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Diagnosing An Intermittent Blower Motor Part II
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5 жыл бұрынIn a previous video • Diagnosing An Intermit... I showed you what a failing blower motor looks like using the U-Scope now with the new motor installed you get to see what "good" looks like. -Enjoy!
Automotive Oscilloscopes: Waveform Analysis - Great book to start w/ IMO : amzn.to/2Cb6Xsg
uScope Basic Kit
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uScope Master Kit
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Due to factors beyond the control of South Main Auto Repair, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. South Main Auto Repair assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. South Main Auto Repair recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of South Main Auto Repair, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained .
@SouthMainAuto 5 жыл бұрын
*Automotive Oscilloscopes: Waveform Analysis* - Great book to start w/ IMO : amzn.to/2Cb6Xsg *uScope Basic Kit* www.aeswave.com/cart.php?m=affiliate_go&affiliateID=2525b91fc8e906e8215984074c9d9e8f&go=www.aeswave.com/uscope-basic-kit-p9621.html *uScope Master Kit* www.aeswave.com/cart.php?m=affiliate_go&affiliateID=2525b91fc8e906e8215984074c9d9e8f&go=www.aeswave.com/uScope-Master-Kit-1-channel-automotive-scope-p9273.html
@Blazer02LS 5 жыл бұрын
Looks like youtube did it again, both U-Scope kits on back order.....
@SouthMainAuto 5 жыл бұрын
I just emailed Carlos to see if this is true. I just assumed they had a lot in stock :D Hope they are happy if this is the case. Maybe next time I should send them an email before making a vid haha
@michaelowen1750 5 жыл бұрын
You explained brushes, connections, fields exactly correctly...
@dalltex 5 жыл бұрын
Mr O. I hope you and your family have a Merry Christmas and I thank you for the hours of education and entertainment you have provided for all of us.
@klwthe3rd 5 жыл бұрын
I do miss the days when you could just replace the brushes. So much cheaper repair honestly. I was lucky that when my starter was acting up, my local Napa Auto Care Center was able to just replace the contact points since they bought out the whole supply of parts from a defunct starter rebuild shop 5 years ago. I hate living in a throw away nation so if something can be fixed, rebuilt and reused while using quality parts and procedures sign me up.
@Lake_Lover 5 жыл бұрын
I miss the days when they made stuff well and it lasted forever. But yes I sure wish we could purchase stuff like that so we could do a "component" type repair. Ugh, we live in a throw away society......
@JackS425 5 жыл бұрын
if you do some digging you can still find starter brush sets. Look up the ACDelco E720A, Ive put a few of them in my personal vehicles and about $0.05 worth of high temp grease and had zero problems with them so far. Ive used them on Ford F150s, My Jeep Grand Cherokee, My sisters Nissan Pathfinder, and Xterras. worth a look, seems like that set fits almost everything.
@throttlebottle5906 5 жыл бұрын
don't forget turning or stoning and soap stoning the commutator if it's rough
@elcheapo5302 5 жыл бұрын
Ivan would have had some spare brushes in his box of parts from a 1980s black and decker drill, put them in and shipped it. Zero parts required. Nice job anyway, Mr. O! ;)
@wyattoneable 5 жыл бұрын
I appreciate the follow up Eric.
@Arnold7221 5 жыл бұрын
Makes perfect sense, seeing the commutator and brushes. And seeing the scope current intermittent/soliod pattern. Again thanks I learned something here.
@bennett12349 5 жыл бұрын
You mite already know this but with there is a quick setting to set up the uscope and the amp clamp. Under the menu choose presets, highlight amp, left or right click till you see low amp in top right hand corner, press OK and hold till it loads. If successful it will say 100:1A in top left hand beside battery. That will have it set up for the 20A (100mV/A) scale. That way the amps will read right. Love the uscope!
@mikefedele4521 5 жыл бұрын
Perfect explanation. 1:45 am just home from work up from 4:45am..... Yesterday so I am a form of tired not yet invented..... With severe back pain... And I got it. With the wave form I could see it in my head it made sense.
@colintrout1095 5 жыл бұрын
Blower motors are one thing,I will buy aftermarket and I have never had a problem with any of them,great video Eric
@patrickmorrissey2271 5 жыл бұрын
That was actually a decent explanation.... You were not wrong, in what you were saying... That's how it works....
