. Thank you for making the video. I will try rebuilding mine.

[@guitarwok]

This couldn't be a better video. I really appreciate it.

[@michaelovitch]

Thank you : )

[@electronicshelpcare]

Thanks for the great video.

[@michaelovitch]

Thank you : )

[@bobgreene2892]

Best quality, HD video camera views I have seen. A tripod-mounted camera cannot be used everywhere, but certainly helped here. Your removal of the bearing with an angle grinder shows both care and practice, especially the inner race of the bearing. Continuous sound and screen captions for important points helped orient us, but more caption detail on some parts might help-- especially on the heating and cooling of the aluminum housing. Or, perhaps something as simple and direct as your voice, describing the process in general terms and adding detail, as you go..

[@narancs5]

For those people, who happen to not have an angle grinder: *Use a bearing puller.* Also it is much easier to remove the pulley nut, if you pull the alternator apart, then put the rotor into a vice.

[@richfuller]

I was totally going to make the same suggestions as someone who has a vice and a bearing puller>$20. Vs potentially destroying your alternator with $70 grinder which I have no need for. LOL

[@markw4382]

While a Work bench & more tools are NICE,.... It's VERY NICE, seeing someone show things being done in the Simplest way, with the Simplest basic tools. (the way I had to for many yrs. lol)

[@michaelovitch]

I'm still doing it,even if i have a worbench now lol Sometimes it's easier without the vice lol

[@trssho91]

Not sure why people are hating on this, it's a fun little video (even though I don't plan to do this because it's not worth my time). As far as melting the winding varnish or deforming the housing....right now you have a bad alternator and if it's doesn't work out then you have a bad alternator. Lol

[@jesus_talks]

And if that shit stops working, just buy a new one and use your non-functioning one to get the core charge refund.

[@arthurfitzpatrick7487]

Nice job

[@8bert9]

When you don't have an inductive bearing heater cook one up,lol. I am an industrial maintenance technician and we have an inductive bearing heater. It is for putting the inner race of the bearing back on the shaft. You only have about 30 seconds once you remove the bearing from the heater to get it on the shaft in the right place before it cools and locks on the shaft. If it cools on the shaft in the wrong place its do over time. Nice job on that alternator!! Improvising at its finest! Another way to heat a bearing is get cooking/automotive oil and a thermometer and heat the oil with the bearing submerged in the oil.

[@michaelovitch]

Thanks : ) I 'm an industrial maintenance technician too...lol i've worked at an industrial electric motor repair shop for a short period of time ,and they used that to install bearings on the rotors, the heater was set up at 110 °C. Good idea with the engine oil,i didn't think about that : )

[@8bert9]

Hehe, small world! I also worked for a electric motor/generator shop too back in 1994. I rebuilt the APU's, the power generator side, for Delta airlines. I growled many a commutator, lol. My instructor for my industrial maintenance degree showed us the engine oil trick and it has come in handy through the years :)

[@RANDOMMekhaniks]

To all of you saying "this isn't the right way".....It worked, didn't it? It doesn't have to be done your way.

[@techdavey3486]

I've repaired a good few alternators and I've never known a rear bearing to require replacement. Front bearings can usually be levered off with a pair of small pry bars as they are only pressed on, not shrunk-on. A Chinese generic bearing used to only cost 50p so even after paying for Loctite for the screws there is a huge saving over buying a Service Exchange unit. Allegedly some of those Chinese bearings are made on the same production line as the top brands but they don't put a trademark on them.

[@chandandogra1366]

RactifaR plate nikalna kaisi

[@bharathgaddamadugu6329]

At what cost?

[@chris77777777ify]

Never worth buying cheap unbranded bearings as I’d rather get quality & support companies who care about quality

[@chris77777777ify]

Never worth buying cheap unbranded bearings as I’d rather get quality & support companies who care about quality

[@kenrichmond3946]

6 years late... Been working on my alternator all night. Front bearing is very noisy with a little play. Rear bearing has a very minor amount of noise and a tiny bit of play, but probably has some time left. Vehicle is 22 years old on original alternator 135K miles. Now, I'm having a terrible time getting the rear bearing off the shaft. I cut into it and most of the grease was gone and what little was there was dried up solid and dirty. So, I wouldn't say rear bearings never go bad.

