How Starter Motors Work

Do you know how a starter motor works? In this video, we're going to take a look at the basics of starter motors and see how they work.
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By the end of this video, you'll have a better understanding of how starter motors work and you'll be able to start your car more reliably!
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[@EngineeringMindset]

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[@blitzblutz]

I saw a show years ago and, if my memory is correct, it was a couple of young fellows from Michigan that came up with the starter motor for automobiles. They sold the device to General Motors for one million dollars, which was an absolute fortune in those days and wouldn't be too bad even now. Before this, people had to get out and hand-crank the motors to get them started and I know that some WWII German tanks needed to be hand-cranked by two men. The young guys took the money and traveled the world. Sounded like they had a good life.

[@dewiz9596]

The irony is that that invention, the electric self starter, became the death knell for the electric car at the time. It is said that Henry Ford’s wife drove an electric.

[@isyt1]

The British had invented it many years prior (H.J. Dowsing)

[@JohnSmith-ok9sn]

@@isyt1 No, the British invented Life itself, and everything in it! ("Invented a starter"... Why be so modest, @isyt!?) :))

[@heronimousbrapson863]

Was one of them Charles F. Kettering?

[@mikechiodetti4482]

Very good description. It never ceases to amaze me how magnetism can cause motion.....especially when cranking an engine. I've rebuilt many GM starter motors from the 1960's and 1970's during that time. My Dad taught me. Also rebuilt Ford, Chrysler, Nissan and large truck cranking motors. Never worked on an air starter. Interesting animal that one.

[@grabasandwich]

I've never heard one in person but I've watched many videos of Detroit Diesels with air starters! As cool as they sound, I bet the novelty would wear off pretty quick.

[@spelunkerd]

This was the best illustration of how these work that I have found to date.

[@alberoDiSpazio]

My Accord wouldn't start, lights and dashboard worked but there was no starting 'click' usually associated with the starter or specifically the solenoid. My neighbor gave the starter motor a little bang and the engine worked! I'm thinking the solenoid was stuck.

[@michaelcatalanottohandyman]

I wish you would’ve released this video a few weeks ago when I had to completely rebuild the starter on my boat

[@timehunter9467]

Can’t beat the pre-engaged starter motor! Turned one on clamped in a vice, sparked a bit but cool how they work.

[@jharris0341]

This stuff is good for teaching kids. Muchos grassy adze.

[@thelightbrigadef4172]

Make a video about *CONTACTOR.* How they works and why contactor needed.

[@JazzbLu]

I've always wondered how they work exactly. I've know the operation of it, just not why. Thank you for this video!!!

[@taeguy5236]

How does the starter motor move into the flywheel position without bashing the teeth on the flywheel?

[@rafmatt1607]

The teeth on the starter gear are cut so that they will slip into the flywheel gear. Kind of a bevel cut

[@mikel4879]

Taeguy / By the geometrical shape of the teeth, as Raf Matt says here in his text. However, even if the teeth of the two pinions ( gears ) would be exactly one in another, the light pushing force applied by the mechanical fork combined with the rotation of the starter makes possible for the teeth to intercalate instantly.

[@spelunkerd]

I agree with the replies so far. When you take the gears apart you also find the mechanism is spring loaded, with no hard contact between teeth if it meets direct contact. If contact is made, the spring maintains pressure to engage while the gear is rotating, so when a gap is found the spring can push the teeth all the way home. The ring gear teeth are harder than the teeth of the starter, so in theory if the teeth get damaged you are likely to repair that by simply replacing the starter. As stated in the video, when the teeth are extended they also rotate, which gives more versatility to slip into the next available gap. The overall design, including the clever pull-in coil switching, is genius.

[@adrianbravo7623]

Hey, love these videos and can you please do a video on accelerometers please?

[@b1tstr3am]

search for "engineerguy accelerometer". it's very in-depth

[@SjMk1.]

This was the video I was after. That's some ingenuity

[@dante3546]

I was allways curios on how does a car start up, Thanks for the great content as allways!