@ericcorse 5 жыл бұрын
McMaster Carr sells brushes for those interested. I wouldn't be surprised a decent hardware store would stock them. That little scope is the trick.
@keithgeisen 5 жыл бұрын
My Mrs. walked in and remarked while was watching and said "I hope Santa brings him a new hat" - I tried to explain the hat on a man's head reflects the years experience in his business. Girls what do they know. Have a Merry Christmas Eric - - and leave the hat alone.
@joe2mercs 5 жыл бұрын
My old Mercedes (OK Scotty Kilmer cool your jets) used to cut the blower fan when I took a right turn. I live in Scotland so ‘cooling’ is rarely needed but the lack of circulating warm air was sorely missed. It turned out that the fan motor brushes were sticking in their guides and when I took a right turn the transfer of weight of the armature caused it to shift enough on its bearings to disconnected the brushes from the commutator. Stripped out the motor, sprayed WD40 to lubricate the guides and it worked like a charm and has done so for over ten years.
@cpcoark 5 жыл бұрын
Very good Eric. Never thought of troubleshooting a motor by current monitoring. As for your ripples in the good motor; When the brushes only touch one copper piece, current only flows through one winding. When the brush bridges the commutator gap the current flow increases because it is now flowing through 2 wingdings. Hence your ripple. As with others you have taught me a lot with your videos. Please keep up the good work. Merry Christmas to you and the family.
@aleblanc3547 5 жыл бұрын
Yeah, the most stunning part of this is the fact that the motor could possibly be repaired...I guess they had some 1960s old new stock to get rid of at the factory. LOL Thanks Eric.
@larryh8072 5 жыл бұрын
That's a pretty cool way to analyze a motors performance. That little scope is the smallest DSO I've seen! Not having a portable scope my method for diagnosing this type of intermittency would be to run a set of wires from the blower and plug them into my micronta (Radio Shack) analog multimeter set to dc volts and set on the passenger seat. No fluctuation in supply voltage then the motor is toast. That said believe me I like the more scientific approach for troubleshooting electronics and I need a smaller, more portable DSO. I'm not sure if you have an electronics background Eric but your basic knowledge of electronics is pretty impressive!
@Wayne-Jones 11 ай бұрын
If you want to check the commutator segments, place your meter probes on the segments right next to each other and work your way around one segment at a time, so you trailing probe will go to the segment where your leading probe was and so on. typically, your values will be in the ohm range and be around the same value. Brushes can be replaced and vary in hardness, you can also sand them on a flat surface to fit the brush guide if they’re not quite the right size. Clean the commutator using a ladies soft flexible nail file to remove old brush residue, don’t overdo it. Some new brushes have a preformed curve to fit the comm and should be run in, on its lowest speed for a couple of hours to ensure good contact between comm and brush. If theres no preformed curve, you’ll need to run the motor in for a longer period.
@ipissed 5 жыл бұрын
You can get universal brush kits off e-bay. 10pc sets are a few bucks, get multiple kits and you pretty much have a brush set for anything. If not use a bigger size and custom shape it with a disc sander, or even sandpaper. They are super soft so it takes little time. You can save a lot of money on blower motors, cooling fans, and especially expensive window regulators. Well worth the $20 investment.
@jackpatteeuw9244 5 жыл бұрын
Ivan would have shaved down a bunch of #2 pencils for the carbon, pressed it in to a brush and soldered it on the end of the braid !
@charliemagoo7943 5 жыл бұрын
I saw the click bait. My first thought was he called in ivan to bring in his roll of duct tape... Maybe an eraser to clean the commutator
@jetjazz05 5 жыл бұрын
You can find all kinds of generic brushes on McMaster-Carr, that place is amazing if you really need something and have no clue where to get it, they have just about every size nuts bolt seal gasket hose clamp bearing and brush you could ever ask for. That being said I'm not really sure how you'd find the right sized brush, you could probably get close and guesstimate and it'd work alright as long as the dimensions were close. I would say definitely not worth the trouble or potential that the replacement would be missing a key or groove etc that held the brush in place, but on the other hand sometimes you need a brush for something you can't find that isn't made anymore.
@mikechiodetti6737 5 жыл бұрын
VERY NICE! GREAT VIDEO! Scopes are amazing tools! Mr. O, I saw the video of the "Winning $5000.00," the car and all that was done to it, including Miss Marie's contribution to it. FANTASTIC! I WISH YOU ALL A HAPPY, WONDERFUL, JOYOUS, MERRY CHRISTMAS AND A WONDERFUL NEW YEAR ! !