[@jacobitejake]

Excellent video and has saved me the cost of a new alternator, many thanks!

[@michaelovitch]

Thank you very much,i'm really happy to read that : ) Yeah !

[@Gruxxan]

after watching this i think i will just buy a reconditioned alternator

[@michaelovitch]

Why ?

[@aabimexico]

se supone que te gusta la mecanica, porque sino lo mejor seria comprar uno nuevo

[@stephenlam4529]

Gruxxan Agree ! It's good to know how...great video ! Too much time and NUTS involved ! Still have to paid for the bearings.... Provided having the RIGHT ONE ! Getting the wrong parts sure ruin the day even days after !

[@crpth1]

Parts supplier must love people like this. The bearing is bad buy an entire new alternator. Well I've seen people buying an entire new transmission shaft because one rubber boot was gone. :o) As a former mechanic I say these are my "ideal" clients. Literally pay 5x/10x more for an alternator that in most case scenarios outlives the car itself. Consumer society to it's best. LOL :-)

[@markroyds23]

+crpth1 thh i just folloe the dealers advice haha my alternator is rattling like crazy on my civic 08 plate, Honda said a bew alternator will sort it 😧 dear do but suppose ill have no worries with it in future now

[@Matrixu1982]

I have made the same thing with 2 alteranators, but i have change also the colector and the brushes. Works like new. Nice job.

[@michaelovitch]

Thank you : ) After 100 000 miles the brushes are quite worn out looks like.

[@billbegan4080]

I've done qite a few like this and never had a problem,some of the old tricks are the best,you just need some common sense, if you bought every pissy ass tool they make for this and that you would go broke real fast,good technicians know how to do things with less. ,good high speed vid man. 😊

[@michaelovitch]

Thank you very much,i agree : )

[@nikolaromanos456]

Your video is helps will save a lot of money to the car owners by doing itself. thank's a lot Michael.

[@jaydenhills9061]

Great work man!

[@mohdrahman6975]

🤯🤯🤯song sir

[@anoc5511]

So I am guessing... say about couple thousand bolts and screws..:) But what an Amazing video... No Bs and showed every thing in clear detail. Good Job Sir.

[@michaelovitch]

Thank you : )

[@benefieldharcourt9931]

how about when you spark and burn the varnish of the windings with that grinder. we have a bearing puller. as for the freezer and heating up the bearings thats a given.

[@harwoods11]

A good and well executed video. As the title states, it doesn't require any fancy tools, although you could run the risk of damage from that grinder. I would personally use pullers and press tools. But, a very good video.

[@michaelovitch]

Thank you : ) the cage,where the copper race is ,is made of plastic...it would be really dangerous to use a puller here. Those units are not supposed to be rebuilt like i did.

[@szaki]

LOL! How about using a bearing puller?

[@michaelovitch]

+szaki I thought too,until i saw the plastic caged copper race... Don't want to break it ,i had to have it to work the monday morning : ) I played it safe : )

[@yazidbenhadj5532]

szaki hrd

[@rebuilderinabox]

LOL! I love these idiots who've never actually done the job before, but think they know what they're doing. They think "Oh yeah, I saw one of them there bearing pullers on the TV, so that should work everywhere there's one of them there bearings."

[@dennisrandall9698]

Mike Lauer---> Hank Hill?

[@prabhakarraokothapalli4796]

szaki Lhm N

[@Reuldonniedah]

Nothing better that a nice cold alternator on a hot summer day

[@michaelovitch]

Yeah,but it was winter there.

[@amieltoriano437]

Thanks bro, now i know how many bearings i can change :D cheers!

[@michaelovitch]

Amiel Toriano Thank you : ) Cheers to you too !

[@luisehernandez01]

it was very easy to understand the explanation about how rebuilt the alternator bearing without damage other parts. Thanks.

[@MaikEletrica]

Very good man!

[@michaelovitch]

Thank you : )

[@neypereiraoficial]

kzbin.info/www/bejne/nni0iJmspNOJkLs

[@donwolfjr1]

There's just something about BRAND...NEW...BEARINGS!!!! Nice work!!! : ) Don W.,Ohio, USA!

[@michaelovitch]

They are smooth and shiny : ) Rhone alpes France next to Lyon : )

[@donwolfjr1]

Very true!! Lol...