[@Srimaster0011]

The best video in youtube to learn starter moter😍😍

[@atozy1478]

mind blown, holly smokes this is impressive engineering

[@jupitermobile6984]

You guys are doing great job. You are angel. I have no words to say you many thanks. 🙏🙏🙏

[@JunPVlog]

Nice demonstration thank you for sharing this video

[@smartchip]

Simply Thank you,

[@alexisvera8960]

How educative are your videos. Congratulations.

[@encryptedaviation1452]

How did humans have the time and patience to invent this

[@Savage-lx5yj]

Perfect! Excellent explanation! Thanks

[@juperrr]

Golden as always !

[@PappaBear_yt]

Great series! 👍🏻👏🏻🙋🏼‍♂️🍻🍻

[@delonthomas5049]

Amazing

[@theshemullet]

Thanks. Looking forward to some new videso

[@EngineeringMindset]

Thanks,adam

[@lumbiniashutoshtambat5871]

Nice one man!

[@thawzinkhant1759]

Sir which starter is more powerful permanent magnet stator or electromagnet stator ?

[@childishtombino1275]

Doesn't matter, unless one form of magnet happens to be stronger. One thing to note with an electromagnetic stator is that will also be drawing current from the battery, potentially reducing the voltage potential across the battery (thus reducing performance by a degree). Strictly DC motors will almost always be permanent magnet. Motors that use an electromagnet stator and also run on DC are universal motors, from a quick google search, it seems they typically aren't as efficient as a DC motor.

[@thawzinkhant1759]

@@childishtombino1275 Yes universal motor have less efficiency than pmdc motors

[@childishtombino1275]

@@h7opolo At a much higher current. Which is an issue if you're running off 1 battery. It doesn't seem appropriate in this application.

[@LonersGuide]

Awesome!

[@yt-xo4lb]

Alternator excitation current, lamp, ammeter wiring diagram

[@drrobotnikmeanbeanma]

Can any General Motors starters work for a Hyundai.If so what makes and models are compatible ?

[@vishalnagar4942]

The video poped up right im the week when i replaced my starter motor. Gods are on my side lol

[@CMZneu]

It would be cool if the starter and alternator had the same dc motor.

[@wanderingwhimsy4800]

Excellent thank you informative without some grease monkey , yakking. . Good job.

[@gabrielphilips6980]

Couldn't the same motor be used to charge the battery and to start the combustion engine?

[@Mrkevi123]

@1:23 So the brushes don't make contact anymore and this is why it stops working

[@itsyaboisausagem9578]

Wtf. It’s an automatic crank. That’s badass.

[@HWmaBV]

People really just came up with stuff like this and here I am not knowing how to set up a WiFi modem

[@SuperVstech]

Goodness… this type starter motor is nearly unused anymore. Most are gear reduction, centrifugal geared bendix assemblies… no lifting or holding solenoids…

[@SuperVstech]

@@nigelcraig3949 oh, my vehicles are ancient … all have the type in this video.

[@joseprimetime1579]

Is the flywheel just called a flywheel or does it have a different name. My starter is new but it sometimes grinds on the flywheel. Don't know if it's because it's cold or if I need a new flywheel

[@clay4444]

It’s better if the the teeth on on your started could be damaged. Better to replace the started because if the teeth on your flywheel are damaged the transmission will have to be moved to access and change it.

[@Анатолийвдеревне]

Очень наглядное пособие

[@hk74654]

This is literally just a segment copied from an earlier video of yours "Starter Motor Explained - How a car's electric starter motor works" and uploaded as a "new" video with no changes.

[@rutherfordagripa5042]

Hi

[@MAZID000]

❤️❤️

[@gauravnegi4312]

didn't understood anything 😭

[@DennisMartinezCalifornia]

Electricity is like magic 😫😂

[@fabrisoto]

👏🏽👏🏽👏🏽👏🏽👏🏽👏🏽

[@twistedpears]

How tf did humans come up with this stuff starting from sticks and stones

[@lunarlancer]

First?

[@odhran3300]

maybe

[@KingMobilegaming545]

I was allways curios on how does a car start up, Thanks for the great content as allways!