@upallnight888 5 жыл бұрын
My local True Value Hardware store use to carry replacement brushes for almost any type of electrical motor, however, with the Big Box Home stores like Home Repo, or LOWES they basically drove the mom and pop hardware store out of business. It was a sad day when they closed.
@throttlebottle5906 5 жыл бұрын
suddenly recalls hi-pot testing armatures after turning them on the combo lathe that removed excess epoxy sizing the rotor and commutator. get leaky winding and ZAPPPPP with HV, it shocked me the whole time worked that area lmao.... tales of the motor plant circa 90's, I was the universal fella they could quickly train for any job and run with it, except the motor frame painting, which I really sucked at :))
@baxrok2. 5 жыл бұрын
You nicely channeled your inner Ivan. Thanks for the sweet tear down and explanation Dr. O!
@rebwar08 11 ай бұрын
This guy is a very good mechanic I am a mechanic myself
@geologic740 5 жыл бұрын
Thanks for the follow up, Eric.
@jamesbruno5896 5 жыл бұрын
Thanks for the follow up!
@phprofYT 5 жыл бұрын
You did fine. I teach some basic electronics and that is the correct explanation.
@zeropointzero 5 жыл бұрын
Better to just put a new motor in. That commutator looks chewed. Great explanation of the ripple. I had to "fix" one in a Chevrolet Optra (Daewoo) for which we could not get a motor on short notice. Cold weather plus 3 kids is no way to travel when the blower fan doesnt work. The insides actually look exactly like the one you show here. Plenty of brushes left, but they were jammed in the holders, so I sanded them down a little.
@donnyo639 5 жыл бұрын
Good scientific approach. Although I did like the "beat on it a couple times" method in Part 1. Seems I use that method for my starter too! Have a gr8 weekend.
@slouie87 5 жыл бұрын
I'm glad you showed us the "good" waveform. I was kind of lost trying to figure out the defects in the "bad waveform". Thanks again for some very informative lessons
@tomdewey9907 5 жыл бұрын
True root cause analysis which I like.
@williegillie5712 5 жыл бұрын
Hey Eric, Thanks for taking the time to show why the old fan was junk. I’m glad you took the time. I usually always tear apart the bad part to see what caused the failure. One time I was pretty surprised at how lousy aftermarket stuff can be when I removed a starter from my friends Honda ATV we’d just replaced a few months earlier. I opened it up and after I pulled the armature out all the magnets that are supposed to be fixed to the outer case were all laying lose inside the case. We opted for a new set of brushes and put the old starter back into it. Starter works great 2 years later. I’m still flabbergasted at how the aftermarket starter worked at all. I never did bother to see if it was dorman or someone else competing with them.
@johnarrington6292 5 жыл бұрын
Dorman? 💀
@notajp 5 жыл бұрын
You can actually use JB Weld to fix loose magnets like that. I’ve done it on small engine starters. Also works for flywheel alternator magnets that come loose. See that a lot on Kohlers.
@kboomarangfinch167 5 жыл бұрын
I saw that comment about showing a "good" and so glad you did and made the follow-up, Thanks Big E!
@dougtexas 5 жыл бұрын
Spot on explanation of how it works, and doesn't work. Good video!
@tiredagain6722 5 жыл бұрын
My dad was an electrician in the 50's and 60's and he regularly replaced brushes in motors. As a result he had collected many brush sets which i now have. It is likely that there is a brush set in the collection that would work. Keeping old junk can have it's advantages.
@larrygaggin9364 5 жыл бұрын
Watching your videos makes me really think “if he can do it, I can do it!” So I replaced the blower motor in a Saturn Astra. Piece of cake until I had to plug the connections into the resistor box. Could barely fit my fat hands far enough to stab it in there. But you know what Eric, I did it. You were right.
@paullangenberg5907 5 жыл бұрын
Stumbled across your channel a few months ago , as a home mechanic picked up lots off bits and pieces especially on your electical videos . Thanks a alot Eric
@fire7765 5 жыл бұрын
Thank you for that follow up (as I was one of those people that asked for it). Great explanation, as a diy'er I am still learning with my snap on labscope and my amp clamp, you and others you tube videos has help me a lot, I can't thank you enough.