[@SomaElectricals]

what is the logic by putting those parts in deep freezer and oven.

[@michaelovitch]

Cold metal shrink hot metal expand So it's easier to insert one in the other.

[@aurinkonz]

That is the reason I gave him a 'like'.

[@MindOverEverything]

Nice! Makes it look like a simple enough job. Going to save me the cost of a new BMW alternator. Thank you, sir.

[@michaelovitch]

: )

[@i.msc.official]

Hard work.... Great job buddy !!!!

[@michaelovitch]

Thank you !!

[@OverlandOne]

Nicely done, thanks.

[@michaelovitch]

Thank you : )

[@piotrwilk8772]

Thank you for great lesson.

[@rd95stang]

Great video, my favorite part was the end🐶🐾

[@michaelovitch]

Thanks : ) 🐶

[@drewreid753]

this is confirmation, they can have my blasted 168 dollars

[@pnwoods]

Unlikely you're still reading comments, but, thank you for this video. Commentators speak of the ease of buying a new/rebuilt alternator. But, not so easy when your 'alternator' is a 1959 Mercedes dc generator, .... with no electric/machine shop within reach to press off seized bearings. ..... & said refurbished generator online at premium $$$.

[@michaelovitch]

Buying is easy when you have the money,or the part... Just cut the bearings,or break them by pressing the outer race in a vice,or grinding a little trench in the inner race,and snapping it in half with ta chizel. Tap the new in place,by the inner race ,if you install on a shaft,or the outer race if you install in a bore. kzbin.info/www/bejne/gmbCZahrgph2qpo You have a 300 sl right ? www.bosch-classic.com/media/bosch_classic/teile_1/nachfertigungen/motor_2/generator/Mini-Katalog__Generator.pdf www.bosch-classic.com/en/internet/bosch_classic/produkte/motor_1/gleichstromgenerator/gleichstromgenerator___mit_teaser_1.html

[@crististreulea]

awsome job!

[@michaelovitch]

Thank you : )

[@mememedelyn2140]

Salut cristi am incercat sa caut la tine un asemenea tutorial dar nu am gasit :) ,tu si explicai ce si cum sa facem, am observat ca nu a mai demontat bara ca sa demonteze alternatorul in schimb a demontat pompa servo , banuiesc ca am si eu ceva probleme la alternator dar nu imi dau seama care ar putea fi ori fulia ori rulmentii , sa existe vreo diferenta de sunet intre rulmenti si fulie atunci cand sunt stricati?

[@crististreulea]

cand o sa am probleme pe acolo, o sa demontez si la mine

[@HandsomeOrHandy]

how do you know what bearings you need to buy?

[@michaelovitch]

It's typed on the bearing itself,on its flank. It looks like a number as : 6200 2 rs The first group of number is the bearing identity,wich corrspond to its dimensions. The number alone is the number of seals ,you sometimes have no seal,one ,or two seals. The letters are the type of seal,polymer,steel,or else. You may have specific info then like the letter "C" or something else wich indictates that it's a low friction higher tomerances bearing. You will not have that on an alternator,it's very standard and simple. You will have two bearinsg,certainly from a different size.

[@cblazer]

omg I make these for a living and I lost tract of the things that will cause your repair to fail prematurely. use lube on black bearings, don't beat on the rotor etc etc. Sorry I'm so used to making them it erks me to see certain things.

[@michaelovitch]

You can do that without problems,all is still working normally today : )

[@whocares8158]

cblazer yeah you make the del cos I get bad out the box all day long

[@romusa9204]

it already failed prematurely because it was made like you say it should be made, Lets try something differently and you do something else for living

[@vraymond108]

Great video. I might have to do this one day at sea so I am glad to see what it takes to accomplish the task. I do have a gear pullers and a rebuild kit but this video showed me that it can be done. Thank you.

[@michaelovitch]

: ) Thanks to you : ) Have a nice work ! It's on a boat ?

[@vraymond108]

Yes, I have a Balmar 24v alternator. I bought the rebuild kit in case I ever do it away from shore. It can become a life and death situation if the alternator bearings suddenly pack up while motoring near the shore because the alternator and water pump are on the same belt. Should be two different belts.

[@michaelovitch]

wow,that's weird. i agree it should be two different belts ,like you say,on a boat,it can be really dangerous... Can't you use a double pulley to separate the two ,with two belts ? What engine is that ?

[@vraymond108]

It is a Perkins 4-236. I could set up a double pulley system but will require some design work.

[@michaelovitch]

If you have this set up,you can just install a smaller belt for the water pump alone ,and the use the current alternator location to install a simple belt tensionner. you can install the alternator on the same actual spot but,slightly moved forward on the engine length to align with the second belt. You need cranckshaft pulley with room for two belts however. www.perkins.com/content/dam/wwwperkins/28711.2.jpeg?$cc-s$ Seen it's a common engine mounted on a lot of equipment,i'm sure you can do that quite "easily".

[@melniksmotors]

by the time you do all that, basically you just bought yourself a new alternator from autozone with 2 or 3 year warranty labor wise. i dont think its worth nearly cutting off you fingers with a cutting tool.

[@michaelovitch]

+George Melnik I don't have this kind of deal here,it would cost around 150, 200 euros to change it.... It was 6 or 7 euros invested here, to repair it.

[@antoineroy5876]

+michaelovitch i need to change my screaming noise bearing on my alternator toyota echo alternator its the original alternator and the car have 275 000 km on it... i wanted to do what you did but my dad an experiented mecanicien worked over 20 years in toyota mechanic told me to never open a chinese alternator because everything is so compact and prescise that when you gona assemble it back and install it on the car something wont work right...

[@michaelovitch]

+Antoine Roy Alternators are not really complex. You can give a try . This one was from 2009 and was repaired quite easily : )

[@antoineroy5876]

+michaelovitch yes im waiting on it to seize or something because im way too busy at the moment to repair it...

[@michaelovitch]

+Antoine Roy If is seizes the auxiliary belt will fry. be careful on that : )

[@15061952]

I have seen geat jobs of this kind made in your country !!! While in my country they tend to change the whole alternator without hesitations.

[@michaelovitch]

I'm french,they change the whole alternator (or the car) to in my country lol

[@EminHVAC]

awesome video buddy.

[@michaelovitch]

Thank you : ) Your job looks pretty cool. Nice channel.

[@mikeward2922]

If only the government and media approached their work like this.... Amazing lesson in working to get the job done

[@rogeraquarium6872]

I'll just buy a new one. Way too much work to fix. Not worth time

[@crpth1]

Yeah sure OEM all the way, preferably brand new not reconditioned. 300€ to 500€, depending on make and model, instead of 10€ in bearings and 1/2 to 1 hour labor. LOL :-)

[@ghost-4230]

It’s not that much work really

[@manuelfernandez862]

Roger's Aquarium recycle may freand .

[@adnanabidi965]

Awesome Video man... Every thing in detail and no BS. And I can't believe how fast you work its like Bionic man. lol

[@michaelovitch]

+Adnan Abidi Thank you : ) I eat my vitamins lol

[@sidshaikh4868]

this is not the right way to do it

[@mikedd87]

It worked, didnt it?

[@RamonLFrancisco]

Very informative video on what bearings look like in the alternator and how to replace it. I think the bearings in my alternator were causing squeaky sound and one of reasons alternator is weak and draining the battery. I don't have all the tools that you have to change it and ordered a re manufactured Bosch alternator for 85 bucks with free shipping from California shipped to New York and should arrive today or Monday. I get updated text messages to let me know where along the way the alternator is on route with USPS. Although your videos are very informative, it is like watching a silent movie and any narration you make before and after the procedure would help as viewers can hear your reasoning. You obviously know a real lot! The stuff in between when you fast forward because takes time to remove so understood not to talk. Thanks.

[@michaelovitch]

Thanks to you : ) I hope you will can solve your drained battery problem. I don't think your alternator is directly in cause ,unless it do not charge your battery anymore. Maybe you have an accessory sucking juice all the time. Is the battery at 12.6 volts after charging it ? Did you check the voltage on battery, engine running, to see if the alternator is charging ? You can use a multimeter inline between the positive post of the battery and the positive cable key off to mesure if something is sucking juice.