@MrPanther2868 5 жыл бұрын
I believe you can still get brushes for starters, just the problem of finding the rite size
@n197272 5 жыл бұрын
Another great video Eric! Thanks for taking all the time to inform and entertain us. Wishing you and your family a Merry Christmas.
@normangallant9879 5 жыл бұрын
Nice good scope patern
@wizard1800 5 жыл бұрын
Well theres your probem lady! Great video and thanks for the follow up.
@JoesAutoElectric 5 жыл бұрын
Nice Eric. Always good to see what makes something tick....or not tick. LOL
@mikegoodman4133 5 жыл бұрын
Happy Christmas to you and your family Eric. Thanks for all the videos and I hope you have a fantastic new year.
@rnreajr9184 5 жыл бұрын
Loved these videos about the blower motor diagnosis. It looked like the brushes don't just break contract between segments, but rather the next segment also begins to contact the brush, causing an extra bit of current to briefly flow until the first segment finishes. Either way kudos to your showing the before and after videos. Merry Christmas to the O family!
@meyers027 5 жыл бұрын
Thanks for the video, literally just had this problem with intermittent blower. Your video this morning helped me diagnosis the problem on my car. I was about to put everything back together because I couldn't find the issue. Everything bench tested fine, motor ran with a jump pack, switch had continuity, powers and grounds were good, resistor values were in spec.
@randyhughes5160 5 жыл бұрын
Thanks for taking the time and showing us the good and I did not realize the high was on a different power wire nice video
@Paul1958R 5 жыл бұрын
Eric, Thank you for that follow up (as I was one of those people that asked for it). Great explanation and thanks for the 'Ivan moment' - love to see that hardware torn down like that. SMA#1 God bless Paul
@ET_Don 5 жыл бұрын
I believe Fan On High = Bypass all resistors = Full Beans. lol Happy Holidays to you and your family, Mr. O
@marty0715yt 5 жыл бұрын
Thanks for following up on that waveform!!! You da MAN
@arthurfricchione8119 5 жыл бұрын
Good one Eric. Send it to Ivan he will pull something out of his sleeve. ❤️
@jamesstafford9067 5 жыл бұрын
Hey Mr Eric, I have a video that you might consider doing. Example, I own 2002 Ford F-150 King Ranch and I would like to know how to change the wiring for the factory fog lights. They come on only when headlights are on and in the low beam setting. I'd like to wire them to come on with factory switch, but without the headlights having to be on, nor having them cancel out when you trigger the high beam on. Thanks and you were amazing with the video with Marie giving Mrs Amber the Ford Fusion. God bless you and your family this holiday season.
@kentsimon2152 5 жыл бұрын
I just replaced the blower motor on my car a week ago, same problem. I gotta get me one of the u-scopes, I have seen you use it so many times, I used to have an oscilloscope. When I saw you diagnosing fuel injectors with that thing I was pretty much sold then.
@randygould4109 5 жыл бұрын
great follow up video
@norcal715 5 жыл бұрын
If you do not have a scope you could put your voltmeter on AC volts and it will measure the AC component of the voltage. With the blower on low I would expect that you would see between 4 and 8 volts ac with the defective motor. Just millivolts with the good motor. The highest ac voltage would be achieved on low because of the highest resistance of the speed resistor block. When the brushes are making contact you would see the voltage drop of the resistor and when the brushes are not making contact you would see full battery voltage. This test could be done right across the motor leads with no special test equipment necessary. Another great video on the SMA channel. Thanks Eric O for the follow up.
@throttlebottle5906 5 жыл бұрын
a test-light in series and turning very slowly works pretty well. also wiggling/turning back and forth, it will go into theatrics :)
@SmittySmithsonite 5 жыл бұрын
We all must channel our inner Ivan from time to time. I'm going to tear down a thermal switch for my oil & coal boilers that failed the other day, after I let the power cord hang down and rest on the section of the boiler that was 550°F. After I had walked away, BZZZZT!! I want to see what the contacts look like inside - there was infinite resistance across the switch no matter the position. Must've cooked 'em! Thing was 22 years old at a minimum anyway - I suspect even older than that. Nothing like troubleshooting 120v electrical problems at midnight on a Saturday night! The things a man will do to stay warm ... 😁 Must be that time of year. Just did a motor and switch in a '03 Taurus. My temporary fix of loading the motor up with silicone spray was extremely temporary, lol. At least it made the annoying squeal go away. The switch was your typical plastic piece of garbage with the thinnest copper contacts inside. Guess I can't criticize too much - it made it 15 years.