[@Bleeper168]

or you can just buy a new alternator

[@michaelovitch]

+Pierce Starcraft Of course. You can do what is the best for your need,ability,budget. It's just an idea for you : )

[@johnszoke586]

Cheap Chinese will cost you 200, German is 500

[@Sydney-Ghumo]

$5 bearings vs. $300-500 for a replacement alternator?! Is daddy paying your car maintenance bills? Its a very simple DIY, and a very cost effective fix. The tools are a one time investment. I would've done the bushings too while I was in there.

[@jonniejam-shovel6405]

Thanks Michael, kind regards from South East England.👍

[@michaelovitch]

: ) Hi !

[@milovanmaric7649]

ovo je smešno..

[@littletoes8501]

Nice Job! I'd say a nice editing job. Quick and efficient without all the talking or hype! Thanks! ;)

[@michaelovitch]

+littletoes Thanks to you : )

[@palanceanucarmen4617]

I was thinking,oh just somebody how change the bearings on the alternator, untill i saw that the guy is really smart, put the metal case into the oven and the bearing into the freezer,that's awsome. I will try that.

[@michaelovitch]

: )

[@dave9902]

Great video! Fixed the bearings in my 2010 Mercedes-Benz Bosch alternator. Thanks for posting!

[@spelunkerd]

One of these days I'll have to take mine apart, I think the brushes have seen better days.

[@michaelovitch]

Very important on fuel injection cars.... On my car the brushes are kaput too. It's a bosch unit on my volvo with a separate regulator like here but bolted on the outside of the alternator,not under a shield like here. The old ones are a bit bigger but easier on maintenance and can be easily rebuilt. The copper contact/race is at least 2 times thicker and not inside a plastic pressed cage like here.... I thought i wouldn't be able to remove the inner race of the bearing on this one because of the fear to destroy the plastic cage = / I guess it's easier to buy a new one for garages owners than to rebuild them. Plastic era sucks.....

[@edwinposey]

vary professional work plus i love the way you marked the clock position good work

[@michaelovitch]

+edwin posey Thank you !

[@kampatel99]

Great video just what i needed to sort my alternator. Cheers

[@michaelovitch]

Thanks, cheers : )

[@davedeatherage4902]

Thanks! You helped me with this project, thanks again!

[@michaelovitch]

: ) I'm happy if it worked ok for you.

[@ej1644]

love the video ... shows you can still rebuilt the old alternator...

[@michaelovitch]

Thanks ! Yes they can be rebuilt,even if peoples throw them away !

[@8bert9]

Smart putting bearing housing in oven and putting the armature in freezer. An good way to get the other bearing easily on the armature shaft is get a pot and put cooking oil in it and put it on a stove burner, drop the bearing in it and heat the oil so the inner bearing race will expand and then remove it and it will slide right on to the shaft.

[@michaelovitch]

Did you try with sealed bearings ?

[@8bert9]

@@michaelovitch Yes, I have used it for all types of bearings. At work I use a bearing heater which is a device that uses induction to heat the bearing. At home I have used either the stove method or use a bucket with oil in it to submerge the bearing and apply heat to the metal bucket with a propane torch. All that matters is that you get the inner race hot enough to expand enough to get it on a shaft. You have to be quick because you don't want it cooling down before you get it to the correct position on the shaft.

[@michaelovitch]

@@8bert9 Ok, thank you. I will try that next time. : )

[@beangie]

There were a time when Parts were so scarce in some places that everything had to be fixed not changed, now most ppl will just buy a new one and that's it, but recycling nowadays due to pollution it's the way to go, reuse and renew your stuff , plus it's cheaper, and all you need is some time, and some tools. Reuse, renew, and recycle!.

[@davidmoreno1946]

My alternator have bearing noise right now, but it is almost 9 years old and has around 140k so 🤔 I will definitely replace it , good video by the way 👍😁

[@michaelovitch]

Thank you : ) What car is that ?

[@davidmoreno1946]

@@michaelovitch 2010 ford focus ,the alternator still working fine but the noise is getting louder and I am afraid to replace the bearing only because like I said before is almost 9 years old ,what do you recommend ??

[@michaelovitch]

@@davidmoreno1946 It's worth repairing,simply because it's cheap compared to a complete alternator. 140 000 kms is not that much for the brushes,wich are the second elements that wear out. Take a look at their lenght,you should have plenty still.