@richardcranium5839 5 жыл бұрын
any time i'd change a motor i'd press out the magnets unless they were glued in. most aren't just a spring clip holding them. lots of uses and they are fairly strong
@letzrockitrite8469 5 жыл бұрын
Thanks for Sharing !!... and Merry Christmas to all of the O's near and dear to your hearts Mr. and Mrs. O..... Jon O from Ida-O
@mike-yp1uk Жыл бұрын
Great video. I wish you would have ac coupled and shortened the time base for brush signatures. Counting commutators. Lol
@davjociestanski5743 5 жыл бұрын
Thank you for second part
@heyitschinoable 5 жыл бұрын
That gen Vibe and Corolla with the 1ZZs are great cars. General maint in mine. Had a starter fail on it threw a rebuilt one in there i paid $45 bucks for it. Its been 4 years been fine ever since.
@yepme6484 5 жыл бұрын
Jerry's building supply has brushes, I was surprised they had them in there store. OREGON
@jeffjankiewicz5100 5 жыл бұрын
Wishing you and your family a Very Merry Christmas. 🎄🎅
@Skinnyboy297 5 жыл бұрын
We need to send Mr. O like a truck load of his favorite beer, and Miss Marie lots of Ice Cream!!
@rhkips 5 жыл бұрын
I'll try to remember to double-check tomorrow, but if you have an account with Stens, I'm pretty sure they have an entire section of their catalog dedicated to DC Motor Brushes. :D
@63256325N 5 жыл бұрын
Cool! Thanks for the videos.
@anthonysova7117 5 жыл бұрын
U scope sold out back order January u did to good of a job good for u Eric O
@josephlanguemi 5 жыл бұрын
thanks for the followup
@orville58 5 жыл бұрын
thanks for the explanations in regular terms I'm starting to believe if you can do it I can too ,
@samrugtiv3839 5 жыл бұрын
Good job well done. Eric merry Christmas my friend. Sam
@Michael-fw5ef 5 жыл бұрын
This is a very good video. Next time you do a Heater Core video, please remember to upload it to your You Tube channel. Thanks.
@rickyj2013 5 жыл бұрын
As someone in the industry I appreciate your videos, I learn something from videos on even the simplest of jobs and I thank you for that...but I’ve gotta ask, It seems like you run a fairly busy shop. How do you manage to find the time to make so many detailed videos while running a business, do your customers pay for this content to some extent?
@jeffmiller6100 7 ай бұрын
Very good.. Thanks
@phillipjones3342 5 жыл бұрын
I figured it was the brushes don’t remember how old the vehicle is but somebody ran that fan a lot
@thesteaktc 5 жыл бұрын
Thanks for the update! Great informative video.
@madmaxsaturn 5 жыл бұрын
That's my car! I like it but the the 2000 rpm idle when it's cold outside is annoying. It's really noisy and i leave early for work. My neighbors must love me.
@billburkart9087 5 жыл бұрын
That made sense to me. Now what about the reindeer? Mrs. O's project
@billyyoder8171 5 жыл бұрын
Sneaky, short notice for follow up. Thank you Eric.
@roadkill5333 5 жыл бұрын
I came out of the house the other morning, and there must have been 100 turkeys walking in the field across the street! I thought of you immediately!! I bet Eric would love a chance at those beauties, for Christmas dinner!! Of course, I was driving in the dark, the other night, an there was just about as many deer walkin around!! There were so many, and they were so close, I could have got out and slapped one (just before they all stomped a mud hole thru me)! I thought of you then, too! It wasn't nothing like you showed out in the field. My car was running, my headlights were on, I was blowing the horn, to let them know not to jump out in front of me, my cologne was heavy in the air, I was wearing blingy clothes, my key chain made a jingly sound when I walked, and there wasn't any camouflage in sight! I could have walked home on the deer backs, and not got grass on my shoes, there were so many!! I HAD NO RIFLE!!!!!! Ain't that the way it always is??
@SouthMainAuto 5 жыл бұрын
🦌🔪🏹🍖
@WisdomVendor1 5 жыл бұрын
Before all this new tech came along, Us old techs would have to see intermittent operation, confirm power and ground while it happened, and then tear into the motor , check commutator plate continuity and perhaps slap the armature on a growler. I suspect many folks here have no clue what a growler is. As also an electrical engineer, I really appreciate the new tech tools. :)
@buckhorncortez 5 жыл бұрын
Yeah...the "Growler" is the EA-18G. A carrier-based electronic warfare aircraft...that's what you meant..right?