[@davidmoreno1946]

@@michaelovitch ok Thanks for your reply, I will try to replace the bearings because like you said is cheaper and right know my wallet looks very empty 😁😅,I will definitely use your video has a guide, Thanks 👍

[@michaelovitch]

@@davidmoreno1946 Take your time,be sure to have a plan B to get you around in case you have a problem. : )

[@drwombat]

Always good to mark it even if you don't think you'll need it because you skip marking it only to find out later you needed it

[@michaelovitch]

Yes,for sure. Most of the time you need it just to check if all is installed correctly 100% when finished

[@rudyfuentes1610]

good video, only concerns are why not use a bearing puller for the little bearing? and grinding next to the copper wires can create a contact between them and cause problems when u fire it up,possibly

[@TrustPlumbing]

Thanks for sharing pal, ingenious problem solving. Very impressed!

[@michaelovitch]

Thank you very much ! : )

[@julianmcalister3247]

That alternator looks just like the one I have, the only problem is, I wish my back bearing stayed in the house like yours did. What’s your recommendation for getting it off the shaft without using a cutting tool? I have a small bearing puller and pulled the front one off with absolutely no problem at all, but the back one, it won’t fit inside enough to grab it. Everything always goes easy until that one thing. I’m sure that speaks for everyone else.

[@michaelovitch]

You can just tap it with a chisel to push it towards the end of the shaft. Vibrations will make it move,the bearing races are very hard.

[@julianmcalister3247]

I appreciate your response. I was going to write back and tell you I got it right after. What I did and this might help someone else as well. I actually had the bearings mixed up as far as front and back. It was the front I was having trouble with. I put the housing back on, put the 4 screws back in the plate, and push the shaft out of the bearing. That left the bearing in the housing to push out with my fingers. The bearing puller saved me lots of time and trouble for sure.

[@michaelovitch]

Good work : )

[@rajendrachopra3000]

Very inteligent and tech savvy technician, excellent वर्क done without any hassles

[@michaelovitch]

Thanks !

[@Darek80]

You wrote " no fancy tools required". Sorry but i don't have oven & freezer in my garage :-). Just kidding. I like your videos -greeting from Poland.

[@michaelovitch]

lol Thank you ,greets from France, i'm sure you are going to get the storm we got yesterday in no time : ) It's in Germany right now...

[@spyad9]

Wow...U know the best way to do ur job..

[@jamesstephenson4422]

I Wondered why they no longer have a fan on the outside of the alternator, now its inside :-) :-) Excellent Video :-)

[@michaelovitch]

Maybe for safety reasons,certainly for efficiency. The fan inside have its cooling air guided by the plastic cap wich act as a shroud. The cap was non existing before,the the alternators were bigger in size but had less juice to produce so less heat to evacuate. now, for something smaller you have something more powerful. the cooling had to be adapted.

[@marcMH]

better cooling and protection. :)

[@kentonjoegibsonii2211]

Excellent demonstration, thanks for the video.

[@michaelovitch]

: ) Thank you.

[@jjjohniee]

Nice, just did mine, all for angle grinding the inner bearing ring off, have used pullers before where you could only get to the outer ring and ended up having to do this anyway as they left it behind! Also all for changing the rear bearing, why would you risk having to do it all again and mine looked worse than the front! Thank You! Happy 2019

[@michaelovitch]

Thanks ! Happy 2019 for you too : )

[@RudyMundo-hq9to]

Thank you for sharing your skill now im gona go and fix mine😊

[@michaelovitch]

: )

[@floridamanfishing1390]

Great video really good information i have a question were do i get a rebuilt kit from because i am have this issue right now on a 2017 jeep Renegade 2.4l and i would like to do this but not sure were to get the parts for my alternator

[@michaelovitch]

Thanks, If you want to replace bearings,just remove them,and look the numbers written on those. It's a serie of numbers wich are generally 4 or 5 in a row, followed by two or three letters. Numbers are the reference of the bearing,describing its dimensions,and letters are details about the type of seals used to keep the grease in. just buy the same bearing you have in the alternator. It's common bearings most of the time,and should be quite easy to get in a hydraulic shop or general mechanic shop,or even online.