@WisdomVendor1 5 жыл бұрын
@@buckhorncortez No, and thankyou for making my point :)
@kevinbyrne4538 5 жыл бұрын
Just in case you're curious, see Wikipedia's article "Growler (electrical device)".
@haywardsautomotive6156 5 жыл бұрын
Yep back when we rebuild our own starters, generators, alternators, wndshld wiper motors, etc. Growler was the fast way to check out an armature.
@jmaxim80 5 жыл бұрын
Any local ace hardware will have a complete selection of brushes in their nuts and bolts section
@Sctronic209 5 жыл бұрын
Sweet very cool.
@donnierobertson3088 5 жыл бұрын
Great job again like always A+
@nhra7110 5 жыл бұрын
Superb!
@jerryblood9554 5 жыл бұрын
I bought a pair of brushes at the local hardware store once and repaired my blower motor. Like 5 bucks and some labor.
@brianunangst4447 5 жыл бұрын
How does this video get a dislike?!? 5 minute follow-up to yesterday showing you how to be sure it's a good fix, with the bonus of a little blower motor dissection. Some people just aren't happy, unless they're unhappy.
@thesteveprichard 5 жыл бұрын
Enhance, enhance! I could see the wires sticking through the carbon?
@thesteveprichard 5 жыл бұрын
Electrician here, I think you were correct on the sine wave peaks and valleys yesterday cause. Another great video! Thanks!
@stevesautorepair 5 жыл бұрын
There is several places around here where a person can get those parts. I have done some however sometimes it is better for your blood pressure to just buy a replacement one lol
@Vermont-ox4rm 5 жыл бұрын
Awesome video(s). Keep it up.
@AntonioClaudioMichael 5 жыл бұрын
Great video Eric O
@tonythediyer8537 5 жыл бұрын
A new slang for an oscilloscope, a Mr. O'scope (see what I did there?)...
@SvendIt 14 күн бұрын
could you have done this with a multimeter instead and just watch for a reading that jumps around instead of being steady?
@zombietherapy1759 5 жыл бұрын
i have a 2004 matrix that had the same issue a blower motor and a/c compressor are all i have done to this car (brakes and general maintenance of course) they don't make cars like this anymore. It may be with me for a long long long long long time! scotty kilmer would be proud, he is right on this one lol
@heyitschinoable 5 жыл бұрын
ZombieTherapy 17 i love that gen Vibe and Corolla. They share the same 1ZZ-FE 1.8 engine. Although i wish my Corolla S was actually the XRS 😞 that 2ZZ engine is killer! Made by Yamaha for Toyota. My Corolla is at least 5 speed manual. Ive done basic maintenance but i did have a Starter fail and threw in a rebuilt for $45 bucks!
@zombietherapy1759 5 жыл бұрын
@@heyitschinoable oh ya i forgot, i did put a starter in mine a few years back, an autozone with a lifetime warranty OK 3 things since 2004. Honestly didn't know about the yamaha eng. Mabye we an get a deal if we both buy one. we'll do yours first to work out the quirks lol
@phillully4472 5 жыл бұрын
Eric O, that commontator on the end of the amateur was quite worn as well wasn't it?? meaning that would have needed to be replaced as well as the brushes if available. your explaination of the amperage draw was spot on and having a visual reference aids in understanding electric motors. i have had experience in vacuum motor repairs very similar to that blower motor. Have an awesome Christmas with family and friend's.
@SouthMainAuto 5 жыл бұрын
Yes is was grooved pretty bad and would need to be turned down at least
@lesbender236 5 жыл бұрын
Without all the fancy equipment,generally speaking,if banging on it makes it work it means it has bad brushes,not a bad armature,as your tear down indicates.So IMHO the old way is just as good,until they start using brushless motors
@mikecont9742 5 жыл бұрын
Thanks for update video. Your videos are absolutely invaluable....
@apexkeeper 5 жыл бұрын
The "smack it a couple times" method seemed just as effective in diagnosing as the scope lol.
@roscoesomeone9764 5 жыл бұрын
Gobs of various electric motor brushes on e-bay. Direct from China. They will show up before summer.
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