[@floridamanfishing1390]

@michaelovitch thanks for the reply I really appreciate Watching your video was inspiring for me because I am in the Mechanic field still learning But as you said, in one of your comments to someone else, just do it. And that's what I'm going to do. Probably take a crack at it this weekend Thanks again

[@michaelovitch]

@@floridamanfishing1390 At worst,you mess up and learn from it,except that,you will repair the alternator. I broke few stuff working on it,by mistake or inexperience,you always learn from that : )

[@shakirang4727]

Thx for ur reply. Don't take it wrong, instead of the grinder you could use a bearing puller. No risk of damaging the alternator or yourself mate.

[@michaelovitch]

shakiran G I don't take it wrong at all : ) I thought to the puller too. The problem was the cage on wich the copper race is mounted on.(where the brushes rub on) It's made of platic.... If i had broken it with the puller i would have been in a very deep trouble. So i didn't take the risk of even think to use it.,the car had to run to go to work : )

[@tripjet999]

Before the video was over, I had purchased a rebuilt alternator and had it installed. MUCH less trouble!

[@jaggass]

Peugeot 207's with BMW Prince engine sound like they have worn alternator bearings. They normally sound like that and you can hear from a mile away.

[@michaelovitch]

It would drive me nuts after a while.

[@2ooii3iioorahulyadav26]

Wagnor 2014 model h alternator me se noise ate h jyada repairing ke. Charge Kitna aa jyga

[@scobes92]

nice video but i still don't get why put the part inside the oven (it expands in heat and it makes the hole tigher when it expands therefore less room when you fit the pulley in)

[@michaelovitch]

the more material you have the more expansion you have. Yes the hole will reduce in size because the part expand in all directions,but since you have more material around the hole it will expand even more in the other direction,(towards the opposite of the hole) A pipe when heated,will gain more length than thickness because there is more material on its length than on its thickness. Same for a rectangle,it will be expanding more in length than width just because you have more material on the length.

[@Sartonica]

No. Objects expand just like a photograph. Lengths get longer, widths get wider, and depths get deeper. :) The diameter of holes also get larger.

[@moparbee1523]

Thinking outside the box!! Crafty!!

[@michaelovitch]

: )

[@davidvalens3337]

WOW!!!!!! so you heated up the alternator case and then dropped it in the freezer? how long did it stay in the freezer and and the oven?

[@michaelovitch]

Few hours in the freezer,and few cycles of thermostat in the oven,so you are sure ,being a big chunk of cast iron it will be hot , The size of the part so its inertia to cool down or heat up must be considered.

[@davidvalens3337]

@@michaelovitch so you put it in tbe oven first for how long? And then you put it in the freezer for 2 hrs?

[@michaelovitch]

@@davidvalens3337 The bigger the part the longer you heat it. One hour maximum for a normal car size drum should be good. The bearing goes in the freezer before you heat up the drum,few hours is good.

[@davidvalens3337]

@@michaelovitch so the drum expands in the oven and the bearings contract because they were in the freezer for 2 hrs?

[@michaelovitch]

@@davidvalens3337 Yes,and all metallic parts do it at different rate. In very cold countries,all parts shrink so much that you have more gaps between body panels,and squeeky bearings when you start the engine wich became loose,being shrunk.

[@Shaun60230]

Hehe the Hoven-and-fridge technic again ! Good video, learnt something with it !

[@michaelovitch]

Thank you : ) Yes again, it worked quite well too here : )

[@adamr3028]

How long should i bake my alternator for? Need to make sure its well done.

[@michaelovitch]

15 minutes is long enough,it's aluminium,so it's heating up quite fast.

[@rimka11]

Do you really need to change both bearings? Only the first one is on significant load (the belt tension). The back bearing just rides along.

[@michaelovitch]

When the first one is worn out,the other is taking load too,their alignement not being good anymore. The alternator shaft is acting as a lever on the second bearing then. Generally one is more worn out than the other,yes.

[@perfectsquare2167]

Good video Machiavelli! 😁

[@michaelovitch]

Thanks, Why Machiavelli ?

[@perfectsquare2167]

@@michaelovitch .- Just to make your day better!

[@michaelovitch]

@@perfectsquare2167 : ) Thanks !

[@mtrltoolman]

Great video man . like it and subscribed.

[@michaelovitch]

Thank you : )

[@mtrltoolman]

you are welcome

[@TheGhirlinzoni]

I'd like to hear the noise from alternator before and after the repair.

[@michaelovitch]

Before : meaowwwwwww After : ...............................